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HomeMy WebLinkAbout561 - Central Avenue ImprovementsA RESGLU'TIDI OP THE CITY COUNCIL OF THE CITY CF ti' PORT BEACH, CAWPORNIF", ADOPTING SPECI- 1CATIONS rOR THIS: ITJFROvE?vII:r.T OF CENTRAL AVENUE 01-1-D 0147 Y TTWN SWIJ CHIT BE W RESOLVED by the City Council of the City of Newport Beach, that the following specifications for the Improvement of Central Avenue in the City of Newport Beach, be, and the same are hereby adopted: Instructions to Bidders General Provisions. Standard Specif9"cations No. 60 for General Requiremants. Standard 1peci..'_ications No. 61 for Cement Concrete Materials and Rainforcing Steel. Standard Specifications No. 66 for Cement Concrete Pavement. �j- INDEX. INSTRUCTIONS TO BIDDERS. ME 1. TIME AND PLACE BIDS ARE TO BE RECEIVED ............. 1 2. PROPOSAL ............ ............................... 1 S. CERTIFIED CHECK ..... ............................... 1 4. ACCEPTANCE OR REJECTION ............................ 1 5. CONTRACT ............ ............................... 1 S. SURETY BOIMS.. .. 7. SURETY BONDS ,- PTURCHASE 0? .............. 8. COMPENSATION INSUR.QICE. :. 9. TIME OF COMPLETION ............................... 2 h, INSTRUCTIONS TO BIDDERS. 1, TIME AND PIACE BIDS ARE TC 33 RECEIVED. Sealed proposals or u` -'ids will be received by the Gity Glerk of the City of Newport Beach in his c.ffice in the Cf.ty bail of said City up to 7:30 o'clock P. M. on Monday-, January K 1-930, for the improvement of Central Avenue within said City as contemplated by Resolution No. of the City Council of said City in accordance with the plans and specifications therefor and to execute the contract therefor to the satisfaction and under the supervision of the City Engineer of said City. 2. PROPOSAL. The sealed bids or proposals must be submitted on the form of proposal prepared for that purpose by the City Engineer. The sealed envelope shall be plainly marked "Bid for the improve- ment of Central Avenue". A copy of the advertisement calling for bids shall be attached to the bid. The bidder must state in words and figures the unit prices or specified sums, as the case may be, for which he pro- poses to furnish all the materials, labor, tools, equipment, appliances, machinery, supplies, etc., necessary or required to complete the construction of said work in accordance with the plans and specifications heretofore adopted by the City Council of the City of Newport Beach and to the satisfaction of the City Engineer of said.City, including Compensation Insurance and all incidental costs and expenses. Blank spaces in the proposal must be properly filled in, and the phraseology thereof must not be changed. Alterations by erasure or interlineations must be explained or notice in the proposal over the signature of the bidder. If the bid is made by an individual, it must be signed with the full name of the bidder, whose address must be given; if it is made by a firm, it must be signed with the co- partnership name by a member of the firm, and the name and full address of each member must be given; and if it is made by a corporation, it must be signed by an officer in the corporate name and the cor- porate seal must be attached to such signature. 3. CERTIFIED CHECK.: Each proposal must be accompanied by a certified check by a responsible bank in the City of Newport Beach, or a satisfactory bond made payable to the City of Newport Beach, for an amount not less than ten (10) per cent of the aggregate sum of the bid, as a guarantee that the bidder will enter into the proposed contract if awarded to him. The check accompaq -in.o the successful bid will be re- turned upon the execution of the contract; checks accompanying the rejected:bids will be returned upon the awarding of the contract. 4. ACCEPTANCE OR REJECTION: No bid received after the advertised time of opening bids will be considered. No bid will be considered unless accompanied by the required certified check. The City Council of the City of Newport Beach reserves the right to reje.-t any and all bids. 5. CONTRACT: The bidder to whom the contract is awarded will be required to execute a written contract with the Street Superin- tendent of the City of Newport Beach within ten (10) days after said contract is awarded to him. -1- • The following pleted contract:- Notice Proposal, Specifications drawings for the work on of said City. a - "41 documents are essential parts of the com- Inviting Bids, Instruction to Bidders, and the plans, profiles, and detailed file in the office of the City Engineer 6. SURETY BONDS: The person or firm to whom the contract is award- ed will be required to furnish a surets bond in an amount which shall not be less than twenty -five (25� per cent of the total amount of the contract as a guarantee of the faithful performance of said work; and additional bond in an amount which shall not k;e less than fifty (50) per cent of the total contract price, to guarantee the payment of labor and material. 7. SURETY BONDS - PURCHASE OF: The City Council of the City of Newport Beach will require that the bidder to whom the contract is awarded obtain his Surety Bond for faithful performance and to guarantee the payment of labor and material from representatives or agents of Surety Companies residing in the City of Newport Beach. 8_ C01'ENSATION INSURANCE: The Contractor will also be required, before beginning any of said work to take out and maintain during the lire of the contract, compensation insurance covering the full liability of the Contractor and other persons primarily liable for the compensation to any and all employees to be engaged in any of said work for any and all injuries suffered while engaged therein, and the contract will further provide that at all times during the life thereof, upon reasonable demand, that the Contractor agrees to egnibit the policy of insurance covering such employees to any of the members of the City Council, the City Attorney and the City Engineer off said City of Newport Beach., 9. TIME OF CODMETION: Bidders attention is invited to the fact that time is an essential element of the contract. The time of completion must be stated in the proposal and will-be-given-con- sideration when awarding the contract. Bidders must state the calendar days (counting Sundays and.Holidays.) within which per- formance of the work will be commenced., and the number of calendar days (counting Sundays and Holidays) for completion of the work, all dating from the date of the contract. -2- 0 S P E C I F I C A T I O N S. -------- - - - - -- GENERAL PROVISIONS. &S-1-M 1. CONTENTS .......... ............................... 1 2. DEFINITIONS ....... ............................... 1 S. PLANS. ............ ............................... 1 4. SUBLETTING ........ ............................... 1 5. TINE OF COTIVIENCENIENT AND COMPLETION OF WORK ... , .. 1 6. EXTENSION OF TIME . ............................... 1 7. MINIMUM WAGE AND EIGHT HOUR DAY .................. 2. S. PREVENTION OF ACCIDENTS .......................... 2 9. ABANDONMENT OF CONTRACT .....:.................... 2 10. CANCELLATION OF CONTRACT FOR DEFAULT OF CON' T' RACTOR ........ ............................... 3 11. PAYMENTS .......... ............................... 3 12. EXTRA WORK ................... ................... 4 13. MINOR MODIFICATIONS ............................. 4 14. PROTECTION OF EXISTING STREET IMPROVEMENTS AND PUBLIC UTILITIES ............................ 4 15. INTERRUPTION TO TRAFFIC ......................... 4 16. ASSIGNMENT OF CONTRACT .......................... b h. S P E C I F I C A T T O N S. -------- - - - - -- GE'�EFtF_L r ?c�'1';:3IGNS. 4 r�� 1, COnT ENT S: The following general provisions shall obtain where practicable, as determined by the Ragineer in the work to be performed under this contract: except where such general provisions may contradict the special provisions of a particular specification.::. 2_ DEFINITIONS. Whene er the work "Cite" is used in these speci- fications, it refers to the City of Newport Beach. Whenever the word "City Engineer" or "Engineer" is used in these specifications, it refers to R. L. Patterson, City Engineer of the City of Newport Beach. Whenever the word "Contractor" is used in these speci- fications, it refers to the party or parties of the second part in the agreement for the construction of the work. S. PLANS: The detailed location of the work to be done, to- gether with grades, cross - sections and special construction, is illustrated on the maps, profiles, cross - sections and plans adopted therefor by the City Council, and on file in the office of the City Engineer. These maps, plans, profiles and cross - sections are to be considered a part of these specifications, and any notations appearing thereon shall be considered as though in- corporated as a part of these specifications. All distances and measurements given are in a horizontal plane. All work shall, during its progress and on its completion_, conform to the lines and levels which may from time to time be given by the City Engineer. 4, SUBLETTING. The Contractor shall emplo;,r such sub- contractors as are acceptable to the Cite Engineer who shall have a right to a full and complete list thereof at any time on demand. No subcon- tracts shall be let for any portion of the work except with the :written approval of the City Engineer. No sub - contractor will be recognized as such and all persons engaged in the work of con- struction will be considered as employees of the contractor, and their work shall be subjected to the provisions of the contract and specifications. 'Waere the whole or a portion of the work which has been sub -let by the Contractor is not being prosecuted in a manner satisfactory to the Engineer, the sub - contractor shall be removed by the Contractor immediately on written notice of the City Engineer? and shall not again be employed on the work. should the Contractor thereafter accept and use on the job work or labor furnished by such unacceptable sub- contractor, then such material supplied or work performed is subject to rejection. 5. TINIR Or COI&AENCENiENT AND CONIPLETIOid OF WORK: The person, firm or cor-ooration to whom the contract is awarded will be required to enter into a contract within ten (10) days after the award of to the same, and to commence work within fifteen (15) days of the date of contract, and comnlete all of the said work within S - �p days from the date of said contract. 