HomeMy WebLinkAbout97 - Construction of Sanitary Sewers1
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RESOLUTION NO. 97
A RESOLUTION OF THE BOARD OF TRUSTEES OF THE CITY
OF NEWPORT BEACH, ADOPTING SPECIFICATIONS NO. 27
FOR THE CONSTRUCTION OF SANITARY SEWERS WITH CEMENT
SEWER PIPE, MANHOLES, JUNCTION CHAMBERS, PUMPING
STATIONS, RECEIVING BASINS, SEPTIC TANK ANDCQTHER
APPURTENANCES IN THE CITY OF NEWPORT BEACH.
Be it resolved by the Board of Trustees of the City of New-
port Beach, that the following Specifications to be known as
Specifications No. 27 for the construction of sanitary sewers with
cement sewer pipe, manholes, junction chambers, pumping stations,
receiving basins, septic tank and other appurtenances in the City
of Newport Beach be and the same are hereby adopted.
GENERAL REQUIREMENTS
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WORK: The contractor shall, for the price bid, furnish al
materials and perform all the labor necessary to execute the work
in every respect in a thorough, workmanlike manner, in accordance
with the plans and specifications and to the satisfaction of the
Street Superintendent.
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MATERIALS AND SAMPLES: All materials must be of specified
quality and fully equal to samples when samples are required.
The Contractor shall furnish to the City Engineer for test, when-
ever called for and free of charge, samples of all materials pro-
posed to be used in the work. Rejected materials must be immedia
ly removed from the work by the Contractor, and shall not be
brought again upon the work.
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LABOR: The Contractor shall employ competent foreman,
laborers and mechanics. Any overseer, superintendent, laborer,
or otherperson employed on the work by the Contractor, who is in-
temperate, incompetent, or who shall perform his work in a manner
contrary to these specifications shall be discharged immediately
and such person shall not again be employed on the work.
In the absence of the Contractor from the work, whether
permanent oL temporary, he must provide and leave a competent and
reliable agent or foreman in charge.
All notices, communications, orders or instructions given
or sent to or served upon such agent or foreman shall be taken as
served upon the Contractor.
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EXAMINATION OF GROUND: 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 work to be done.
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SETTING STAKES: The Contractor shall give twenty- four(24
hours' notice in writing when he will require the service of the
City Engineer for laying out any portion of the work.
He shall dig all stake holes necessary to given 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 City Engineer, and any
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expense incurred in replacing said stakes which the Contractor or
his subordinantes may have failed to preserve shall be borne by
the Contractor.
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PLANS AND SPECIFICATIONS: The Contractor shall keep upon
the work,a copy of the plans and specifications, and access there-
to shall at all times be accorded the Engineer or Inspector.
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INSPECTORS: The Contractor shall prosecute work only in
the presence of an engineer or an inspector appointed by the Stre
Superintendent and any work done in the absence of said engineer
inspector will be subject to rejection. The Contractor shall
furnish the engineers and inspectors reasonable facilities for
obtaining such information as they desire respecting the progress
and manner of the work and.the character of the materials.
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PRESERVATION OF MONUMENTS: The Contractor shall not dis-
turb any monuments or stakes found on the line of the improvements
until ordered by the City Engineers and he shall bear the expanse
of resetting any monuments or stakes which may be disturbed withou
orders.
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REMOVING OBSTRUCTIONS: The Contractor shall remove all
trees, stones, debris and other obstructions that may be encounter
in making said improvements.
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OBSERVING CITY ORDINACES: The Contractor shall observe
all the ordinm ces of the City of Newport Beach in rleation to
obstruction of streets, keeping passageways open and protecting
the same where they are exposed or are dangerous to travel.
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BARRIERS, LIGHTS, ETC.: The Contractor shall take all
necessary measures to protect the work and prevent accidents
during construction. He shall provide and maintain all necessary
barriers, guards, temporary bridges, watchmen and lights.
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CROSS STREETS: No more than one cross street shall be
closed at one time.
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PUBLIC UTILITIES AND HOUSE CONNECTIONS: In case it should
be necessary to move the property of any owner of a public utilit
or franchises such owner will, upon proper application by the
Contractors be notified by the Street Superintendent to move such
property within a specified reasonable times and the Contractor
shall not interfere with said property until after the expiration
of the time specified.
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The right is reserved to the owners of public utilities and
franchises, to enter upon the street for the purpose of making
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repairs or changes of their property that may be made necessary
by the work. The City shall also have the privilege of entering
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upon the street for the purpose of repairing sewers, water pipes,
or other pipes or conduits, or making house connections therewith,
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or repairing culverts or storm drains.
The Contractor shall not disturb any sewers or house con -
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nection sewers or other house connections that may during con-
struction be found located in any place that is to be occupied
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by some portion of the work which is to be constructed under his
contract or which occupy any portion of the trench or tunnel which
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it is necessary for him to excavate in prosecuting the work, un-
less he first obtains from the Street Superintendent or inspector
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a permit in writing so to dD.
Unless otherwise indicated on the plans, or unless per -
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mission is granted by the Street Superintendent or inspector for
their removal or other disposition, all house connections shall
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be maintained by the Contractor and shall not be disturbed or dis-
connected by him during the progress of the work.
