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HomeMy WebLinkAbout475 - Specifications 44 - Gravel Sub-Base SurfaceJ ,..__ � Ar RESOLUTION NO._ 47,15 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT BEACH ADOPTING SPECIFICATIONS X10.44 FOR THE CONSTRUCTION OF BITUMINOUS NIACADAW! +JEARING SURFACE ON A GRAVEL SUB —BASE. BE IT RESOLVED by the City council of the City of Newport Beach, that the followinL. specifications to be known as Specifica- tions No. 44 for the construction of Bituminous Macadam Wearing Surface on a gravel Sub —Baso in the City of Newport Beach and the same are hereby adopted. GRADING CONSTRUCTION 1. GRgDING AREA The grading area shall be all of the space as shown on the plans to be graded and all of the space to be occupied by the pro- posed improvements as shown on the plans. 2. ROUGH GRADING Rou:h gradint- shall include all filling and removal of ex- cess earth, stone, trees, old pavements, curbs, side;^alks, drive- ways, culverts, and any other structures or foreign materials found within the limits of the improvements to be made. j.ny of the above mentioned objects'or matorials shall be removed, whether or not it is within the limits of the improvements, when so noted on the plans. 411 trees within the limits of the improvements shall be removed, including the removal of all roots greater than two (2) inches in diameter to a depth of at least three (3) foot below sub - grade•elevation. (a) Excavation — All soft or.unsuitable material shall be excavated and the space filled with good earth; soft spots shall be excavated to a depth of at least two (2) feet. All oil cake, old pavements, concrete or solii rock to be removed shall be broken to a size not E.reater than four (4) inches in its greatest diameter, if the Contractor elects to use the same in embankments; otherwise, such material shall be removei from the site of the work. If the Contractor elects to blast or shoot any of the materials to be excavates, he shall assume full responsibility for such blasting .or shooting. All slopes shall be cut true, even ani in strict accordance with the lines ani grades furnishes by the Engineer. All surplus excavation ehall be removes from the site of the work. —1— J (b) Embankment. rafter the ri,fht of way is elearei, the total width upon which fill is to be male shall be plowei ani broken up in order to allow the new fillet material to bona with eli earth. Where fills are to be male on hill -sites or old fills are to be wilonei, the slopes of the original grounj shall bo plonei ioeply or cut into steps before filling is cgmmoncei. Places where pools of standing water exist shall be iraine.i ani allowoi to dry before being fillei in. Clods, lumps of earth ani all other matorial over four (4) inches in its greatest diameter shall be broken up before being places in tho fill with the object of obtaining a dense embankment. All fills in excess of one (1) foot in iepth shall be carriei up in layers not more than one (1) foot in thickness. Each layer shall be alternately watored ani cultivates until all the material is sufficiently ani uniformly iampenei. It shall then be rollei with a power roller weighing not less than 400 pounds per lineal inch of tire width. The rolling shall continue until the layer is thoroughly ani uniformly compacted. Before the next layer is places thereon, the surface shall be thoroughly scarified to permit bonding with next layer. Fills, not accessible to the roller shall be thorou €bly puiilei while being made and carried up to a height sufficient for access with the roller. In no case shall such pudlling be carried to a height Neater than four (4) feet at one time. Each puidlel section or layer shall be allowed to dry out before the next layer is placed thereon or before rolling. Upon completion of the embankment, preliminary to making suberade, it shall be thoroughly watered. All fills more than one (1) foot in depth shall be dyked and flooded with water for a sufficient length of time to soak through its entire depth, and where the soil is such that the water does not penetrate fast enough, the diking and .flooding shall be augmented by forcing water into the fills by means of suitable water jets under pressure. After the fill has been thoroughly saturated with water, it shall be allowed to dry for at least thirty (30)days before placing any pavement, curbs, gutters or sidewalks thereon, in order that full settlement shall take place. All embankment slopes shall be smooth, even, and true to the lines and grades as furnished by the Engineer. Where additional rights -of -way for embankment slopes are shown on tho plans, the embankment slope shall extend beyond the roadway right -of -way lines according to the typical sections, as shorn on the plans. there additional rights -of -way for embankment slcpes do not exist, Ve Contractor shell retain the embankment on the roadway right -of -way be means of dry rubble masonry retaining wells constructod from broken concrete, stone, or other suitable material, and such retaining walls will be considered as a part of the embankment and no additional compensation will be allowed 'or the same. 4FDredge material embankment. (c) When the fill is made with sand, it shall be brought up to grade and thoroughly dampened and compacted. Proper dykes or bullheads shall be constructed whore necessary to prevent the spreading of the material beyond the limits of the improvements and such dykes or bullheads will be considered a part of the embankment and no additional compensation will be allowed for same. No mate- rial of a perishable, spongy or otherwise improper nature shall be used in filling. If the sub -grade consists of sand, the rolling thereof will not be required, but it shall be compacted by wetting Sown thoroughly and smoothed to conform to the cross - sections as shown. 3. SUBGRADE FOR GRAVEL BASE. The subgrade hereinafter referred to moans all of the area upon which the surfacing or pavement is to be laid. After the rouEh grading has been completed, the subgrade shall be plowed, scarifiod and uniformly broken up and pulverized until no clod or lump of earth of more than one (1) inch in its greatest diameter remains, to a depth of seven (7) inches. After the subgrade is prepared as above described, it shall be relief and brought to true grade and cross section. It shall then be alternately cultivated both longitudinally and diagonally and sprinkled until it is thoroughly ant uniformly wetted to a depth of at least seven (7) inches. It stall then be rolled with a three wheeled roller having not less than four hundred (400) pounds compression per inch width of tire, until the soil is firmly compacted and does not yield or creep under the wheels. The rolling shall then continue until the entire area of the subgrade shall have been completely re- rolled three (3) times. In case the subgrade, as a whole or in part, after being prepared as above described, is soft and springy and yields under the wheels of the roller; the operation as described above shall be repeated until the subgrade is satisfactory and in accordance with these specifications. After the final rolling, the area of the sub -base upon which the surfacing or pavement is to be laid shall be thoroughly sprinkled and then allowed to bake or dry for at least three 3) days before the surfacing or pavement is laid thereon. Continued use of sections of prepared subgrade for hauling, so as to cut up or deform it from the true cross - section will not be permitted. The Contractor shall protect the prepared sub -grade from both his own and public traffic. GRAVEL BASE. The material for the gravel sub -base and shoulders shall consist of disintegrated granite or cementitior.s gravel, which shall possess such cemontitious properties that it will compact and thoroughly cement under water and rolling so as to make a.hard, bonded surface. It shall not contain more than fifteen (15) per cent nor less than seven (7) per cent, by dry weight, of clay. It shall not contain more than three (3) per cant, by dry weight, of loam or silt, -3- The gravel base consisting of the gravel heroin specified shall be spread uniformly by hand at such rate that its thickness after compression shall be that shorn on the plans, upon the sub - grade prepared as described herein, and shall be thoroughly wetted and than rolled with a roller having a compression of at least four hundred (400) pounds per inch width of tire. The rolling shall begin on the shoulders and shall ov,.;rlap by at least on the width of the roller; toward thu center of the road on success- ive trips and the rolling shall ba, continued until all roller marks are eliminated and the surface is unyielding, uniformly smooth, free from bumps, sags or looso spots. The final rolling, after the gravol base has boon thoroughly compacted, shall be done in the following manner: The surface of the gravel shall be thor- oughly sprinkled with water on3 tiun the entire area of the gravel base shall be immediately rolled with the roller specified herein - before until the surface of the gravel has boon evenly compacted. t,fter the final rolling the slarfaco of the