6� EXTENSION OF TIME: An extension of time will be allowed for unavoidable delays that might result from strikes, fires, floods, or from other unforseen causes that in the opinion of the City Engineer, are clearly beyond the control of the Contractor. If tine work be delayed by specific orders to stop work given by the City Engineer, or if delay or hundrance be caused by the failure o:° the City to provide the necessar77 right of way or permission, -1- .� � - then such delay will entitle the Contractor to an extension of time equiva,le'nt to the time lost by such delay. • ?, MINIMUM, ,VACUT ADD EIGHT i'OL`3 D ?.: The minimum compensation for labor nor all work pe : :fc :n,d. u ?tar the contract shall be $2.50 per days Eight hours shall constitute a day's work, and no laborer, work, -man or mechanic in the emplo-y' of the Contractor, or of any sub- contractor, doi.n or contracting to do any part of the work contemplated by this contract shall be required or per- mitted to labor more than eigat (8�' hours during any one calendar day, except in cases of extraordinary emergencies caused by fire, flood or danger to life or property, or except to work on public military or naval defenses or works in time of war; and that the Contractor shall forfeit a penalty to the City of Ne�rport Beach the sum of $10.00 for each laborer, workman or mechanic employed in the execution of the contract by the said Contractor, or any sub - contractor under him, upon said work, for each calendar day during which laborer, workman or mechanic is requested or per- mitted to labor more than eight (8) hours. 8. PREVENTION -0.7 ACCIDENTS. The Contractor shall at his own expense, place and maintain proper guards, barriers, and signs at such locations as may be necessary for the prevention of acciflents. He shall, at night, put up and keep a sufficient number of suitable lights where necessary during the prosectuion of the wort, to prevent accidents or injuries to the person or property of others. The Contractor will be held responsible for and be required to make good, at his own expense, any and all damages of whatever nature to persons or property caused by carelessness, neglect or want o- due precaution on his part, his agents or em- ployees, and he shall indemnify and save harmless the City from all suits or actions and damages or costs of any kind to which the Cit17 may be subjected er be put bly reason of injury to the per- son or pro�3ert- of others, resulting from negligence or careless- ness, or t_e use of improper materials, or improper methods of operation on the part of the Contractor, his servants, agents, or sub - contractors, in the prosecution of the work, or by or on account of any act or omission of the Contractor, his servants, agents or sub - contractors. The whole or so much of the moneys due or to become due the Contractor under this agreement as shall or may be considered necessary by the City Council may be retained by the City until all such suits or claimsfo r damages shall have been settled or otherwise disposed o'`, and evidence to that effect furnished to the satisfaction of the City- (`.ou.ncil. 9. ABAUD0idMENT OT CONTRACT: The Contractor further agrees that if the work to be done under the contract shall be ahandoned, or if the contract shall be sublet or assigned by said Contractor, or any of the moneys or orders payable thereunder shall be assigned, otherwise than as herein provided, or if at any time the Engineer shall be of the opinion, and shall so certify in writing to the City Council of said City that the said work is unreasonably or un- necessaril;. delayed, or that said Contractor is willfully violating any of the terms, covenants and agreements of the contract or these specifications, or is not executing the contract in good faith, or is not making such progress in the execution of said work as to indicate its completion within the required time, said City Council shall have the power and right to notify said Contractor to dis- continue all work or any part thereof under the contract, and upon such notification said Contractor shall discontinue: said work or such parts thereof as said Cite Council may designate; and said Coun.c' -2- Ij-, shall thereupon have the power to employ by contract or otherwise, and in such manner and at u. '.a prices as it may determine, any persons and btain any appliances, 1:'Iplements, machinery =, tools • and other means o' eonst_ucti.o., 7,1`Lch it may deem necessary to work at and ba used to complete th-3 eery. herein described, and or such part thereof as said City Council may have designated; also, the power to use such appliances, implements, machinery, tools and means of construction of ever.; dPSeripticn as ma be found upon the line of said work, both such as entered into the completed work, and such as are necessarily- used, ir_ and about the same in the course of construction, and to -,procure other proper materials for the com_�letion of the same, also to charge the expense of all of said labor, materials, appliances, implements, machiner , tools, and means of construction to said Contractor; and the expense so crarZ;ed shall be deducted and paid b- said Cite Council out of such moneys as may be d.ue or to become due at any time thereafter to said Contractor under the contract; or any part thereof. In case such expense is less than the sum waich would have beer. payable under the contract if the same had been completed by said Con- tractor, it is agreed that said Contractor shall be entitled to receive the difference; and in case such expense shall exceed the sum w1nica would have been payable under the contract if the same had been completed by said Contractor, then said Contractor shall pay the amount of such excess to said City, on notice from said City Council of the excess so due. It is further agreed that neither an extension o-_° time, for any reason beyond that fixed herein for the complation of the work, nor the performance and acceptance of any part of the work called for by this contract shall be deemed to be a waiver by said City of the right to assume control of the contract for the reasons and in the manner hereinbefore provided. 10. CANCELLATION OF CONTRACT FOR DEFAULT OF CONTRACTOR: In lieu of the exercise o.° the power hereinhefore given, in case of said Contractor's defay.lt, to --mloy workmen, purchase tools and materials, and complete tae work, said City Council reserves the right and option, instead thereof, to annul and cancel the con- tract and relet the word_, or any part thereof, and said Con- tractor shall not be entitled to any claim for damages on account of such annulment, nor shall such annulment affect the right of the City to recover damages which ma- arise from such failure on the part of said Contractor to fulfill the terms of the contract. And in case of such annulment all moneys due said Contractor, or retained under the terms of the contract, shall be forfeited to said City, and be paid to the credit o'. the Municipal Improvement District No. 7 far_d for completing the im_�rovement of Central Avenue; but such _'orfeiture shall, however, not release said Con- tractor, or his sureties, for the fulfillment of the contract, and said Contractor and his sureties shall be credited with the amount of the moneys so forfeited -coward any greater sum that they may become liable for to said City on account of the default of said Contractor. 11. PAYMENTS: The contract will provide for the payment to the Contractor, on or before the lOth day of each month during the progress of the work, an amount equal to 80`o of the estimated cost o'- the work completed from and including the first day of the preceding month to and including the last day of said month, based upon the unit prices contained in the contract. The remaininE 200 of the cost of the work will b,; retained by the City of Nevrport Beach and paid to the Contractor within ten (10) days after the expiration of thirt�7 —five (35) days from the date of the acceptance of' '-.he work by said City, excepting any sums as ma-1, be lawfully retained under any provisions by the contract or the laws of tie State of California. ` Y 12. EXTRA WORK; No claim for extra work shall be considered or showed unless such extra work ~hall have been previously ordered by the Engineer in writing. The - claims for such extra work, when. • so ordered, shall be presented to said City on or before the 15th day of the month following that in which said extra work was done, otherwise such claims during that month will be forfeited and waived. In case any extra work shall be required in the per- formance of the work contemplated to be done under these speci- fications, it is understood that said Cite reserves the right to have such extra work done by any other parson, firm or corporation than the said Contractor unless an agreement upon the prices to be raid for such extra work can promptly be reached 'between said City and the Contractor. Should said extra work be let to any other person, firm, or corporation than said Contractor, said Contractor agrees that he will not, in any way, interfere with, or molest such person, firm or corporation, and that said Contractor will sus- pend such part of the work herein specified or will carry on the same in such manner as he may be ordered by the Engineer, so as to afford all reasonable facilities for doing such extra work; but said Contractor agrees to make no claim for damages, or for any privileges or rights other than expressed by the contract and these specifications, by reason of the suspension and the doing of such extra work, except for an extension of time to perform the contract, as may be certified to said City Council of the said City by the Engineer in writing and approved bil said City Council. 13. MINOR MODIrICATIORS: The right is reserved to make such minor changes in the plans or specifications as, in the judgment of the City Engineer, may be necessary or expedient to carry out the intent of the contract and no increase in price will be paid the Contractor on account of such changes. 