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LOSS OR DAMAGE: All loss or damage arising from any unfor-
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seen obstruction, either natural or artificial, or other diffi-
culties which may be encountered in the prosecution of the work,
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or from any action of the elements, prior to final acceptance of
the work, or from any act or omission not authorized by these
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specifications, on the part of the Contractor, or any agent or
person employed by him, shall be sustained by the Contractor.
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DEFECTIVE FORK: No work which may be defective in it cln-
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struction, or deficient in any of the requirements of these speci-
fications will be considered as accepted in consequence of the
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failure of any officer of the City or inspector connected with
the work to point out said defects of deficiency during construc-
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tion, and the Contractor shall correct any imperfect work, wheneve:
discovered, before the final acceptance of the work.
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PROTECTION OF WORK AND CLEANING UP: The Contractor shall
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care for all work until final completion and acceptarc e. He shall
remove all surplus ua terial and rubbish from the work after its
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completion and before he makes application for the acceptance of
the work.
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FINAL INSPECTION: The Contractor shall notify the Street
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Superintendent when he desires a final inspection of the work, whe,
the latter will, as soon as possible make the necessary examinatio,
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and if the work is found in compliance with these specifications,
the Street Superintendent will furnish the Contractor with a cer-
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tificate totthbt effect.
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ALLOWABLE VARIATIONS When in the specifications a maximum
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and minimum, either in size, percentage or thickness, or relating
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to quality or character or other matter, is allowed or prescribed,
the work shall be accepted as in compliance therewith if within
such maximum or minimum so allowed hereby.
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Il ��
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DEFINITIONS: Whenever the word "City" is used in these
specifications it refers to the City of Newport Beach, California,
When the word IfContractor" is used in these specifications
it refers to the party or parties of the second part in the agree-
ments for the construction of the work herein specified.
Whenever the words "Street Superintendent" or "City Emggnee
are used in these specifications, they refer respectively to the
Street Superintendent or the City Engineer of the City of Newport
Beach, or their authorized agents or inspectors.
MATERIALS
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BRICK
The brick used shall be whole, sound, hard brick and must
give a clear, ringing sound when struck together. They shall be
uniform in quality and shall be culled or sorted when delivered
on the ground.
All bricks shall be subject to the following test made by
the City Engineer:
Three or more bricks shall be broken across, thoroughly
dried, weighed, then immersed in water for 24 hours, and then
weighed again. The absorption shall be determined by the differ-
ence between the two weights, and if such absorption shall exceed
ten (10) per cent of the dry weight, the brick from which the
samples for test were selected shall be rejected.
All Brick shall be of the kind usually known as common
brick with rectangular surfaces, and shall have the following di-
mensions: 8 inches by 4 inches by 2-J inches.
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CEMENT PIPE
GENERAL DESCRIPTION: All pipe shall be machine moldeddand
m ,,chine compacted.
All pipe shall have bell and spigot ends.
All branches and other specials shall conform to standard
sewer pipe designs as shown by plans and specifications furnished
by the engineer.
All pipe and specials shall be of uniform size and thick -
ness, and shall be designated by their interior diameter and shall
not vary from a true circle more than three per cent (3%) of its
nominal diameter. Pipes not intended for curves or bends shall
be true and straight.
Each straight pipe having a branch or connection molded
thereon shall be not less than two (2) feet, nor more than three
(3) feet long; plain pipe shall be in length not shorter than two
(2) feet nor longer than (3) feet.
The bells of all pipe shall be of the self - centering type
and there shall be left an annular space sufficient to permit of
the proper placing of joint mortar, said space to be at least
three - eights (3/8) inch between the bell and spigot.
QUALITY: All pipe shall be first quality, free from cracks
blisters and other imperfections that are detrimental to the work;
and shall be dense and tough.
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Pipe thirty days old, when broken shall appear homogeneous7
free from voids and generally uniform; and if containing stone
shall show pieces of fractured stone firmly imbedded in the mortar
MATERIALS: All pipe shall be made of Cement of the quality
herein specified7 and sand, except that gravel or broken stone to
a size of one -half the thickness of the shell of the pipe will be
permitted.
The pipe shall be made of a mixture which shall be by
measure one part of Cement to three parts dry aggregate, and the
aggregates shall be so proportioned as to produce a pipe which wil
comply with the tests herein dpecified.
All cement used shall conform to the specifications and
tests herein prescribed.
The ma terials composing the aggregate shall be graded to
fill voids and shall be clean and suitable for the work.
No hydrafted lime, alum and soap, asphaltum7 oil or other
water - proofing compound7 or any materials other than cement7 sand,
stone and water, will be permitted in manufacturing the pipe,
nor shall any coating of cement wash be added to the inside surfac
METHOD OF MAKING: All pipe shall be made under a roof, the
materials shall be thoroughly mixed in a batch machine mixer and
shall then be fed into metal molds and during the process of feed-
ing shall be thoroughly tamped with a power tamper in layers of
about one inch in thickness. The feeding must be regular and
uniform.
CURING: All pipe shall be kept thoroughly wet for a per
of seven days and shall bear the date of manufacture and shall
not be laid in the trench before thirty days old.
DIMENSIONS: All pipe shall be designated as to respective
dimensions as follows:
TESTING: The engineer may at any time make tests as here-
inafter described, of any pipe to be used in the work, and the
contractor shall furnish at his own expense samples selected for
such tests.
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TABLE
OF DIMENSIONS
Minimum
Shell
Minimum
Size
Length
Thickness
Socket Depth.
4
in.
2 ft.
3/4 in.