gravel base shall be thoroughly sprinkled and then allowed to bake or dry out until it has become completely dry before placing the ^roaring surface. The Contractor will not be permitted to haul over the gravel being spread upon tho sub - grade until the gravel base has boon wet rolled and entirely complotud in accordanco with the specifications. BITU14MOUS iviAC.Ziuy, i4BARING SURFACE ilaterial s . Stone - materials shall consist of broken stone from sound ledge rock or crushed boulders of such character as to meet the following requirements: Where the broken stone is produced from rounded or water- worn boulders or stones having full rouni or half round surfaces, only material that is rejected by a grizzly with five (5).inch clear openings between the bars, shall be crushed. All materials shall be free from clay, dust, vegotablo r.:atter, loam and other deleterious matter. All stone shall pass a screen having throe- quarters (3/4) inch openings and shall be retained on a screen �. having (1/4) inch openings.. Stone shall be sound, of uniform character and quality and when tested shall conform to the following requirements for abrasion and toughness: Thu loss in thu graced Doval ,abrasion Test shall not ex- coo'! five (5) per cer.t. .ME It shall all pass a screen having one and one -half (12) inch cir- cular openings and shall contain not less than thirty (30) per cent but not morn than seventy (70) per cent, by dry weight, of well graded rock which will not break up under the roller. Said rock shall range in size from that which i -ill be retained on a ten (10) mesh sieve to that which will pass a scroun having one and one -half (121) inch circular openings. ill ,material shall be approved at the source by the Supurintendont of Vvork beorre being hauled to the work. The gravel base consisting of the gravel heroin specified shall be spread uniformly by hand at such rate that its thickness after compression shall be that shorn on the plans, upon the sub - grade prepared as described herein, and shall be thoroughly wetted and than rolled with a roller having a compression of at least four hundred (400) pounds per inch width of tire. The rolling shall begin on the shoulders and shall ov,.;rlap by at least on the width of the roller; toward thu center of the road on success- ive trips and the rolling shall ba, continued until all roller marks are eliminated and the surface is unyielding, uniformly smooth, free from bumps, sags or looso spots. The final rolling, after the gravol base has boon thoroughly compacted, shall be done in the following manner: The surface of the gravel shall be thor- oughly sprinkled with water on3 tiun the entire area of the gravel base shall be immediately rolled with the roller specified herein - before until the surface of the gravel has boon evenly compacted. t,fter the final rolling the slarfaco of the gravel base shall be thoroughly sprinkled and then allowed to bake or dry out until it has become completely dry before placing the ^roaring surface. The Contractor will not be permitted to haul over the gravel being spread upon tho sub - grade until the gravel base has boon wet rolled and entirely complotud in accordanco with the specifications. BITU14MOUS iviAC.Ziuy, i4BARING SURFACE ilaterial s . Stone - materials shall consist of broken stone from sound ledge rock or crushed boulders of such character as to meet the following requirements: Where the broken stone is produced from rounded or water- worn boulders or stones having full rouni or half round surfaces, only material that is rejected by a grizzly with five (5).inch clear openings between the bars, shall be crushed. All materials shall be free from clay, dust, vegotablo r.:atter, loam and other deleterious matter. All stone shall pass a screen having throe- quarters (3/4) inch openings and shall be retained on a screen �. having (1/4) inch openings.. Stone shall be sound, of uniform character and quality and when tested shall conform to the following requirements for abrasion and toughness: Thu loss in thu graced Doval ,abrasion Test shall not ex- coo'! five (5) per cer.t. .ME E The loss in the dry shot rattler tast shall not exceed twerty -live (25) per c-ont. The loss in the wet shot rattler test shall not exceed thirty -five (35) per cent. The loss in the Los Angles rattler test shall not ex- coci thirty -five (35) per cent. Screenings: - shall consist of material similar to that specified and shall be that portion of the product of the crusher 14 '7hich will pass a screen having circular openings one - quartor (1/4) inch in