14. PROTECTION OF EXISTING STREET IMOVEMENTS AND PUBLIC UTILITIES: In case it should become necessary at any time during the construction of the work for the Contractor to transport or deposit any machinery, tools, equipment, material, etc., over or upon any streets o:: the City of Newport Beach, or upon any property owned by said City, he must exercise special care in protecting cement concrete pavements, curbs, sidewalks, water pipes, sewers, ornamental street lighting conduits, lighting posts and all other property and utilities belonging to the City of Newport Beach, and an-- damage or injury done by the Contractor or his agents and employees to any or either of said improvements or utilities must be repaired or replaced at the expense of the Contractor, to the satisfaction o'a the Engineer. The repair or replacement must be commenced within _orty —eight (48) hours after notice has been given to the Contractor by the Engineer or Inspector on said work, and prosecuted diligently until completed. Any of said work required to be repaired or reconstructed must consist of materials of the same quality and performed in the same manner as provided in the specifications for the original construction of the work. If the Contractor fails to comply with the notice aforesaid, all money due said Contractor based upon rgonthly estimates of cost of work performed will be withheld until • such time that the Contractor has complied with the provisions con- tained nerein. 15. INTERRUPTION TO TfiAPFIC: The Contractor shall perform all work contemplated under this contract without interference with or interruption to either railroad or highway traffic, electric power lines, telephone and telegraph lines, pipe lines, sewers, drains and any other utilities encountered. —4— The Contractor will be held responsible for any damage to �ri.vate or public proDert?, for delays to railroad traffic, and for intarference o ,_' e.aaa;.ge to highway traffic, and Pe shall save the City harmless _'r ,)m any and all suits or actions which may be brought, and any and all claims which may be made, against the City on account of any such damage or _ delays. 16. ASSIGNII^iQT OF CONTRACT: The Contractor further agrees that he will give personal attention constantly to the faithful pro- secution of the work, and will rot assign or sublet the work, or a.ny part thereof, or any of the moneys or orders payable under the contract, without the previous written consent of the City Council of said City, endorsed on the contract, but will keep the same under his personal control; that no right under the contract and these specifications, nor to any moneys or orders due or to become due under the contract, shall be asserted against said City cr City Council, nor against any of its officers or agents thereof, by reason of any socalled assignment, in law or equity, of this specification; or of the contract, or any part of them, or of any moneys or orders payable thereunder, unless such assignment shall have been authorized by the written consent of the said City Council of said Cite, endorsed on the contract. That no person other than said Contractor has any claim thereunder, and that no claim shall be made excepting under the progaoions of this clause of these speci- fications. —5— „"Ity a TTY 017 I's u'd?0 -'.I B P.GIT _ C_�:t,TF'JRii :n ST. SPECIi ICAT:.ONS YO. 50. FCR GENERAL REQUIREbIENTS. Page SECTION 1. WORK AND Pl; iNS ............................ 1 SECTION 2. EXAMINATION OF GROUND ..................... 1 SECTION 3. SUITABLE A PPLI :uuCES ....................... 1 SECTIOid 4. SETTING SPA KrS ............................ 1 SECTION 5. INSPECTORS . ............................... 1 SECTION 6. MTERIALS AkTD S- 'JjlPLES ..................... 1 SECTIOW 7.' Li; BOR ...... ............................... 2 SECTION 8. PRESERVATION OF kONMdENTS ................. 2 SECTIOd 9. RD14OVING OBSTRUCTIONS ..................... 2 SECTION 1). H EZ; DERS .... ............................... 2 SECTION 11. OBSE -RVIYG CITY ORDII'.NCES ................. 2 SECTION 12. CROSS S TREETS ............................. 2 SECTIOA 13. BARRIERS, LIGHTS, T- M.20RARY BRIDGES, ETC.,. 2 SECTION14. PUBLIC UTILITIES ........................... 2 SECTION 15. NOTICE TO CONT .ACTOR....................... 3 SECTION 16. DEFECTIVE WORK ............................ 3 SECTION17. LOSS M Di, Nip, G2 ............................. 3 SECTION 18. V.:RI_;NCE OP QUANTITIES .................... 3 SECTIOV 19. RESTORiiTION OF STREETS AND SIDE'_32,KS...... 3 SECTION 20. ?ROTECTION 01-7 WORT <'IND CLEANIi G UP........ 3 SECTION 21. JAILORIDLE V ARIiTIOf ....................... 3 SECTION 22. ?IYAL INSPF. CTION .......................... 3 • SECTION 20. FEES aaD i3O AITIES ....................... 4 • SECTION 24. DEI'IdIT IONS ............................... 4 P �W, '9° 1 _ • • • r i CITY OF :3'+P0.7' 's'XK CALIFCRNT A STANDARD SPTCIFICATiOT�S 1w0- 50. FC2 GTIdMAL REQUIR s NTS STCTICN 1. WORM AND PLAid . The Contractor shall, for the price bid, furnish all labor, materials and equiment necessary to executle the work in every respect, in a thorough workmanlike manner in accordance with the plans profiles and specifications and to the satisfaction of the Su ?erintender_t of Streets. All work shall dazing its progress and to its completion, conform to the lines, elevations and grades shown on said plans and pro- files. A copy cf the plans and specifications furnished by the City Engineer shall be kept upon the work at all times during its progress and access thereto shall at all times be accorded the City Zngineei or the Superintendent of Streets. SECTION 2. ^XA,.INATIC�\ Or - &?6''ii�?: Bidders must examine and judge for themselves as to the location of the proposed work the nature of the excavation to be made and the rork to be done. The plans for the work will show conditions as they are supposed. or believed by the City Engineer to exist, but it is neither intended nor to be inferred that the conditions as shown thereon constitute a representation by the city or its officers that such conditions are actually existent nor shall the city or any of its officers be liable for any loss sustained by the C ntractor as a result of any variance 'between conditions as shown on the plans and the ac- tual conditions revealed durinh the progress of the work or other- wise. SECTION 3. SIJITABL3 AP'LIkXC -'.S: The Contractor shall use s,--.oh methods and appliances for the performance o.f the work embraced under these specifications as will secure a satisfactory euality of work and rate of progress. SECTION 4. S =,ITIN3 STAk S: The Contractor shall dive twenty -four 24 hours! notice in writin: when he will reouiie the service of the City En;;lneev for layinG out any portion of the work. The Contractor shall dig all holes necess,�ry for line and Eiyade stakes, and shall areserve all stakes set for line 5rades or measurements of the work in their proper places until authorized to remove them by the City Engineer. Any expense incurred in replacin_ said stakes which the Contractor may have failed to preserve shall be borne by the Contractor. SECTION 5. I_ySP7CT0nS: The Contractor shall prosecute the work only in the presence of an inspector authorized by the Super- intendent of Streets and any work done in the absence of said inspector shall be subject to rej:ction. The Contractor shall furnish the inspector, the City Engineer and the Superintendent of Streets reasonable facilities for obtaining full information respecting the progress and manner of the work and character of the materials. S CTION 5. ;ro',T3.,I;LB iK,N"_' SAMPLES_ All materials must be of specified quality and fully equal to samples where samples are required. The Contractor shall furaish to tk,e City Tpgineer for test whenever requested and free of charge, samples of all materials proposed to be used in the tPrork. Rejected material must be i.r.; ~ediately removed from the work by the Contractor and shall not be brought again upon the work. -1- y . Jxr`y • • • .1 OTT I B parson employed 3n to perform the wend[ charged immodia.toly the work. any skpeviiAto,rtur.t, rroman, laboror or o t'iier uho -ork by the Contractor, v.,ho faias or - ofuses in the mani.or specified herein, shall be dis- a:id such person shall not again by employed on SECTION 8: PRESERVATION OF i +CEMENTS: Tile Contractor shall not dis- turb any monuments or stakes iounl on the line of the improvements without Permission from the City Engineer, and he shall bear the eapenso of rosettinE any monuments or stakes which may be disturbed without permission_ SECTION 9. REMOVING OBSTRUCTIONS: The Contractor shall remove trees where required by the plans of or whero the proper completion of the work requires their removal. The Contractor shall also remove all stone, debris or other obstructions, of whatever kind or char- acter, encountered'. in making the improvements. SECTION 10. HEADERS: Whenever th,.pavemer_t to be laid does not terminate against a curb, gutter or other pavement, the Contractor shall provide and set upon the line of termination a header of sound plank, two (2) inches in thickness aril of a width not less than the thickr.oso of the pavement. The top edge of the plank shall conform to the cross - section of the finished street. Sail headers shall be considorel a necessary part of the pavement and shall remain in place whon the work is completed and accepted. SECTION 11: OBSERVING CI "iY OR.DIN lICES: The Contractor shall observe all the ordinances of The City of Newport Beach in relation to the obstruction of streets, keeping open passageways and protecting the same where they are exposed ani would be dangerous to travel. SECTION 12. CROSS STREETS: No two consecutive cross streets shall e closoi at any one time. SECTION 13: BARRIERS, LIGHTS, TEMPORARY BRIDGES, ETC.. The Contractor shall eroct and keep erected, by night ani day, a fence or proper barrier along the line of the work and across the ends of the same in order to guard the public effectively from danger of falling into trenches or from upsetting their vehicles against the earth thrown up luring the progress of the work, and he shall post all proper notices and signals to the public of the state of the streets while the work is in progress. A rei light must be maintained at night at each end of the barrier from sunset until sunrise. He shall provide and maintain all necessary detours ani temporary bridges. SECTION' 14: PUBLIC UTILITIES. In case it should be necessary to move the property of any owner of a public utility or franchise, such owner will, upon proper application by the Contractor, be notified by the Superintendent of Streets to move such property within a specified reasonable time, and the Contractor shall not interfero with said property until after the expiration of the time specified. The sisht is reserved to the owners of public utilities and franchi.sos to enter upor_ the street for the purpose of making; repairs or changes of their property male necessary by the work. The