2 in.
6
in.
2 ft.
3/4 in.
2 in.
8
in.
2 ft.
3/4 in.
2 in.
10
in.
2"E ft.
1 in.
2 in.
12
in.
2 ft.
1 in.
2 in.
14
in.
3 ft.
1* ' in.
2 in.
15
in.
2* ft.
l-, in.
2 in.
16
in.
2-LT ft.
1 3/8 in.
2j in.
18
in.
22 ft.
1' in.
2 in.
20
in.
2j ft.
1 3/4 in.
2 in.
21
in.
2z ft.
1 3/4 in.
22 in.
22
in.
2j ft.
1 7/8 in.
2z in.
24
in.
2 ft.
2 in.
3 in.
27
in.
2* ft.
2 in.
3 in.
30
in.
22 ft.
in.
3 in.
TESTING: The engineer may at any time make tests as here-
inafter described, of any pipe to be used in the work, and the
contractor shall furnish at his own expense samples selected for
such tests.
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HYDROSTATIC TEST: Untreated pipe thirty days old shall
no percolation up to 15 pounds water pressure per square inch,
held for five minutes, and shall resist momentary fracture at
thirty pounds per square inch.
ABSORPTION TEST: Untreated pipe thirty days old and
thoroughly dry, shall show an absorption of not more than five (5)
per cent; to be determined by immersing a broken piece in water
for a period of twenty -four hours7 and then dividing the differenc
between its original weight and its weight at the end of the
period of immersion, by its original weight.
BROKEN PIPE: No pipe shall be used which has a piece
broken from the spigot end deeper than the bellor longer than o
third of the diameter of the pipe; nor which has a piece broken
from the bell end if the fracture extends into the body of the
pipe or is longer than one -third of the diameter of the pipe.
INSPECTION: All materials used in the manufacture and the
process of manufacture and the finished pipe, shall be subject to
inspection at the factory and the contractor shall provide all
apparatus necessary for making the tests herein specified.
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CAST IRON PIPE
All cast iron pipe shall be of the best quality of water
pipe, furnished in twelve -foot lengths, and shall have a minimum
weight per lineal foot within three (3) per cent of the following
standards:
8 inch pipe, 43 pounds; 10 inch pipe, 57 pounds; 12 inch pipe,
73 pounds; 14 inch pipe, 90 pounds; 16 inch pipe, 108 pounds;
18 inch pipe? 129 pounds; 20 inch pipe, 150 pounds, and 24 inch
pipe, 204 pounds. Such cast iron pipe shall be sound and smooth
without cracks7 cold shorts swells, lumps, scabs, sand holes, or
other imperfections, and wholly free from admixture of cinders,
slag or sand, and shall be dipped as specified for castings in
Section 26 of these Specifications.
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["DIRDRY Y
All cement used shall be Portland cement and must conform
to the following requirements and be subject to the following
tests, which will be open to the Contractor and will be made by
the methods and under the conditions prescribed by the Committee
on Cement Tests of the American Society of Civil Engineers:
(a) CONSISTENCY. All cement for set tests, test pats and
neat briquettes will be mixed with sufficient water to reduce the
cement to normal consistency as prescribed by the Committee of thi
American Society of Civil Engineers. Neat briquettes will be
pressed into the molds by the hand, and the mortar briquettes wil:
be compacted by light tapping. Mortar briquettes shall be mixed
to a state of plasticity corresponding as nearly as possible to
normal consistency in neat briquettes.
(b) FINENESS. The cement must be evenly ground, and
when tested with the following standard sieves, must pass at lease
the following percentages by weight.
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No. 100 sieve, having 100 meshes per lineal inch 92,E
No. 200 sieve, having 200 meshes per lineal inch 75%
(c) TIME OF SETTING. It shall develop initial set in
not less than thirty (30) minutes, but must develop hard set in
not less than one (1) hour nor more than ten (10) hours.
(d) TENSILE STRENGTH. Neat briquettes one (1) inch square
in section shall attain a minimum tensile strength as follows:
At 24 hours in moist air 175 lbs.
At 7 days (1 day in moist air, 6 days in water) 500 lbs.
At 28 days (1 day in moist air, 27 days in water)600 lbs.
Briquettes one (1) inch square in section, made of one (1)
part of cement to three (3) parts of standard testing sand, shall
attain a minimum tensile strength as follows:
At 7 days (1 day in moist air, 6 days in water) 200 lbs.
At 28 days (1 day in moist air, 27 days in water)275 lbs.
The sand test must in all cases show an increase in
strength at 28 days over the 7 days tests.
(e) SOUNDNESS. Pats of neat cement, about three (3) inch
in diameter, one -half (J) inch thick at the center, and tapering
a thin edge, will be kept in moist air for a period of twenty -fou
hours.
A pat will then be kept in air at a normal temperature and
observed at intervals for at least twenty -eight (28) days.
Another pat will, after having been kept twenty -four hours
in moist air, be placed in water at normal temperature. The wate
shall then be heated to boiling temperature and maintained there
for three (3) hours.
These pats to satisfactorily pass the requirements, must
remain firm and hard, and must show no signs of distortion, check
ing, cracking, clotching or disintegration.
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SAND
All sand must be free from oil, coal tar of organic matter,
and must not contain more than five (5) per cent, by weight, of
clay or silt. All of the sand shall pass through a screen having
four (4) meshes per lineal inch. At least thirty -five (35) per
cent, but not more than eighty -five (85) per cent, by weight,
shall be retained on a screen having thirty (30) meshes per lin-
eal inch.