diameter and rotainod on a he. 10 screen. ASPHALTIC ROAD OIL The oil shall be made from an asphaltic base crude oil, which in its natural state, contains not less than sixty (60) per cent of eighty (80) penetration asphalt for the 70 - 75 per cent road oil;and not less.thar_ seventy -five (75) per cent of eighty (80) penetration asphalt for the 90 - 95 per cent road oil. The oil shall be produced wnd distilled for road oil purposes only, and refinery residuums, which are the by- products. from the refining of crudes for gasolines, distillates, kerosenes and lubrication oils will not be permitted under these specifica- tions. During the refining process, the oil shall not have been heated to a temperature above five hundred and fifty degrees (5500) P. for the 90 - 9514o road oil and not above five hundred degrees (5000) F. for the 70 - 75o road oil. (a) PER CENT ASPHALT: The oil for shall contain not less than seventy (70) per sevonty--,five (75) per cent of eighty (80) pe The oil for the second application less than ninety (90) per cent nor more than per cent of eighty-(80) penetration asphalt. the first application cent nor more than zutration asphalt. shall contain not ninety -five (95) Determination of asphalt content to be made as herein- after described. (b) WATER AND SEDINME T: The oil shall contain not more than one per cent 1' /o by volume, of water for the 70 - 750 road oil; and not more than one -half of one per cent (0.5 %) by volume, of water for the 90 - 95'/6 road oil. The oil shall contain not more than one per cent (1'%) by volume, of sediment. The percentage of water shallbe determined by distillation in accordance with the method of the American Society for Testing Materials, serial designation D 95 -21T• The • percentage of sediment shall be deter - minod by mixing in a graduated centrifugal tube fifty (50) cubic centimeters of the oil to be tested with fifty (50) cubic centi- meters of a mixture of gasoline and carbon bisulphide having a specific gravity between ,9993 and .9964. The tube and contents shall be run in a r,,untriiugal machine ten (10) minutes at a speed of fifteen hundred (1500) revolutions per minute, after which the per cent of sediment settled at the bottom. of the tube shall be computed. _5_ I' la (c) SOLUMLITY IN CARSON TISULPHIDS - A two (2) gram sample, when free from water, stall be at least ninety -nino per cent (99jo) soluble in carbon bisulphido. (d) SOLUBILI'T'Y IV MOMINE SI =ULPHIDE - Of the bitumen scluble in carbon risulphide, at least ninety -nine and sixty -five hundredths per cent (29.65j) shall be soluble by either the bromine Lisulphido Test or the Carbon Tetrachlorido Test as hereinafter provided. (e) WAX CONTENT - Small be not more than one (1) per cent by weight when tested in accordance with the method given in Lullotin No. 17, Revision of the Kansas City Testing Laboratory. (f) DUCTILITY - Tho ductility of the asphalt in the oil, reduced to a penetration of eighty hundredths (.80) centimeters (which asphalt shall be obtained as hereinafter spocified) shall be not less than five (5) centimeters when tested in,accor.dance with the standard test of the American Society for Tosting Materials, serial designation D 113 -23 T, with the following modifications: Thu molded sample, mold, and the water bath shall be kept at a tomparsturo of thirty -four degroos (340) to thirty -five degrees (350) Fahrenheit during the test and for one (1) hour prior thereto. (t,) ASPHALTIC DETERLINMION - Fifty (50) grams of oil freed from water shall be pl&ced in a cylindrical glass dish having an inside diameter of two and three- eighths inches (2 3/8) and a height of three- quarters inch (3/4 ") and shall be kept in an oven capable of maintaining, a temperature of four hundred degrees (4000) F. The sample of oil shall be maintained at a temperature of from three hundred seventy five degrees (3750) F•, to four hundred degrees (400 ) F., until it has reached a consistency which will result in a penetration of eight (8) millimeters as determined bj+ a He. 2 noodle weighted with one hundred (100) grams for five (5) seconds at seventy -seven degrees (770) F. The residue shall then be weighed and the percentage of the original weight computed. (h) B_ROMIWE BISULPHIDE TEST - Twenty -five (25) cubic centimeters of a solution composed of ono hundred thirty -five (135) milligrams of bromine to one hundred (100) cubic centimeters of carbon bisulphide shall be poured upon two (2) grams of asphaltic cement and shaken for three (3) minutes. It shall be immediately filterod through a Gooch crucible with manometer not,exceeding twenty (20.) centimeters. The solution shall pass throuE,h the crucible in it less than two (2) nor more than ten (10) minutes. The crucible shall then be washed with carbon bisulphido, dried at a temporaturn betoen one hundred doEreus (1000) and one hundred five degrees .