City of Nuviport Beach shall also have the privilege of entering upon the street fcr the purpose of repairing sewers, and water pipes, or making house connections therewith, or repairing culverts or storm drains. -2- ,ff - x. CECTICN 15: NOTICE TO CONT- RU.0T0It: .:totico of any imp.rfections in • the world to anv foreman or agent in charge of any portion of the work, in the absence of the Contractor, shall be considered as • notice to the Contractor, SECTION 16:,3)EFECTIVE WORK:. No work which is defective in its construction.or deficient.in any of the requirements of these specifications will be considered as accepted in consequence of the failure of any officer of the city or inspector.connected with the work, to point out said defects or deficiency during construction. The Contractor shall correct any imperfect work, whenever discovered, before the final acceptance of the work.., SECTION 17: LOSS OR DAMAGE: All loss or damage arising from any unforseen obstruction or difficulties which may be encountered. in the prosecution of the work or from any action of the elements prior to the acceptance of the work,.or from any act', or omission not authorized by these specifications, on the part of the Con —. tractor or any agent or person employed by him, shall be sustained by the Contractor. SECTION 18: VARIANCE OF QUANTITIES; The Contractor assumes all risk of variance in any computation or statement of amounts of quantities necessary to complete the work required by the contract and agrees to furnish all necessary labor and materials to fully. complete said work in accordance with.the plans and specifications and to the satisfaction of the Superintendent of Streets. SECTION 19, RMIORATION OF STREETS AND SIDEWALKS. Where trenches are excavated in streets which,are paved, macadamized, oiled or otherwise improved, the pavement or surface thus.removed shall be replaced by the Contractor in a.workmanlike manner and in ac- cordance with the specifications under which the street was originally improved. Unless.otherwise provided, the Contractor shall re- place and repair any damage to sidewalks, cross — walks, curbs and gutters resulting from trench excavation prior to the acceptance of the' work.' SECTION 20: PROTECTION OF.WORK AND CLEANING UP: .Thq Contractor shall care for all work until final completion and acceptance of the whole. All damage done to existing improvements by the Con- tractor shall be repaired by him. He shall remove all.surplus material and rubbish from the work after its completion and be- fore he makes application for the acceptance of the work. SECTION 21: ihLLOWABLE VARIATION: When, in these specifications, a maximum.of minimum, either in size, percentage or'thickness, or relating to quality or character or other matter, is allowed or proscribed, the work shall be accepted as in compliance there- with if within such maximum or minimum so allowed. • SECTION 22: FINAL INSPECTION:. The Contractor shall.notify the Superintendent of Streets when he desires a final inspection of • the work. The Superintendent of Streets will as soon thereafter as possible make the necessary examination.. If the.work is found to be in compliance with these. specifications, the Superintendent of Streets will furnish. the Contractor with a certificate to that effect. MM : , 1*-�. 0 • _• SECTION 23: FEES d:vD ROYALTIES. All fees or royalties for any patentes invention, article or arrangement in any manner connected with the work, or with those specifications, shall be included in the price state! in the proposal, ani the Contractor shall protect ani ho13 the City harmloss against any ana all iemanis or claims for such fees or royalties, whether such lemanis or claimsare filol luring the life of the contract or after its completion. SECTION 24: DEFINITIONS: Whenever the wort "City" is usos in the specifications, it refers to the City of Newport Beach, California. Whenover the word "Contractor" is used in the specifi- cations, it - refers to the party or parties of the secons part in the agreement for the construction of the work herein specifies. Whenever the woris "Superintonient of Streets" and "City Engineer" are used in the specifications, they refer, respectively, to the Sup�)rintcnient of Streets ani the City En- gineer of the City of Newport Beach, Caliornia, or their authorizei agents or inspectors. —4— 1 1 • CI'il CF 3i.-CH • a CALIFORNIA STy"ID :.RD S ?ECIc Get MS NO. 51. IV. GE'_: ENT CONCRETE PluiTERIALS ANBD .REIIINFORCING STEEL, PAGE SDOTIO:i 1. ?CRTIZfD CuiIENT ......................... 1 & 2. SZCTIOW 2. S.t isD ..... ............................... 2. 320ION 3. ROCK ..... ............................... 3. SLCT'ION 4. Prat Gzu:V L FOR CONCRETE ................. 3. SZCT iON 5 • METHOD OF D TyRv:Ii ING FINENESS MODULUS . • 3. Si,C'E'IGN 6. RxTTLER TEST ............................ 3 & 4. SM- IO.; 7. N TER ................................... 4. SIMIOd B. JOINT FILLi;R ........................... 4. SLCTION 9. REIlgrO,CI',TG STMU ....................... 4. SECTION 10• STORING MATERIALS ...................... 4. • • 1 � CITY OF NEWPORT BEACH • CALIFORNIA STAiTDr=.D. SPECIFICATIONS NO. 51. FOR • C LENT CONCRETE NATIRIALS AND REIN 0RCING STEEL SECTION 1. PORTLAND Cr'1214T (a) All cement used shall be Portland Cement and must conform to the following requirements and be subject to the follow- ing test which will be open to the Contractor. Samples for test may be taken from every package delivered or proposed to be used upon the work, and unless they meet the requirements herein speci- fied, such package or packages of cement will be rejected. All cement shall be true Portland Cement. No cement will be accepted, tested or permitted to be used unless delivered in the original unopened packages, filled at the cement mill and with the manufacturer's name and the brand of the cement plainly marked thereon. If delivered in sacks, each sack must contain not less than ninety -four (94) pounds net of cement, Such sacks of cement rust be uniform in weight and the sacks shall be whole and untorn. If delivered in wooden or metal barrels, the content must be three hundred and seventy -six (375) pounds net of cement. The cement must be dry and free from lumps. No cement shall be used which has been mixed in any way with any.other brand or quality of cement or which has been tam- pered with in any way after having been placed in the original package of the manufacturer, nor shall any cement be used from reground. To prevent sifting or loss of weight, and for pro- tection from moisture, all cement that has been transported by water must be in paper lined cloth sacks, or in barrels made of wood or metal. The paper liners used inside the sacks :rust be stout and damp - proof, and may be either open moulacd o; of the sealed typC with valves for filling. All cement shall meet the specifications and be tested in accordance with "Standard Specifications and Testa for Port- land Cement ", Serial Designation C9 -26, adopted and revised by the American Society for Testing Material and on file in the office of the City Clerk of the City of Newport Beach, and when tested as above shall meet the following requirements. (b) FINENESS: The residue on a 200 -mesh screen shall not exceed twenty -two (22) per cent. by weight. (c) SOUNDNESS: A pat of cement paste about three (3) inches in diameter and one -half (z) inch in thickness at the center, tapering to a thin edge, stored in moist air for twenty- four (24) hours, and then kept in an atmosphere of steam at ninety- eig:_t (98) to one hundred (100) degrees Centigrade, for • five (5) hours, shall snow no signs of distortion, cracking, check - ing or disintegration. (d) TIME OF SETTIM The cement shall not develop initial set in less than forty-five NO minutes when tested with a Vicat needle, nor in less than sixty (60) minutes when tested wits a Gilmore needle. Final set shall be attained within ten (10) hours. (e) TENSILE STRENGTH: The average tensile strength in pounds per square inch of not less than three (3) mortar briquettes, composed of one (1) part, by weight, of cement and three 3) parts, -1- "Yri of standard Ottr,wa sand, W,1 not ba 7.css than the following: lcsU S_ tow _ f Briqug_ tt a Pounds nor .,g. In. 7 days. 1 day in moist a.ir, 6 days in water. 225 Ask 28 days. 1 day in moist air, 27 days in rra.tar. 325 When the cement is of a brand not previously tested or where :previous tests have fallen below the requirements herein set forth, such cement shall be held in storage until the 20 days tCst can be completed. Work in which cement has been used which subsequent test show to be not in conformity with the require- ments herein set forth, shall be reconstructed. Cement shall be received or th3 job in sacks filled at the cement factory and each containing not less than ninety - four (94) pounds net weight of cement. SECTION 2. SAND: Sand shall be a natural sand having clean, hard, durable, uncoated grains, and shall be free from shade, oil, organic matter, alkali, or other deleterious substances. Sand shall be thoroughly and uniformly washed. Sand must not contain more than three (3) per cent. by weight, of clay or silt and shall not con- tain more than three (3) per cent., by weight, of mica. Sand must have a fineness modulus of not less than 2.50 nor more than 3.20 when determined as hereinafter specified, and shall meet the following requirements as to size: Passing 1/4 inch screen .......... 95 to 100 %. Passing 30 mesh screer ........... 15 to 30 %. Passing 100 mesh screen .......... 