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STONE
The stone shall be screened gravel or broken stone, as
the Contractor elects and shall have a specific gravity of not
less than 2.50. It shall range in size from one - quarter (-)
inch minimum to two and one -half (221) inches in greatest demen-
sions maximum.
(a) All screened gravel shall be clean and hard, and s
not contain more than (5) per cent of sand.
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Two
(b) BROKEN STONE. Broken stone shall be the run of the
crusher, except, however, that not more than five (5) per cent of
its volume shall be material which will pass through a one - quarter
(J) inch mesh screen, and not less than thirty (30) per cent of
its volume shall be material which will pass a three - quarter (3/4)
inch mesh screen. It shall be clean hard and durable in quality,
shall range in size from the minimum noted above to such size as
will pass a two (2) inch ring, and shall pass the following test:
TESTING BROKEN STONE. The broken stone shall be uniform
in quality, shall not show more than five (5) per cent of stone
having rounded surfaces, and shall be such hard, tough material
as will show a coefficient of wear of not less than ten (10) after
being tested in the manner hereinafter specified in a Deval Abra-
sion Machine.
At least thirty;(30) pounds of coarsely broken stone, free
fm m any fragments showing rounded or water worn surfaces, shall b
available for the tests. The rock to be tested shall be broken
in pieces as nearly uniform in size as possible and at test, sam-
ples shall consist of not less than forty -nine (49), nor more
than Vifty -one (51) pieces.
The total weight of rock to be placed in each cylinder
shall be five (5) kilogrammes (eleven pounds).
811 test pieces shall be washed and thoroughly d ridd before
weighing. Ten thousand (10,000) revolution, at the rate of betwee
thirty (30) ani thirty -three (33) to the minute shall constitute a
test. Only the percentage of material worn off which will pass
through a one sixteenth (1/16) inch mesh screen, shall be con-
sidered in determining the amount of wear.
The wear shall be expressed by a coefficient known as the
coefficient of wear, which coefficient shall be obtained by the
formula C equals four hundred (400) divided by W, where C equals
the coefficient required and W the weight in grammes of the
detritus under one - sixteenth (1/6) inch in size per kilogramme
of rock used.
The rock used in the test shall be furnished by the Con-
tractor and shall be delivered by him at the testing machine when
required by the engineer.
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CASTINGS
All castings for manhole heads, covers, and other purposes
must be of tough gray iron, free from cracks, holes, swells and
cold shorts, and be of workmanlike finish and must donform to the
plans.
The quality shall be such that a blow from a hammer All
produce an indentation on a rectangular edge of the casting
without flaking the metal.
Before leaving the foundry all castings shall be thoroghly
cleaned and subjected to a hammer inspection, after which they
shall be dipped in a. preparation of asphalt or coal tar and oil
applied at a temperature of not less than 290 degrees, nor greate
than 310 degrees Fahrenheit, in such a manner as toform a firm an
tenacious coating.
EXCAVATION
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SUB -GRADE
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The sub -grade for pipe sewers shall be the exterior bottom
of the pipe, and for masonry sewers, the exerior of the masonry
composing the invert of the sewer.
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TRENCHES AND TUNNELS
Where so indicated on the Plan or Profile the sewer shall
be laid in an open trench, or in tunnels.
Where open trenches or tunnels are not so indicated, the
sewer may be laid in sections of open trenches connected by tun -
nels, the length of which tunnels shall not exceed one -half (2)
the depth of the sub -grade below the surface of the ground, proved d,
however that the tunnel length shall in no case be more than
eight (A) feet.
The minimum width of excavation for sewers in trenches and
tunnels shall be as follows:
(a) For pipe sewers six (6) inches wider on both sides,
or a total width of twelve ?12) inches ,pore than the exterior dia-
meter of the pipe.
(b) For masonry sewers]¢ the external horizontal diameter
of the sewer plus the thickness of the sheeting and wales.
Where tunnels are made, they shall be cut to a height of at
least two (2) feet above the crown of the sewer.
The excavation shall be made a sufficient distance below
the depth indicated by the grade line on the profile and shown by
the grade stakes set by the City Engineer to allow for the placing
of the sewer invert$ together with the concrete foundation if any
such foundation is specifiedon the plan or profile of said sewer.
Should the trench be excavated to a depth greater then
that herein above last mentioned the Contractor shall refill such
excess excavation with screened gravel which shall be tamped until
solid.
Where excavation in tunnels in required, the tunnel shall
be driven from shafts located at the places where manholes and
other structures are shown on the line of said tunnels, and at
such other points as may be selected by the Contractor and ap-
proved by the City Engineer.
The requirements for removing rock, as given in Section 32
of these specifications, shall apply likewise to excavation in
tunnels.
Wherever the nature of the ground will admit of its the
bottom of the excavation for masonry sewers must conform to the
outside of the lower half of the sewer.
The trench shall not be opened more than 300 feet in ad-
vance of the sewer laying, nor left unfilled for more than 200
feet in the rear thereof, unless otherwise specified.
All water pipe extensions shall be made in trenches separ-
ate from those used for sewer. Unlessotherwise specified, such
extensions shall be laid in trenches having a depth of not less
than two and one -half (22) feet below the surface of the ground a d
located at a distance from the sewer trench of not less than
three (3) feet.