(1050) centigrade and voighed. Solution and filtra- tion shall be in non:.ctinic '_Z.H. (i) CARBON TETRACHLORIDE TEST - One hundred (100) cubic centimeters of carbon jctrachloride shall be poured upon one (1) gram of asphaltic ecmeat. Thu mixture shall be skaken, set aside for eighteen (18) hours in the dark, and filtered in nonactinic liE:ht through a Gooch crucible with manometer not exceeding twenty (20) contimators. The solution shall pass through the crucible in not less than five (5) nor more than twenty- five_(25) minutes. ME • (J) SOLUBILITY IN PETROLEUM ETHER - Of the bitumen soluble in carbon bisulphide, not more than twenty -seven per cant (277o) nor less than six per cent (6o) shall be insoluble in petro- leuw either of between eighty degrees (800) and eighty -two degrees (82 ) A. P. I. gravity when tested in, accordance with the method c-iven in United States Department of Agriculturo Bulletin No. 1216, pages 49 and 50. (k) SOFTENING POINT - Shall be not lower than ninety (90) degrees F., wizen tested in accordance with the method of the American Society for testing materials, serial designation D- 56 -24• (1) FLOAT VISCOSITY - Shall be not loss than fifty (50) seconds for an oil containin ninety (90) per cent asphalt. For each one -tenth (0.1) of one F1) per cent above ninety (90) per cent of asphalt in the oil, one (1) secon.i shall be added to the fifty (50) seconds above specified. Test to be made in accordance with the method given in Bulletin No. 17, Revision of the Kansas City Testing Laboratory. (m) SPREADING TEMPERATURE - All oil shallbo sproal at a temperature of riot less thin throe hunlrod and fif .y 3e g2oes (3500) Fahrenheit nor mere; than four hundred degrees (400 )i Fahrenheit. WEARING SURFACE Tho gravel base herein-before specifiad shall be thoroughly swept with a revolving street broom and then lightly sprinkled so that the surface shall be moist but not wet. There shall then be uniformly spread asphaltic road oil containing from seventy (70) to seventy -five (75) per cent of eighty (80) penetration asphalt, at the rate of one =half (1/2) gallon per square yard of road surface. Upon the oiled surface shall then be spread a lager of crushed rock which will passe, three - 5uarter (3/4) inch screen and be retained on a ono - quartor (1/4) inch screen., graded uniformly. The crushed rock shall be spread evenly over the oil at the rato of approximately 6.35 pounds per square foot of road surface. The surface shall then be dragged with the broom locked to prevent revolving, until the surface is uniformly coated with the crushod rock, then sprinkled and thor- oughly rolled with a self - propelled roller having not loss than four hundred (400) pounds compression per inch width of tiro. The dragging and rolling shall be repeated as many times as necessary Is to secure a smooth, even surface with the maximum.possible amount of crushed rock adhering to the oiled surface. After the wearing; surfaco has boon rolled until it is solid, smooth and uniform, true to grado and cross- soction, there shall then be uniformly spread asphaltic road oil containing from ninety (90) to ninety -five (95) per cent of eighty (80) penetration asphalt, at the rate.of twenty -two hundredths (0.22) gallon per square yard of road surface. Upon the oiled surface shall then be ,,proad a layer of crushed rock screenings which will pass a one - quarter (1/4) inch screen and be retained on a No. 10 screen. -7- dried The crucible shall then be washed with carbon tot6achloride, at a temperature botwoen one hundred degrees (100 ) and one hundred five dogroes (1050) contigrado and weia -hod. In addition to the forogoinf:, the 90 - 95o road oil shall moot the following require- ments: (J) SOLUBILITY IN PETROLEUM ETHER - Of the bitumen soluble in carbon bisulphide, not more than twenty -seven per cant (277o) nor less than six per cent (6o) shall be insoluble in petro- leuw either of between eighty degrees (800) and eighty -two degrees (82 ) A. P. I. gravity when tested in, accordance with the method c-iven in United States Department of Agriculturo Bulletin No. 1216, pages 49 and 50. (k) SOFTENING POINT - Shall be not lower than ninety (90) degrees F., wizen tested in accordance with the method of the American Society for testing materials, serial