0 to 6 %. Screens to have square openings and percentages are by weight of d-ry material. Sand shall be tested for organic matter in the follow- ing manner: A 12 -ounce graduated prescription bottle is filled to the 447ounce mark with the sand to be tested; then there is poured into the bottle a three (3) per cent. solution of Sodium Hydrox- ide until ;y:ie volume of sand and solution, after shaking amounts to seven ounces. The bottle is then shaken thoroughly and allowed to stand for twelve (12) hours. If at the end of this time the liquid above the sand is darker than a light yellow Color, the sand will not be permitted to be used in the concrete. An average of three (3) briquettes, one (1) inch square in cross- aection, made of one (1) part Portland Cement, conforming to the specifications and three (3) parts of sand, shall attain a minimum tensile strength in seven (7) days equal to ninety (90) per cent. of the average tensile strength of three (3) like brigi�attas of the same proportions, made with the same cement and Standard Ottawa sand. • SAND TO BE USED FOR CEMENT MORTAR FINISH: Not more than six (6) per cent. minus the per cent. of silt, loam, clay, etc. determined by test for Organic Imp•.,:ities shall pass a No. 100 sieve. Not Less than seventeen (17) per cent. and not more than forty -two (42) pea., cent. shall pass a. No.. 30 sieve. All shall pass a No. 4 sieve. -2- SECTION 3. ROCK: . Roc': shall consist of sound cr'.iUh;,d cc;- u?' '7r. p'a`led. gravel, or a combination of both. It shall. b froo f-olr . dirt, mud., stone, C�*ust, organic ;hatter, oil, or other deleterious S'J:ustances. It sliall contai^ no "oft, flat, or --long .ted pieces. Rock shall be sound, olcan, '.lard, tough, durable material and • shall not con' 'Uc.i_i mor•a than one (1) per cent. by weight, of clay or silt. Rock s.all be uniformly graded between the maximum and mininwn sizes specified. Prot more than t+ao (2) per cent, by weight of the rock s:ha.11 hr.ve a maximum dimension more than fifty (50) per cent. greater than the largest screen size specified therefor and shall have a specific gravity of not less than 2.60 nor more than 2.70. SECTION 4. PEA GRAVEL FOR CONCRETE: Poe. gravel shall be sound, washed gravel, clean, hard, tough, durable material Free from vegetable or other deleterious substances. It shall be free from dirt, mud or stone dust. Pea gravel as furnished shall be uniformly graded ro.n the largest to the smallest screen or sieve sizes given below, and in addition shall confor.r, to the following screen tests: (a.) All shall pe.ss a screen having z in, square openings. (b) Not less than 95 per cent by weight, shall pass a screen having 3/8 inch squara openings. (c) Not less than 40 per cent r..,nd not more than 60 per cent by weight, shall be retained or. a 4 -mesh sieve having square ope'nin s �. d) Not more than 10 per cent, by weight, shall pass a 14-mesh sieve with square openings. Pea gravel shall not show a loss of more than thirty - two (32) per cent, when subjected to the rattler test hereinafter specified. SECTION 5. METHOD OF DETERMINING FINENESS 11ODULUS: The fineness modulus of the sand or rock shall be determined by a. sieve anal- ysis, using the following sizes of standard sieves: 100 mesh, 48 mesh 28 mesh, 14 mesh, 8 mesh, 4 mesh, 3/8 inch mesh, 3/4 inch, and 12 inch mesh, screens to have square openings. The sum of the percentages, by night, of the material retained on each of the above standard. size sieves divided by 100 is the fineness modulus of the saterial. SECTION 5. R9TTLER TEST: At leant thirty (30). pounds of the mater- ial to be tested shall be available for the test. Each sa::iple when ready foe the rattler shall consist of five (5) kilograms . (eleven pounds) of said dry material; all shall pass a 2 -inch screen, sixty (60) per cent, oy weight shhall be retained on a. 3/4- • inch screen, and all shall be retained on a z -inch screen. The said sample shall be tested in a rattler, consisting of.a metal cylinder twen{;y-eight (28) inches in diameter, and twenty (20) inches in lengt� longgitudinally mounted on a horizontal shaft and having a shelf "our (4) inches wide extending from end to end. During the test the rattle shall be revolved at a rate of between twenty- eig'at (28) and thirty (30) revolutions per minute. A charge for the rattler shall consist of the said five (5) t:ilo- cFam sample and fourteen (14) cubical blocks of cast iron measur- ing about one and one -'calf (VT) inches in each dimension, and having a weight of five (5) kilograms. After receiving the charge the rattler Gall be given five hundred (5,00) revolutions. The -3- sam -ole shall tflcil be scre -3ned and the portion by rei -Ilt which till pass a 10-mesh ucreea shall be considered and designated as . the loss. SECTIOIJ 7. WATT,^_: Wator shall be clean, free £Tom oil, acid, alkali o.• vegrt,?ble matter:. If the Contractor elects to use city water, arra.ngeia.:..nts must be made with the "later Superinten- dent. SECTIOF a. JOIIiT FILLER: Th-_ filler for all expansion and contzaetion joints shall consist of composition board made of two layers of paper or felt and a filler of asphalt or composition board made of fibre permeated with asphalt. The thickness of the composition board shall be as hereinafter specified or as shown on plans. The quality of the asphalt shall be such that it will not become soft in warm weather or brittle in cold weather. When it is necessary to splice the joint filler it shall be laced or clipped togethar in a workmanlike and effective manner. When in storage on the work, all joint material shall be laid flat on plank. SECTION 9. REINFORCING STEEL: Steel shall be made by the open hearth process and shall be of uniform quality. It shall contain not more than. five-hundredths (.05) per cant. sulphur; if made by the acid process it shall contain not more than six- hundredths (.06) per cent. phosphorus, and if made by the basic process not more than four - hundredths (.04) per cent. phosphorus. Whon tested in specimens of standard form, or full sized pieces of the same length, it shall have an ultimate tensile strength of fifty -five thousand (55,000) to seventy thousand (70,000) pounds per square inch; an elastic limit of not less than one -half (2) the ultimate strength, and a minimum percentage of elongation in eight (S) inches of one million, two hundred and fifty thousand. (1,250,000) divided by the ultimate strength. Test specimens shall. bend cold through one hundred and eighty (180) degrees around a pin without cracking on the outside of the bent portion, the diameter of the pin being eoual to the thickness of the specimen if less than three - quarter (3/4) inch, and being twice the thickness of tho specimen if three - quarter (3/4). inch or larger. Reinforcing bars s;ia.11 be free from flaws, cracks, mill scale, oil or.paint. All reinforcing bars shall be square deformed bars unless otherwise specified. SECTION 10. STORING MATERIALS: ti9han cement is stored on the work it shall be suitably protected at all times from exposure to moisture until used. Sand and rock shall not be stored on the subgrade. -4- • • l CJ.T` OF' NEWPORT BEACH CA TYORN7.A STANDARD SPECIFICATIONS NUBMER 65. FOR CEMENT CONCRETE.PAVENENT. `.ffmu SECTION I. PLANS ........................ 1 SECTION 2. GENERAL REQUIREMENTS......... ?. SECTION 3, WORK ......................... I SECTION 4. GRADING- .................... 1 SECTION 5. MATERIALS .................... 3 SECTION 6. CENI-ENT CONCRETE .............. 3 SECTION 7. CONSTRUCTION OF PORTLAND CEMENT CONCRETE PAVEMENT:.... 6 0 CITY OF NEWPORT BEACH i CALIFORNIA . STANDARD SPECIFICATIONS NUMBER 65. FOR CEMENT CONCRETE PAVEMENT. SECTION.1. PLANS: The detailed location of the work to be done, together with grades, cross — sections and special construction, is illustrated on the maps, profiles, cross — sections and plans adopted therefor by the City Council, and on file in the office of the City Engineer. These maps, plans, profiles and cross — sections are to be considered a part of these specifications, and any notations appearing the�reon shall be considered as though in- corporated as a part df these specifications. All distances and measurements given are in a horizontal plane. All work shall, during its progress and on its completion, conform to the lines and levels which may from time to time be given by the City Engineer. SECTION 2. GENERAL REQUIREMENTS: The general requirements shall conform to Standard Specifications No. 50 for : "General Requirements" SECTION 3. WORK: The work to be done consists of the following: (a) To excavate or fill in the area upon which the pave- ment is to be constructed, to such an extent and in such a manner as may be required by the maps, plans, profiles, cross— sections and these specifications. (b) To construct thereon the pavement as provided for on the maps, plans, profiles, and cross— sections. (c) To furnish all material and labor necessary to perform said work and to complete same. (d) Removing from the street and sidewalk adjacent to the work, all surplus material or debris. SECTION 4. GRADING:. (a.) GRADING AREA: Unless otherwise specified by plan, reso- lution or ordinance,.the street shall be graded from property line to property line along portions of the street upon which pavement is to be constructed, excepting no grading need be done between curb and property line along such portion of the street where curb and sidewalk have already been constructed. The roadway between curb lines shall be brought to the subgrade required by the plans or these specifications. The spaces between the curb lines and the property lines.in cases where no aidowalks are to be constructed shall be graded to a plane rising at a rate of one (1) inch in four (4) foot from the established grade at the curb line. Side slopes of cuts and fills shall be neatly and accurately trimmed to true cross— section. (b) ROUGH GRADING: Rough grading shall include all filling and removal of excess earth, stone, trees, old pavements, curbs, sidewalks, driveways, culverts, and any other structures or foreign materials that may be encountered in preparing the street for the improvements to be,made.