Disposal of water from trenches: The Contractor shall at
all times during the progress of the work keep the trenches and e -
cavations free from water. Water from the trenches and excavatio s
shall be disposed of in such a manner as will neither cause injur
to the public health, nor to public or private property, nor to
the work completed or in progress, nor to the surface of the
streets, nor cause any interference with the use of the same by
the public.
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MANHOLES AND OTHER STRUCTURES
The excavation for all manholes and other structures shall
be ,sufficient to leave at least six (6) inches in the clear be-
tween their outer surface and the embankment or timbering which
may be used to protect them.
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REMOVING SOFT OR SPONGY MATERIAL
All soft and spongy earth or material below sub - grade, not
to exceed a depth of two (2) feet, unless otherwise shown on said
Plan and Profile, shall be removed by the Contractor and replaced
with screened gravel which shall be tamped until solid.
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BRACING TRENCHES
The sides of the excavation shall be supported with sheet
planking and bracing, and all tunnels shall be timbered, whenever
the ground will not stand unsupported, and in all cases the sheet
piling or timbers shall be drawn, as the work progresses, in such
manner as to prevent the caving in of the sides of the trench.
kll openings caused by the removal of the sheet piling of timbers
shall be filled with good earth or sand, which shall be compabted
by flooding, where sufficient water is in any manner available.
Where water is not available, said openings shall be thoroughly
tamped.
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ROCK
If the bottom of the trench is found to consist of rock,
the rock shall be removed to four (4) inches below sub -grade and t
trench refilled with four (4) inches of screened gravel whichi
shall be tamped until solid. In case any bock is blasted, the
blast shall be covered with heavy timbers. @here a line of water,
gas, sewer or other main pipe or conduitsintersects the line of
the trench, no blast, shall be made closer than five (5) feet to
the same, but the rock shall be removed without blasting. No
blasting will be allowed except by special permission in writing
from the proper municipal officers.
-33-
SPOIL BANKS
The materials excavated shall be laid compactly along the
side of the trench, and kept trimmed up so as to cause as little
inconvenience as possible to the public travel. In case the
street is not wide enough to hold the earth without stopping the
passageway on the sidwalk., the Contractor skull erect a board fenc
and keep a passageway, six feet wide, open on said sidewalk.
Free access must be left to all fire hydrants and water gat
WORK OF CONSTRUCTION
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-34-
PIPE - LAYING
After the trench for pipe sewers has been brought to the
proper line and grade in the manner above specified, the pipe
shall be laid therein in the following manner:
Before any pipe is put into place the trench bottom shall
be prepared so that each pipe shall have a firm and uniform
bearing over its entire length. All adjustment to line and grade
must be made by scraping away or filling in the earth under the
body of the pipe, and not by wedging or blocking up the hub.
All pipes previous to their being lowered into the trench
shall be fitted together and matched, so that when joined in the
trench there shall be no shoulders or unevenness along the lower
half of the pipe.
The faces of all spigot ends and of all shoulders in the
hubs or sockets must be true and brought into fair contacts and
all lumps and excrescences on said faces shall! be cut away before
the pipe is lowered into the trench.
The pipe shall be laid, without break, uphill, from struc-
ture to structures and with the socket end up grade.
Whenever the work ceases for any reasons the unfinished
end of the sewer shall be securely closed with a tight - fitting
plug or cover.
-35-
HOUSE CONNECTIONS
The Contractor shall place as many six inch "Y" branches fo
house connections in cement pipe sewers as may be designated on th
Plans. The "Y" branches unless otherwise specified, shall be in-
clinded upward at an angle not greater than forty -five degrees fro
a horizontal line. If so shown on the Plans, "T" branches shall
be substituted for "Y" branches. Each "Y1q or "T" branch is to
be closed at the outer end by a cement stoneware cap made for that
purpose, unless where designated on the Plans that house connectio
are to be laid.
The space . in the socket above the cap shall be filled with
wet sands covered with a thin coating of neat cement mortar.
When so indicated on said Plan and Profiles house connec-
tion sewers of cement pipe shall be laid from the upper end of the
Y pipe to the curb line, and the internal diameter of said house
connection sewers shall be six (6) inches. The Y pipes shall be
joined to the lateral sewer by eighth bends (said eighth bends to
be considered a part of the house connection sewer), unless other-
wise whown on the plans.
The invert of the upper end of each house connection sewer
shall be built so that It will have a fall of 1 foot in 50 feet
to the main or lateral sewer.
EXCEPTING as otherwise noted on said plans.
Lhere Drops for house connections are specified for a pipe
sewer on said Plans and Profiles, the Contractor shall build a
six inchT branch and a six inch vertical stack surmounted by a
six inch by six inch V branch set vertically as shown on detail
by Plans on file in the office of the City Engineer. If this drop
is not connected to a house connection sewers the openings in the
Y branchshall be closed by cement stoneware caps as specified
above. Where a house connection sewer is to be connected with
said drops, all bends lead ng away from the Y branch shall be con-
sidered as part of said house connection sewers unless otherwise
shown on said plan.
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-36-
MEASUREMENTS
Main sewers will be measured horizontally from center to
center of structure, along the center line of the sewers including
all specials.
House connection sewers will be measured horizontally from
the center of the main sewer to the upper end of the house con-
nection sewer.