designation D- 56 -24• (1) FLOAT VISCOSITY - Shall be not loss than fifty (50) seconds for an oil containin ninety (90) per cent asphalt. For each one -tenth (0.1) of one F1) per cent above ninety (90) per cent of asphalt in the oil, one (1) secon.i shall be added to the fifty (50) seconds above specified. Test to be made in accordance with the method given in Bulletin No. 17, Revision of the Kansas City Testing Laboratory. (m) SPREADING TEMPERATURE - All oil shallbo sproal at a temperature of riot less thin throe hunlrod and fif .y 3e g2oes (3500) Fahrenheit nor mere; than four hundred degrees (400 )i Fahrenheit. WEARING SURFACE Tho gravel base herein-before specifiad shall be thoroughly swept with a revolving street broom and then lightly sprinkled so that the surface shall be moist but not wet. There shall then be uniformly spread asphaltic road oil containing from seventy (70) to seventy -five (75) per cent of eighty (80) penetration asphalt, at the rate of one =half (1/2) gallon per square yard of road surface. Upon the oiled surface shall then be spread a lager of crushed rock which will passe, three - 5uarter (3/4) inch screen and be retained on a ono - quartor (1/4) inch screen., graded uniformly. The crushed rock shall be spread evenly over the oil at the rato of approximately 6.35 pounds per square foot of road surface. The surface shall then be dragged with the broom locked to prevent revolving, until the surface is uniformly coated with the crushod rock, then sprinkled and thor- oughly rolled with a self - propelled roller having not loss than four hundred (400) pounds compression per inch width of tiro. The dragging and rolling shall be repeated as many times as necessary Is to secure a smooth, even surface with the maximum.possible amount of crushed rock adhering to the oiled surface. After the wearing; surfaco has boon rolled until it is solid, smooth and uniform, true to grado and cross- soction, there shall then be uniformly spread asphaltic road oil containing from ninety (90) to ninety -five (95) per cent of eighty (80) penetration asphalt, at the rate.of twenty -two hundredths (0.22) gallon per square yard of road surface. Upon the oiled surface shall then be ,,proad a layer of crushed rock screenings which will pass a one - quarter (1/4) inch screen and be retained on a No. 10 screen. -7- n 4 The scrconin�as shall be spread evonly over the oil at the rate of approximately 2.90 pounds per scuare foot of road surface. The surface shall then be d-r- E;ged, sprinkled and rolled as before until it becomes hard and smooth, true to grade and cross - section and free from all irregularities. The asphaltic road oil shall be applied by means of a pressure spraying machine, satisfactory to the 5up:rintendent of Work. The use of "Eravity Distributors" will not be pormitted, C GENERAL REQUIREMENTS WORK The Contractor shall, for the price bid, furnish all the materials to execute the work in every respect in a thorough and workmanliko manner, in accordance with the plans and specifications, and to the satisfaction of the Street Superintendent. MATERIALS AND SAMPLES All materials must be of specified quality and fully equal to the samples, when samples are required. The Contractor shall furnish to the Engineer for test, whenever called for and free of charge, samples of .all materials proposed to be used in the work. Rejected material must be immediately removed from the work by the Contractor. M. Any overseer, superintendent, laborer or other person em- ployed by the Contractor on the work, who shall perform work in a manner contrary to these specifications, shall be discharged im- mediately and such person shall not again be employed on the work. EXPOINTATION OF GROUND Bidders must examine and judge for themselves as to the location of the proposed work, and the nature of the excavation to be made and the work to be done. SETTING STAKES The Contractor shall give 24 hours notice in writing when he will require the services.of the Engineer for laying.out any portion of the work. ke shall dig all stake holes necessary to give lines and levels. The Contractor shall preserve all stakes set for the lines, levels or measurements of the work in their proper places until authorized to remove them by the Engineer, and any expense incurred in replacing said stakes which the Contractor or his subordinates may have failed to preserve shall be borne by the Contractor. PLATS AND SPECIFICATIONS The Contractor shall keep upon the work a copy of the plans and specifications, and access thereto shall at all times be