• oy t Plowing or excavating sound material shall not be done to a depth greater than six (6) inches below subgrade. • On any street where the improvement of the roadway is . specified, the rough grading in any block shall be completed and the surface leveled up approximately to final subgrade or grade before the construction of any cement work is begun in such block. E:aeavated material not required for fills shall be removed from the street as soon as excavated. All material removed to facilitate construction shall be replaced to grader FILLS: The space over which fills are to be made shall first be cleared of all brush, trees, stumps, timber, trash or debris. All filling shall be done with good sound earth, sand or gravel, and no oil cake or other lumpy material, or material of a perishable, spongy or otherwise improper nature shall be used in filling. Fills shall be made as the Engineer may direct, either by flooding or rolling. For rolling, the material exceeding one (1) foot in depth before being leveled'offi shall be thoroughly moist throughout, shall be rolled with compression of at least four hundred tire. shall be placed in layers not rolling. Each layer, after dampened, and while still a ower roller having a &00; pounds per inch width of When flooding is reqguired, the material shall be brought up in layers not exceeding four (4) feet in depth and each layer thoroughly flooded with water and barred. No fills shall be widened by dumping loose material over their slopes. When a fill is to be widened, the new material shall be bonded to the old by cutting steps into the existing slope and by bringing up the layers as specified above. MUD AND SOFT MATERIAL: -When an area of mud, or other soft or spongy material is encountered, it shall be removed and the space filled with gravel or good earth, which shall be placed in layers and rolled as hereinbefore set forth for fills until the surface ceases to move or creep under the roller. The Contractor will not be required in suah cases to excavate mud or other soft or spongy material to a depth greater than two (2) feet below grade. Where such a soft spot is caused by a leak in water main or pipe, the soft material shall be excavated down to the pipe and after the pipe has been repaired, the excavation shall be back — filled with good material properly tamped or rolled. When- ever any area is too wet to permit of thorough rolling or tamping the Contractor shall wait until the material has dried sufficiently and then complete the rolling or tamping. (c) SUBGRADE: After the rough grading has been completed, the surface of the subgrade shall be brought to the required grade and cross — section, and the subgrade prepared as follows: After a block or section has been graded to approx- imate grade, the surface of the roadway shall be thoroughly cult- ivated to a depth of not less than ten (10) inches, 4nd all rocks four (4) inches in diameter or.Larger, and all rubbish shall be removed. During or after cultivation, water shall be applied until the moisture has penetrated to the entire depth of cultivation. —2— i The roadway shall then be thoroughly rolled with a power roller weighing not less than twelve (12) tons, until the . surface ceases to move or creep under the roller. All depressions shall be filled with good earth. After the first rolling, the subgrade shall be thoroughly cultivated to a depth of not less than four (4) inches and water applied during cultivation until a uniform dampness of four (4) inches is secured. The Street Superintendent may re- quire a disc cultivator for work in clay or adobe soils. While .the subgrade is still moist, it shall be thoroughly rolled with a power roller weighing not less than twelve (12) tons until the surface is firm and unyielding and ceases to move or creep under the roller, and until it is brought to true grade and cross — section. After the final rolling, as specified above, the fill- ing of low places will not be permitted. Portions of the roadway which cannot be reached by roller shall be tamped solid. When a grade has been prepared and checked and found to be low, it shall be loosened up with a harrow or disc before any additional layer of earth is placed thereon. Subgrade which has been checked and approved must be re— rolled, re— checked, and approved after a rain storm. If the subgrade consists of sand, the rolling there- of will not be required, but it shall be compacted by thoroughly wetting down and smoothed to conform to cross — sections. (d) CONDITION OF STREET DURING GRADING: During the grading the surface of the street crossing shall be maintained in a reasonably good condition for traffic. Proper drainage must be maintained at.all times. Where there is a car line, suitable landing places shall be left for passengers as long as possible. (9) CITY ENGINEER TO CHECK GRADING! The Contractor shall notify tho City Enginoor when a block or a section has.bo„n brought to subgrado, whereupon the latter will chock the elevation and condition of the same. If the work is found to be in accordance with the specifications and grades givon, the contractor shall pro- ceed as hereinafter montionod. . SECTION 5. MATERIALS: Cement, sand, gravel and rock shall con- form to Standard Specifications No. 51 for "Portland Cement ", "Sand ", "Gravel" and "Rock" respectively. WATER: Water shall be clean, free from oil, acid, alkali or vegetable matter. SECTION 6. CEMENT CONCRETE: (a) PROPORTION: The concrete to be used in constructing the pavement herein specified shall be composed of the following materials, and in the following proportions, to —wit. 1. One sack of cement weighing ninety —four (94) pounds. 2.. 535 pounds of dry mixed aggregate, 15 per cent by weight of which must be retained on a 1" screen having square openings. 3. Not more than 6.0 gallons of water, which will in- clude the water in the aggregate. The percentage of rock and the percentage of sand con- tained in the above mixed aggregate shall be determined by the —3— f p`S i ".ollowing formulas; — C (A- -K A —B D 100 — C Where A is the fineness modulus of the rock. B is the fineness modulus of the sand. C is the po:ecentage by weight of the sand in the mixed aggregate when dry. D it the percentage by weight of the rock in the mixed aggregate when dry. K = 5.80 when 15 per cent or more by weight of the dry mixed aggregate is retained on a 1 inch screen with square openings. K e 6.2 when 15 per cent or more by weight of the dry mixed aggregate is retained on 'a 1j inch screen with square openings. K e 6.5 when 15 per cent or more by weight of the dry mixed aggregate is retained on a 2 inch screen with square openings, or when 25 per cent or more by weight of the dry mixed aggregate is retained on a 12 inch screen with square openings. The fineness modulus of the rock and of the Sand shall be determined in accordance with.5tdnda,rd Opodificatious NO. 51 v£ tho Eitq of HoTiporl Beach. 1ho.:weights of mixed aggregate above specified are for dry material and the weight of the moisture con- tained in said material must be deducted in order to obtain the weights above specified for dry material. Determinations for finangtis' modulus and moisture will be made by the City Engineer and will be open to the contractor. Each cubic yard of concrete in place shall contain not less than six (6) sacks of cement. (b) MEASURING MATERIALS: The sand and rock shall be kept in separate bins, compartments or piles, and said materials shall be carefully weighed in the proportion specified by means of mul- tiple beam or dial scales. The Contractor will not be permitted to deposit or store any sand or rock on the sub— grade, but the concrete material, after being weighed, must be discharged directly into a truck or wagon and from there discharged directly into the skip of the concrete mixer. (c) MI$ING CONCRETE: Machine mixing of concrete shall be done with mechanical batch mixers only, which shall be equipped with an automatic timing device so constructed that it is put into operation when the mixer skip is raised to its full height and shall ring a bell and release the discharge lever after the specified time of mixing in the drum has elapsed. The water tank on the mixer shall be so arranged that the amount os water required for each batch of concrete can be positively and accurately measured and while the water tank is dis- charging the inlet supply shall be automatically cut off. —4— N i r Mixers shall be of the boom and bucket type, in which the concrete is conveyed from the mixer in a bottom dump bucket and deposited upon the subgrade, No chuting of concrete will be permitted. • All pick —up and throw —over blades in the drum of the mixer which are worn down three— r�uartern (3/4) of an inch or more must be replaced by new blades. The drum of the mixer shall revolve at a rate of speed not to exceed the rated speed specified by the maker of the mixer provided, however, that the drum shall make not less than ten (101 nor more thari eighteen (18) revolutions per minute. The Contraoto=s shall mix in the mixer only such quan- tity of material as will in the opinion of the Street Superin- tendent be within the capacity of the mixer without spilling, based on the water level capacity of the drum, but in no case shall the amount mixed exceed the manufacturer's catalog rated capacity. No splitting of sacks of cement will be allowed in mixing concrete, and every batch of concrete shall be mixed in the drum of the mixer not less than seventy (70) seconds before any portion of the batch is discharged from the said drum. The drum shall not be charged while mixer is discharging.. In mixing concrete, the materials shall be mixed with sufficient water to produce concrete with a slump not to exceed two (2). inches when tested by a truncated cone form. The test cone to be used in making the slump test shall have an inside diameter of eight (8) inches at the base and an inside diameter of four (4) inches at the top, and a perpendicular height of twelve (12) inches. Immediately after the concrete has been mixed and deposited on the sub — grade, a sufficient quantity thereof shall'be placed in four layers in the tapered test cone until the concrete is flush with the top of the cone, each layer shall be thoroughl, settled by working with a pointed iron rod. Then the test cone shall be lifted, allowing the concrete to settle or slump. After the pile of concrete has set one (1) minute, its height shall be measured and subtracted from the original height of twelve (12) inches, which difference in height is the amount o the slump in inches. No concrete shall be used which has paritally set and no concrete shall be retempered or remixed. SECTION 7. CONSTRUCTION OF PORTLAND CEMENT CONCRETE PAVEMENT• — Portland cement concrete pavement shall consist of concrete pro- portioned and mixed as hereinbefore set forth. Where the area of pavement to be laid is more than one thousand (1000) square feet, a concrete mixer must be used. The thickness of finished pavement shall be as shown on the adopted cross — section and as required by resolution or ordinance. (a) FORMS: Before placing forms the earth beneath them shall be excavated to the proper grade, and shall be hard and com- pact. Forms shall have full bearing upon the earth throughout their length. The top edges of all forms shall conform to the grades and cross sections of the surface of the pavement. Side forms of timber or steel must be used. They shall be placed with exactness to the required grade and alignment of the top edges of the finished pavement and be so supported during the entire operation of placing, tamping and finishing the pavement —5— that they will not at any time deviate lat rally nor at any time deviate vertically more than one— quarter (�) inch from the proper line. • When side forms are used more than