Drops for house connections will be measured vertically fro
the flow line of the main sewer at the bottom of said drops to the
upper end of the six inch by sic incy Y branch, which forms the
top of the drops, unless otherwise specified.
-37-
PIPE JOINTS
Unless otherwise specified, the entire annular space in al.
pipe joints between the exterior of the spigot and the interior
of the socket shall be completely and carefully filled with cemen
mortar of the composition specified in Section 38. The mortar
shall then be neatly Veveled off from the outer edge of the hub
to the sides of the pipes special care being used to secure good
work at the lower part of the joint. The joints of all pipes six
teen (16) inches and over in diameter shall be carefully pointed
and wiped on the inside, and all pipes under sixteen (16) inches
in diameter shall be carefully wiped on the inside. No joints
shall be entirely cemented until the next two (2) joints in ad-
vance are laid.
When water is found in the trench a flat oakum strand of
proper size dipped in neat cement grout may be laid in the lower
part Q' the hub before the next pipe is inserted. A gasket of
oakum twisted into stra ds may then be tightly driven into the
joint from the outside so as to fill the joint to one -half (1/0
of its depth. Unless otherwise specified the rest of the joint
shall be filled with mortar composed of equal parts, by volumes
of cement and sand. No joint shall be filled until the gaskets
have been placed in the next two (2) joints in advance. Later
must not be allowed to rise up to or around the pipe or to flow
through the pipe until the mortar has set hard.
On the completion of each section of the sewer between man
holes, where the soil is wets the two ends of the s ewer at the
manholes shall be closed sufficiently to prevent the entrance of
water and tested for leakage, which if found to occur in such
quantities as would impair the efficiency of the sewer, shall be
located and stopped. Where such leaks are discovered before the
completion and acceptance of the sewers the sewer shall be immedi
ately uncovered and the leaks stopped.
The interior of the sewer shall be freed from all dirt and
foreign material as the work progresses and left clean at its
completion.
Whenever the pipe sewer is located within ten (10) feet
distance of trees, the removal of which is not included in the
contract for the sewers the joints of the pipe shall be entirely
surrounded with four (4) inches of cement concrete of the propor=
tions hereinafter described.
-38-
MORTAR
All mortar used for making pipe joints in sewers, unless
otherwise specified, shall be composed of one (1) part of cement
two (2) parts of sand, by volume. One sack of cement of 94 pound
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net weight will be considered as having a volume of one cubic
foot.
All mortar used for manholes, or other structures, the sur-
faces of which are required to be plastered with cement mortar
as indicated on the plans, shall becomposed of one (1) part of
cement to two and one half (2 *) parts of sand, by Volume unless
otherwise specified on the drawings, except that all mortar used
for plastering the interior of flush tanks, and flushing manholes
shall consist of equal parts (by volume) of cement and sand.
The cement and sand must be thoroughly mixed dry, until the
mass assumes a uniform color, and then water shall be added to giv
the mixture a proper consistency. Mortar shall be made fresh as
needed.
No mortar shall be used which has begun to set and no re-
tempering thereof will be permitted.
Mortar shall be mixed in a watertight box and in no case
on the pavement or ground.
-39-
CONCRETE
Unless otherwise specified, on the Plans concrete shall be
composed of one (1) part of cement, three (3) parts of sand, and
six (6) parts of stone, by volumes and the whole shall be thorough
mixed, so as to produce a concrete of uniform consistency.
All proportions shall be obtained by actual measurements
in boxes, and no material shall be used which has not been thus
measured.
All mixing shall be done in boxes, or upon tight platforms,
or in mixers.
As a rule, sufficient water shall be used to produce con-
crete of a mushy consistency.
Substantial forms shall be made in which to construct all
concrete work. The material for said forms shall be of such
thickness and strength as to be unyielding during the process
of placing and tamping the concrete.
When the sewer invert is made of concrete, the forms used
shall be accurately made and correctly set. They must be tight
and have a smooth inside finish which shall be cleaned and lubri-
cated whenever necessary to prevent adhesion of mortar. norms
must not be removed until the cement is set End the invert shall
be allowed to set for twelve (12) hours before the arch is turnd.
No concrete shall be used that shows evidence of having
set or that has become unfit for good work from standing too long,
on from any other cause, and no remixing of concrete will be al-
lowed.
Concrete shall not be laid in water or on a muddy foundatic
All concrete shall be well consolidated in layers not more
than eight (8) inches in thickness, with tamping bars or other
tools, until water flushes to the surface.
Concrete shall be so placed and tamped as to produce smooth
exterior surfaces where exposed. Where new work is joined to old
concrete, the surfaces of the old work shall be thoroughly cleaner
and ingistened, and a bed of neat cement mortar one - quarter ( -t) of
an inch thick shall be used to secure a bond between them.
All concrete must be kept wet and covered with earth of
other material. No wheeling, working or walking on concrete will
be allowed until it is set.
-40-
BRICK MASONRY
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The Contractor shall construct the manholes, junction
chambers, flush tanks, lamp -holes or other structures that are
called for on said Plan and Profile and fit them as required with
cast iron frames and covers, iron steps and other fixtures, full
details for all of which are shown upon Plans on file in the Of-
fice of said City Engineer.
No brick work shall be laid upon the concrete foundations
until the concrete foundation has set.
All brick work shall be built to the lines and demensions
shown upon the Plans.