accord- ed the Engineer or Inspector. INSPECTORS The Contractor shall prosecute work only in the presence of an Engineer cr Inspector, appointed by the Street Superintendent, and any work done in the absence of said Engineer or Inspector w ill be subject to rejection. The Contractor shall furnish the Engineer and Inspector reasonable; facilities for obtaining such information as may be necessary to give them full information.at all times reEpecting the progress and manner of the work and the character of the materials. PRESERVATION OF MONUMEPITS. The Contractor shall not .disturb' any monuments or stakes ferni on, the line of improvements, until ordered.by the Engineer, ^.iid he shall bear the expense of re- setting any monuments or.stakes +high maybe disturbed without orders. REMUCING .OBSTRUCTIO11S The Contractor shall remove all trees., stones, debris, .i:c other obstructions that may be encountered in making said :.mFro'rements. � a OBSERVING.CITY ORDINANCES 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 or dangerous to travel. BARRIERS, LIGHTS, ETC. The Contractor shall take all necessary measures to protect the work and prevent accidents during construction. He shall main- tain and provide all necessary" barriers, guards, temporary bridges, watchmen and lights. 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 Street Superintend- ent, to move such property :iithin a,spec.ified reasonable time, and the Contractor shall not interfere with said property until after the expiration of the time specified. The right is reserved to the owners of public utilities and franchises to enter upon the street for the purpose of making re- pairs or changes of their property that may be made necessary by the work.. The City shall also have the privilege of entering upon the street for the purpose of repairing culverts or storm drains. LOSS OR DAMAGE All loss or damage arising from any unforseen obstruction or difficulties, either nc,tural or artificial, which may be en- countered in the prosecution or the work, or from any action of the elements, or from any act or omission not authorized by these specifications, on the part of the Contractor,. or any agent or per- son employed by him, shall be sustained by the Contractor. DEFECTIVE WORE: No work which may be 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 defect or.deficiency during construction, and the Contractor shall correct any imperfont work, •ahenever discovered, before the final acceptance of the work. PROTECTION OF FORK AND CLEANING UP The Contractor shall care for all e?ork until final completion and acceptance. Ho shall remove all surplus gaterial and rubbish from the wore niter its tumpleti.on and before he makes application for the acceptance of the w.or:>. FIN,i'Q INSPECTION Thc, Cnuractur shall notify the Street Superintendent when he .desires a V.nal -.nspe ^-;ion of the work, when the latter will, as scon a;; possible,. fake the .necessary examination, and if the work is fuu.nd in co;apli.acc with these specifications, the Street Sup ^ri.ntendent will furnish the Contractor with a certificate to the'; eff =C4 t ALLOWABLE VARIATION When in these specifications a maximum or-minimum, either in size, percentage or thickness, or relating to quality or character, or other matter, is allowed or proscribed, the crork shall be accepted as in compliance therewith if within such maximum or minimum so allowed hereby. Whenever the it refers to the Cit y Whenever the cations~ it refers t o in the agreement for fied. Whenever the words "Superintendent" or "Engineer" are these specifications, they refer respectively to-the Superintendent" or "City Engineer" of the City of Beach, or their authorized agents or,inspeetors. DEFINITIONS word "City" is used in these specifications ,of Newport Beach, California. word "Contractor" is used in these specifi- the party or parties of the second part the construction of the work herein speci- used in "Street Newport I Passed and approved this S7 day of Ale enkli , 192 d Mayor ATTEST: City Clerk. STATE OF CALIFORNIA COUNTY OF ORANGE k ss. CITY.OF NEWPORT BEACH ) I, , City Clerk of the City of Newport beach, do hereby certify that the foregoing Resol- ution, being Resolution No. , was adopted by the City Council of the City of Neivport Beach, signed by the Mayor of said City, and attested by the City Clerk, all at a regular meeting thereof held on the day of , 192_, and that the same was adopted by the following vote, to wit: AYES: Councilmen, NOES: Councilmen, ABSENT: Councilmen, Am IMF- City Clerk of the City of Newport Beach