once, only straight forms shall be used and all warped forms and split timber forms shall be discarded. Before being placed, all forms shall be thoroughly cleaned. Timber side forms shall be I4o. 1 common Qregon pine or white fir. They shall be not less than two (2) inches thick, and at least sixteen (16) feet long, and their depth shall be at least equal to the specified depth of the edge of the pavement. If the Contractor so elects, he may have the timbers sized, but the depth of such timbers, after sizing, shall be not less than the above specified dimension, Their shall have square top edges, s quare butt joints, and shall not contain enough knots or other imperfections to impair their strength. They shall have no wane on the edge to be placed uppermost, and shall be straight. Timber side forms shall rest upon two (2) inch by three (3) inch stakes, spaced not greater than four (4) feet apart, driven with their tops to the line and grade for the bottom of the side form. Stakes for nailing on the outside shall be placed not more than four (4) feet apart at the intermediate points. Timber side forms shall be secured by side stakes not less than three (3) inches in width, one and one —half (1J) inches in thickness, and not less than eighteen (18) inches i.n length. The length of stakes shall be increased when the character of the soil will not give sufficient bearing to an eighteen (18) inch stake. Side forms shall be staked at intervals not greater than four (4) feet.and the tops of the stakes shall be one (1) inch below the top edge of the side forms. Side forms shall be spliced with a section of timber two .(2) feet in length, one (1) inch thick and six'(6) inches bride, which shall be nailed lengthwise, lapping the joints. Side stakes shall be securely nailed to the forms. Metal side forms for this work shall be straight, flee from warp, of heavy section, with sufficient rigidity to prevent springing during the placing and tamping of the concrete. Their depth shall be equal to the specified depth of the edge of the pavement. Metal side forms shall be supported at each end by a two (2) inch by three (3) inch stake, driven with its top to the line and grade for the bottom of the side form. Metal side forms having a bottom flange less than six (6) inches in width shall rest upon stakes, as above provided, spaced not greater than five (5) feet apart. Metal forms shall be staked firmly by means.of steel stakes s, aced not greater than four (4) feet apart and shall be so designed that stakes may be driven through the base of the form and locked in position. Forms in which the stakes merely hold down the edge of the form will not be approved. Form joints shall be so designed that a perfect support is obtained and in case joints c?0 not. furnish such support the Contractor shall be required to either substitute acceptable forms or, with the approval of the Street Superintendent, wedge the forms with wood and provide double ,gupporting stakes underneath the ends. —6— r � 'Ide forms must be trued up and maintain�;a to the re- quired line aud. grade in advance of .lacing concrete for a dis- tanco of one day's run of tho mixer, and the Contractor shall provide expert side form men for this purpose. when side forms do not conform to the correct line and grade, or have become loose, this shall always be considered suficient cause to stop the work, until the fault is corrected. Timber forms shall be left in place as a part of the fin- ished work except where the pavement terminates against a curb, gutter, building, or another pavement, in which case the forms shall be removed immediately after striking off and tamping the surface of the pavement as hereinbefore specified and the spaces left thereby immediately filled with concrete and finished with a float smooth and true to grade and adopted cross — section. Whenever the pavement does not terminate against a curb, gutter, building, or other pavement, the Contractor shall pro- vide and lay upon the line of said termination, a header of sound plank two (2) inches in thickness, and of a width not loss than the thickness of the pavement. The top edge of the plank shall conform to the street cross — section when finished. Said headers shall be considered a necessary part of the pavement and shall remain in place until replaced by permanent improve- ment', unless otherwise noted on the plans for the pavement. Side forms, except the false forms set against curbs or buildings, must remain in place for at least twelve (12) hours after placing the concrete. All forms shall be oiled or set immediately before con- crete is deposited against them. . (b) PLACING: The concrete shall be spread to the re- quired depth upon a thoroughly dampened subgrade prepared as here- inbefore specified. On roadways twenty (20) feet or lees in width, the con- crete shall be laid across the entire width of the roadway in one operation unless otherwise specified on said plans. On roadways more than twenty (20) feet and not exceed- ing fifty (50) feet in width, the concrete shall be laid across one- half (2) the width of the roadway in one operation, A joint being made along the center line of said roadway by using an intermediate form along said center line, unless otherwise specified on said plans. On roadways more than fifty (50) feet wide, the width of concrete to be laid in one operation shall be as particularly designated upon said plans. The subgrade shall be thoroughly dampened immediately ahead of the placing of the concrete, but no pools of water or chopped up subgrade will be permitted. Whenever it is necessary to stop the mixing and placing of concrete for a period of thirty (30) minutes, or longer, a header shall be set at tight angles to the center line of the street and extending across the full width of the pavement and the concrete shall be brought to a square joint. A steel shod wooden subgrade templet tmrV -.*C the true crown and shape of the surface of the subgrade shall be used behind the mixer and in front of the placing of the concrete. This templet —7— OW s � ohall ride upon the L3 de forms and a7.1 high portions of the subgrade shall be mae.e to conform to it. The filling in of low apots in the • ,- .bgrade with loose material will not be permitted except as here - i..nbefore provided. • Tine concrete shall be thoroughly spaded against the forms and joint filler. (c) FI14ISHING: By means of templets, belts, floats, trowels and such other implements as may be necessary, the concrete shall be brought to a solid; compact mass and to a true, uniform aria dense surface covered with mortar and conforming to the required grade and cross— section. This surface shall be free from any un- evenness greater than one — fourth (4) inch measured from a straight edge fifteen (15) feet in length placed on the surface of the pave- ment parallel to the center line of the street, except at street or alley intersections or other places not intended to be straight lines. Finishing shall be done in the following manner, unless oth0rrise erecifiea on said plans:— 1st. Immediately after placing the concrete upon the subgrade and before the initial set has taken place, the concrete shall be struck o--,'f and tamped until it has become a solid, compact mass, by means of a templet or mechanical tamper used at right angles to the center line of the street. In places where the mechanical tamper or templet above specified cannot be used, such devices and methods shall be used as are necessary to bring the concrete to the required grade and cross — section and to insure a solid, compact mass and a true and iniform surface. Excess con- crete shall be removed and any.low places in the surface of the concrete shall be filled with sufficient concrete to bring the surface to the required grade. The tamping templet shall consist of a heavy plank, the length of which is not less than the width of the pavement to be tamped, nor greater than the width of the pavement to be tamped, plus one (2.) foot. The tamping surface of the templet shall be shod with a heavy strip of metal and shall conform to the cross — section of the pavement. It shall be constructed so as to be rigid and prevent sag. If a mechanical tamper is used, it shall be an approved automatic tamping or kneading and finishing machine operated by a man experienced in the handling of the particular make of machine in use, and operated at a speed not to axeeed that recom- mended by the manufacturer.. The subgrade templet, tamping templet, and tamper boards of the mechanical tamper shall, at frequent in- tervals of time be tested for shape. In making these tests the templet and tamper boards shall be placed in the same relative position that thee' occupy when in use, and in no case shall they be tested when turned upside down. In case they deviate from the re- quired cross— section, they shall be immediately corrected. If the proper correction can not be made, they shall be discarded and new • ones placed in service by the Contractor. After tamping, as above specified, the surface of the pavement shall be thoroughly floated with long handled wooden floats and this operation shall be continued as the Street Super- intendent may direct. 2nd. A straigght edge float not less than fifteen (15) feet nor more than twenty (20) feet in length with a troweling or smoothing surface not less than six (6) inches nor more than ten (10) inches in width, shall then be used on the surface of the concrete with its length parallel to the center line of the street and operated from bridges, with a combined longitudinal and trans- verse motion, planing off the high places and filling in the depressions.. —g- a MW Al 4 During the forward progression of the floating operation ,ae longitudiiiF.l float rm�st not be advanced over two -- thirds of • it:, length, giving a lap of one -third the length of.the float. Imo, after such -planing, low places are discovered in • the surface o' the concrete, additional concrete shall be added to fill in and bring said low places to grade. The use of the longitudinal float will not be required in street intersections or other inaccessible places. 