All brick shall be clean and thoroughly wet immediately
before laying. Each brick shall be laid with full mortar joints
on its bed, end and side at one operation. In no case is slushing
or grouting of a joint to be allowed, nor is a joint to be made by
working in the mortar after a brick is laid.
No brick shall be laid in water and no water shall be al-
lowed to stand or run upon brick work until the mortar has set.
The brick work shall be well bonded. Unless the plans
otherwise specify the maximum width of joints, the joints between
bricks on the inside of the structure shall not exceed three -
eights (3/8) of an inch.
All joints on the inside of structures and sewers shall be
neatly struck and pointed where plastering is not specified on the
Plans. The outside of all structures shall be neatly plastered
with mortar one half (J) of an inch thick as specified in Section
38 hereof.
After the plastering on the interior of flush tanks and
flushing manholes has set, the interior surfaces shall be coated
with neat cement grout put on with a brush.
Pipe branches for lateral sewers shall be built into the
structures as shown-on the drawings, the outer ends to be closed
as specified in Section 35 hereof. In laying pipe up to manholes
or flush tanks, nopipe shall be allowed to project more than two
(2) inches thereinto, and in no case shall the bell or hub of a
pipe be built into the wall of a manhole or flush tank.
All brick work shall be protected from the sun's rays by
adequate covering, or shall be kept wet until suchtime as it can
consistently be covered with earth without in any way damaging the
work.
No wheeling, working or walking on brick work will be al-
lowed until it is set. Lhere new work is jointed to the surface
of unfinished work, the latter must be thoroughly cleaned and
moistened.
BACK FILLING
-41-
TRENCHES
After a section of pipe sewer has been laid and the mortar
used in the joints has sufficiently set, good earth, sand or
gravel free from large stones or hard lumps shall be carefully
deposited in the trench so as to fill it up to a level two (2) fee
above the top of the pipe in such a manner that the filling
placed on each side of the pipe shall be equal.
The backfilling over a masonry sewer to a height of two (2)
feet a above the crown shall be similarly made as soon as the out-
side plastering shall have thoroughly set, provided that at least
six (6) hours' time shall have expired since the completion of
the plastering. In all cases of backfilling, the utmost care must
be taken to thoroughly compact the materials used in refilling the
trench below the axis of the sewer.
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In completing the backfilling of the trenches for pipe
sewers upwards from the aforesaid level of two (2) feet above the
to p of the sewer, the filling shall be made to within one (1)
foot of the ground surfaces provided that if the trench is more
than ten (10) feet in depth the filling shall be carried only to
.a level ten (10) feet above the subgrade when it shall be thorough
ly compacted by flooding where water is in any manner availableg a
where water is not available it shall be compacted by tamping.
Then whatever remains unfilled in the trenches shall be filled,
and again thoroughly compacted by flooding where water is in any
manner available and where not available the filling shall be com-
pacted by tamping. The filling shall be thoroughly rolled with
a roller weighing not less than 250 ppunds nor more than 350 pound
per inch width of tire.
If desired by the Contractor, the backfilling above the
aforesaid two -foot level may be made by the use of scrapers.
Prior to restoring the excavated surface over the trenches,
the Contractor shall remove the backfilled material and the sur-
face for a distance of six (6) inches outside of and adjacent to
the sides of the trenches to a depth sufficient to allow the exca-
vated surface to be restored as hereinafter specified.
-42-
TUNNELS
Before the trenches are backfilled above the aforesaid two
foot level specified in Section 41, the earth above all short
tunnels connecting sections of open trenches shall be cut through
to the surface of the ground for the full width of the trench
where so indicated on the Plan or Pxfile. Where not so indicated
the earth above all said short tunnels shall be cut to a "V" shap
having the point of the "V" at the center of the top of the tun -
nel, and the slope of the "V" making an angle of not less than 45
degrees with the horizontal.
Where tunnels are specified on the plans or profiles they
shall be completely filled as soon as the sewers is laid and the
mortar in the joints of pipe sewers or the outside plastering of
masonry sewers has properly set. This filling shall consist of
earth or gravel free from large stones and shall be rammed with
proper tools until thoroughly compacted.
No flooding of these last metnioned tunnels will be re-
quired.
-43-
TUNNEL SHAFTS9 MANHOLE SHAFTS9 ETC.
The backfilling of the' shafts shall require the following
method: After the tunnels have been properly backfilled, the
shaft excavation where not coincident with the location of any
structure, is to be filled to a depth of not greater than ten (10
feet, thoroughly flooded and allowed to settleA. The partly
filled shaft shall then be filled again to a second depth of not
greater than ten (10) feet, flooded and again allowed to settle.
The process shall be continued until after ultimatesetting, the
surface of the filled -in shaft will be at the level of the surfac
of the ground. Yvhere the location of the shaft is coincident wit
any structure, a similar process for backfilling shall be used
during the progress of the construction of said structures, pro-
vided that the outside plastering has thoroughly set.
-15-
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-44-
SURPLUS MATERIAL
Surplus material not required in refilling the trench or
tunnel shall be promptly removed by the Contractor as the back -
filling progresses and disposed of by him.
-45-
UNGRADED STREETS
Whenever the sewer is built in any ungraded street, the
trench shall be refilled to the original surface of the street;
provided, however that there shall not be less than three (3) feet
of earth over the sewer; and, provided further, that where a fill
is required on which to construct the sewer, the fill shall be
made of good, sound earth, built up in layers, not more than one
(1) foot thick, and the layers thoroughly compacted by rolling or
tamping; the width and side slopes of such fill will be shown on
the Profile and Plan.
Where the trenches do not supply sufficient material of the
proper quality for making the fill, the Contractor shall supply
the deficiency.
-46-
RESQORATION OF SURFACE OVER SEWERS
In all public streets, alleys or otherpublic places, and in
sewer rights of way, the surface over and adjacent to the sides
of the trenches shall, after being backfilled and prepared as
specified in Section 41 of these specifications be restored by the
Contractor without delay in a workmanlike manner with the same
class of materials and constructkd in the samemanner as the sur-
facing or paving that was in place before the construction of the
sewers.was commenced.
-47-
REINFORCING STEEL
All steel for reinforcement bars shall be made by the open
hearth process, and shall be rolled from billets of new steel;
they shall be straight and free from seams; flaws, cracks and im-
perfections of all kinds.
Bars shall be protected at all times from mechanical injury
and from the weather and when placed in the work they shall be
free from dirt, scale, rust, paint and oil.
All bars shall be bent to the shapes shown on the plans and
in conformity with approved templets, and placed and spaced as
shown on the plans and be securely held in their positions by ap-
proved devices until the concrete has been placed around them.
-48-
PUMP.TS
The Contractor shall furnish and install in the location
indicated on the plans of the pumping stations, bottom suction,
vertical, submerged, centrifugal type pumps with balanced open
impellers of the capacity designated on the plans.
The motors shall be of the hourse power designated on the
plans to suit available current, they must operate continually
without any signs of sparking or o erload and must not show a ris
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in temperature of more than 40 degrees above surrounding atmospher,
They shall be of the vertical type with enclosed top heads and
self oiling bearings.
Pumps are to be directly connected to motors by flexible
couplings immediately below the motors. They shall be suspended
from the floor of the pump room by flanged pipe hangers in which
pump shafts shall be enclosed and which shall not be used as disch;
pipes. Pump shafts and impellers shall be supported by genuine
babbit thrust and guide bearings and intermediate guide bearings
inserted in hanger pipes in all cases where depth of basin is six
(6) feet or over. All bearings shall be supplied with grease by
one compression grease cup located above the floor line.
Suction of pumps shall be fitted with a heavy iron strainer
of large area.
Discharge connections shall be furnished and installed with
all proper fittings and property mounted on floor of pump room
with flanged pipe hangers.
Automatic Controllers shall be mounted on the floor of the
pump room and shall include automatic float switchesq operated by
copper floats with guided brass rods, float pipesq knife switches
and fuses, phase protective devices for polyphase motors and re-
sistance starters if size of motors requires them. Space must
also be provided on the controller panel for meter.
Stuffing boxes and gaskets must be provided in all cases
to make the floor of the pump room gas tight.
The contractor shall furnish and make all electical con-
nections complete in every respect ready to connect with the
meter, in accordance with the specifications of the National
Board of Fire Underwriters.
-49-
SEPTIC TANK AND PUMPING STATIONS
Septic Tank and pumping stations shall beconstructed in
accordance with the materials specified on the plans and details
and in the manner and of the dimensions shown onsaid plans. The
concrete shall be placed in continuous operations and in such a m�
ner that all wallsq floordq etc. are secruely bonded and forming
a homogeneous mass, well finished and in every respect complete
and in accordance with the requirements contained in these speci-
fications as to materials, mixing and lgying5 excepting as may
be otherwise specifically designated on the plans.
-50-
The City Clerk shall certify to the passage of this Resolu-
tion and shall cause the same to be entered in the Book of Reso-
lutions and a minute of the passage thereof in the records of the
Board of Trustees of the meeting at which it was passed.
Passed and approved this 10th day of June, 1918.
Attest:
J. Royal Lemon_
City Clerk
resident of the
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c j
STATE OF CALIFORNIA )
COUNTY OF ORANGE ) ss
CITY OF NEV;PORT BEACH )
Iq J. Royal Lemon, City Clerk of the City of Newport Beach,
do hereby certify that the foregoing Resolution No. 97 was passed
by the Board of Trustees of the City of Newport Beach on the 10th
day of June, 1918, by the following vote, to wit:
AYES9 COUNCILMEN: J. P. Greeley, J. J. Schnitker, Geo. P. Wilson,
J. C. McCain, L. S. Wilkinson
NOES9 COUNCILMEN: None
ABSENT, Trustees: None
J. Royal Lemon
City Clerk of the City of Newport
Beach
-18-
STATE OF CALIFORNIA )
00 COUNTY OF ORANGE ) ss
CITY OF NEWPORT BEACH)
I, C. K. PRIEST, City Clerk of the City of Newport
Beach, California, do hereby certify that according to
the records of the City of Newport Beach filed and main-
tained in my office, the foregoing Resolution No. 97
was duly and regularly adopted, passed, and approved by
the City Council of the City of Newport Beach, California,
at a regular meeting of said City Council held at the
regular meeting place thereof, on the 10th day of
June y , 19 18 , by the following vote,
to wit:
AYES, COUNCILMEN: J. P. Greeley, J. J. Schnitker, Geo.
P. Wilson= J. C. McCain L. S. lA lkinson
NOES, COUNCILMEN: None
ABSENT COUNCILMEN. None
Dated this 25 day of
March
, 1955
City Clerk and Ex- Officio Clerk
of the City Council, City of
Newport Beach, State of California.
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