3rd. The surface of the concrete shall be finally fin- ished smooth and true to grade and adopted cross - section by two applications of heavy four (4) ply canvas belt, not less than eight (8) inches in width and not less than two (2) feet longer than the width of the pavement to be belted. The belt shall be applied with a combined crosswise and longitudinal motion. For the first application, vigorous strokes at least twOlve (12) inches long shall be used, and the longitudinal movement of the belt along the pavement shall be very slight. The second appli- cation of the belt shall be immediately after the water glaze or sheen disappears from the concrete and it has become slightly sticky, and the stroke shall he not more than four (4) inches and the lingitudinal movement shall be much greater than for the first belting. In places where belt finish of pavement as specified above, can not be used, the surface of the pavement shall be finished smooth and true to grade with a wooden float. The finished pavement shall be such that when tested by a ten (10) foot straight edge held longitudinally with the pavement, variations in excess of one - quarter (k,) inch will not show. This does not apply to crowned intersections or at points where a change of grade occurs. After mixing has stopped, the finishers Shall remain late enough to finish the pavement when the concrete has hardened sufficiently, as herein provided. 4th: All upper edges of the pavement, including the edge adjacent to the curb or gutter shall be rounded off to a radius of three - eighths (3/8) of an inch with an edging tool and the tool marks broomed. The Contractor shall stamp his name and the year.built on the pavement at the beginning and end of each block. The letters shall not be less than two (2) inches in height and im- pressed to a depth of three- eighths (3/8) of an inch. (d) EXPANSION AND CONTRACTION JOINTS: Expansion and contraction joints skull be constructed in the pavement by in- serting therein during construction and leaving in place the joint filler hereinOfter specified. (1) LONGITUDINAL JOINTS: The joint filler for long- . itudinal joints shall be one - quarter (4) of an inch thick, Out to the full depth: of the edge of the pavement and shall be placed • longitudinally along the street between adjacent slabs of the pavement as particularly indicated upon said plans. Placing of joint filler between the curb and pavement will not be required. (2) TRANSVERSE JOINTS: Unless otherwise shown on said plans, transverse expansion joints or "through joints" shall be constructed in the pavement at intervals of sixty (601 feet. The joint filler for "through joints" shall be one -half ( -g) of an inch thick and shall be cut to a depth of one- fourth(4) inch less than the full depth of the section of pavement. IM 01he thickness of the joint filler shall be as above • p�c:.fiea uri, ^e, o'herwlse shown on '-he plans. • ;'Through Joints" shall be constructed as follows:- The position of the transverse joints shall be marked on the forms on each side of the pavement at U-he locations called for on said plans :.i:-these specifications. A metal holder 1/8 inch to 1/4 inch thick cut to the cross - section of the pavement shall be securely staked in place normal to the center line of the pave- ment and perpendicular to the 'finished surface of the pavement. The Joint filler shall then be placed in the holder and held firmly in place with stirrups, angles, pins, outstanding lugs, or any other means that will not interfere with the removal of the holder nor cause the expansion material to be pulled out of place, when the holder is removed. After the joint filler has been securely, staked in place, the concrete shall be deposited on both sides of the section and struck o:_'= with the templet, before the holder is removed. The holder shall not be removed until after the tamping templet and longitudinal float have passed over the section. The'holder shall be removed by slowly lifting from one end and replacing with con- crete as it is lifted so that the joint filler will be left with the lower edge resting on the subgrade and the upper edge.1/4 inch be- low the finish surface of the pavement. The pavement shall then be finished over the joint as hereinbefore provided for in these specifications. After the pavement.has.been finally finished the con- crete shall be cut through with a jointer or other took, leaving the joint filler exposed for its total length and width. The joint thus opened shall be straight and any stones encountered shall be removed and new concrete mortar troweled into place leaving a clean open joint. The slabs on both sides of an expansion joint shall be finished with an edging tool to a radius of three - eighths (3/8) of an inch. True surface alignment of concrete on both sides of the joint must be maintained. Transverse contraction joints or "dummy joints" shall be constructed in the pavement at intervals of twenty (20) feet be- tween transverse expansion joints, unless otherwise shown upon said plans. The joint filler for "dumg joints" shall be one - quarter (w) of an inch thick and two (2 inches in width. "Dummy Joints" shall be constructed as follows:- The position of the joints shall be marked on the forms.on each side of the pavement at the locations called for on said plans or these specifications. After the application of the first canvas belt, as hereinbefore provided for, a groove approximately 21 inches deep shall be made in the pavement at the location of the joint by means of a 3" x ail' x 3/8" T -bar equipped with plow handles and properly supported to hold to the true shape of the roadway section. The T -bar shall remain in the concrete until the concrete has set sufficiently to remain open while the filler is • being inserted. The strip of joint material shall be. inserted 2z inches deep into this groove and the concrete floated smooth over the joint. After the pavement has been finally finished., as herein - before provided, the concrete shall be cut through with a jointer leaving the joint material exposed. The joint thus opened shall be straight, and any stones encountered shall be removed and new concrete mortar troweled into place, leaving a clean, open joint. -10- O _ The slabs on both sides of a contraction joint shall be finished • a1 .tb. an edgi__,; tout. to a radius o.f three— eighths ( 3/8) of an inch. rue surface alignment of'the concrete un both sides of the joint • mr,st be maintained. (e) CURING: immediately after the pavement has been finall- finished and edged it shall be entirely covered with one thickness of seven (7) ounce burlap, previously dampened, proper care being taken not to make ridges in the finished surface of the pavement. The burlap shall not be dragged or pulled across the fresh concrete. This burlap covering shall be sprinkled with water by means of an adjustable garden hose nozzle, so adjusted that it will spray- and the burlap shall be kept wet until removed. The Contractor shall provide with each mixer on "the work, sufficient burlap to cover the maximum amount of pavement laid in one (1) days run. This burlap shall be used exclusively for covering pavement, and shall be replaced by now burlap when deteriorated.. After the concrete pavement has hardened sufficiently so that the earth will not become incorporated in the surface of the concrete, the burlap shall be removed and the curing of the pavement shall -be continued by means of earth dykes, earth blanket, or sprink'.ing in the following manner. (1) Earth dykes shall be constructed along each side of the pavement and across the pavement at intervals,governed by the rate of grade.. In placing earth no teams or wheelbarrows shall be allowed on the concrete.. The earth dykes shall be built sufficiently high so as to hold at least two (2) inches of water over the crown of the pavement: The basins formed by the above dykes shall be flooded with water immediately after they are built and shall be kept flooded for a period of fourteen (14) days, to the depth above specified. (2) Earth Blanket. The whole surface of the pavement shall be covered with earth or sand to a depth of not less than two (2) inches. The covering of earth or sand shall be kept thoroughly and constantly wet by sprinkling with water for a period of fourteen (14) days after the earth blanket has been placed on the pavement. The earth blanket shall be sprinkled with water not less than three (3) times daily during the fourteen (14) day period above specified. All dyking, covering and watering must be commenced not later than the morning of the next day after the pavement is laid and must be completed by noon of that day... • Such intersections as the Street Superintendent may direct shall be opened to traffic after forty —eight (48) hours after laying.. The.intersection shall be protected by planking which shall have at least four (4). inches of earth between it and the pavement. The planks shill be securely fastened so asilot`tol," dangerous to traffic. (3) A system of sprinklers may be installed, ' in such a manner that all portions of the concrete that is being cured' ,I— be kept wet at all times during the period of curing'. Ic .t-ti - ;r (f) CLEANING: The Contractor shall thoroughly clean the surface of the pavement by removing all earth, sweeping and washing immediately after the expiration of the fourteen (14) day curing • period above spedifled. (g) TRAFFIC: No vehicular traffic shall be allowed on the pavement until twent17- •eight (28) days after the placing of the concrete used in constructing the pavement (h) JOINT FILLER: The filler for all expansion and con- traction joints shall consist of composition board made of two layers of paper or felt and a *filler of asphalt or cfomposition board made of fibre permeated.with asphalt. The thickness of the com- position board shall be as hereinbefore specified or as 3..uwn on plans. The quality of the asphalt shall be such that it will not become soft in warm weather or brittle in cold weather. when it is necessary to splice the joint filler it shall be laced or clips•,' >d together in a workmanlike and effective mar.:,3r. when in stora.: on the work, all joint material shall be laid flat on plank. r —12— r d • • .. p.rri .0 f1'V'F`G, �._. 5 R� ✓,� aTiiTE fiC C2sTJlr p1�N11i., COUNTY OF ORANGE )SS, CITY OF NEW ORT BELCH. ; or of the Gi;'ty/ 0f Newp Cite ark -City of Newport Beach, Alfred Smith; Ci.t,y Clerk of the City of Newport Bc-ach, do h<;reby cextify that the foregoing Resolution, being Resolution NoaLaL,, wus adopted by the City Council of said City, signal by tYia bTayor: oI said City, and attested by the City Clerk, all at a regular.'lti�owr•� meeting thereof held on the f.L� day of o�l% , 19.2-,? , and that the same was adopted. by t,lie Y ^1,1owirg; vo)Te.s, tt:, wit: NOES, COUNCILMEN `--)� rBSENT , COUNC.ILMEN bitg 4�1- of the City Newport Beach.