HomeMy WebLinkAbout0025-86 S-7 Specifications1. SCOPE OF WORK:
SECTION 2A
EARTHWORK
A. Extent: The work required under this section consists of all excavating, filling,
rough grading and related items necessary to complete the work indicated on the
drawings and described in the specifications.
1. In general the items of work to be performed under section shall include:
clearing and grubbing, removal of trees and stumps (where required), protection
of trees to remain, stripping and storage of topsoil, f i l l compaction and rough
grading of entire site within the contract limit lines as indicated on the drawings.
2. Excavated material that is suitable may be used for fills. All unsuitable
material and all surplus excavated material not required shall be removed from
the site. The location of dump and length of haul shall be the contractor's
responsibility.
3. Provide and place any additional f i l l material from off the site as may be
necassary to produce the grades required. Fill obtained from off site shall be of
kind and quality as specified for fills herein and the source approved by the
Architect.
4. The Contractor shall accept the site as he finds it and shall remove all trash,
rubbish and debris from site prior to starting excavation.
B. Work not included: The following items of related work are specified and included
in other sections of these specifications:
1. Excavation, grading and b a c k f i l l i n g for utility lines.
2. Seeding, sodding, mulching and fertilizing.
3. Storm and sanitary sewer systems.
4. Plant materials and planting for landscape.
2. BENCH MARKS:
Maintain carefully all bench marks, monuments and other reference points; if ditturbed
or destroyed, replace as directed.
3. REMOVAL OF TREES:
A. Remove all trees and stumps from area to be occupied by road and surfaced areas:
Removal of trees outside these areas shall only be done as noted on drawings or
approved by the Architect.
8. All brush, stumps, wood and other refuse from the trees shall be removed to disposal
areas off of the site. Disposal by burning shall not be permitted.
PROTECTION OF TREES:
A. General Protection: The contractor shall be responsible for the protection of tops,
trunks and roots of existing trees on the project site that are to remain. Existing
trees subject to construction damage shall be boxed, fenced or otherwise protected
before any work is started do not stockpile within branch spread. Remove inter-
fering branches without injury to trunks and cover scars with tree paint.
STRIPPING OF TOPSOIL:
A. Remove top soil to a depth of 6 inches from the areas to be occupied by roads, walks
and parking areas. Pile and store top soil at a location where it will not interfere
with construction operations. Topsoil shall be reasonably free from subsoil, debris
and stones.
DISPOSITION OF UTILITIES:
A. Rules and regulations governing the respective utilities shall be observed in
ex+dovti all work under this section.
B. Where active utilities are encountered but not shown on the drawings, the Engineer
shall be advised before work is continued.
C. Inactive and abandoned utilities encountered in excavating and grading operations
shall be reported to the Engineer.. They shall be removed, plugged or capped as
directed by the Engineer..
SITE GRADING:
A. Grades: Do all cutting, f i l l i n g compacting of f i l l s and rough grading ,required to
bring entire project area to subgrade as shown on the drawings.
B. Rough Grading: The tolerance for paved areas shall not exceed 0.10 feet above
established subgrade. All other areas shall not exceed 0.10 feet plus or minus the
established grade. Provide roundings at top and bottom of banks and other breaks
in grade.
I. SCOPE OF WORK:
SECTION 28
STORM AND SANITARY SEWER SYSTEMS
The work under this Section includes all sanitary sewers, storm sewers, manholes, catch
basins, cleanouts, storm water inlets, and related items, including excavating and
backfilling, necassary to complete the work shown on the drawings, starting two feet
outside the building walls. The ends of sewers shall be tightly plugged or capped at
the terminal points, adjacent to buildings, pending the connecting of all such lines
to the building drain as specified in the plumbing section.
MATERIALS:
A. Sanitary Sewers:
1. All gravity plastic sewer pipe and fittings shall conform to ASTM D3034, SDR -35.
2. Extra strength vitrified clay sewer pipe conforming to ASTM C -700 latest revision,
with compression joints conforming to ASTM C -425 latest revision.
3. ARS Sewer Pipe and fittings shall conform to ASTM D2680 ASTM D2751 latest revisior
B. Storm Sewers
I. Reinforced concrete sewer pipe conforming to ASTM C -76 latest revision with
joints conforming to ASTM C -443 latest revision.
2. Corrugated metal pipes shall be standard Helical pipe made from zinc coated iron
or steel sheets which shall conform to ASTM A -441. latest revision. Couplers
shall be made of the same zinc coated base metal as the pipe. When s pec i f iced
the pipe shall be uniformly bituminous coated inside and out to a minimum
thickness of .05 inches.
C. Manholes:
1. Precast reinforced concrete manhole sections and steps shall conform to ASTM
C -478 latest revision.
2. Castings shall be of uniform quality, free from blow holes, porosity, hard spots,
shrinkage distortion or other-defects. They shall be smooth and well cleaned
by shotblasting or by some other approved method. They shall be coated with
asphalt paint which shall result in a smooth coating, tough and tenacious when
cold, not tacky or brittle. They shall be gray iron meeting ASTM A -48 latest
revision.
Joints Manhole sections shall be jointed with either mastic in bulk; stick or
,rubber type gaskets. The rubber type gaskets shall meet ASTM C -443 latest
3. APPLiCATiON:
A. Permits and codes: The intent of this section of the specifications is that the
contractor's bid on the work covered herein shall be based upon "the drawings and
specifications but that the work shall comply with all applicable codes and regul-
ations as amended by any waivers. Contractor shall furnish all bonds necessary to
get permits for cuts and connections to existing sewer.
B. Local Standards: The term "Local Standards" as used herein, means the standards of
design and construction of the respective municipal department or utility company.
C. Existing Improvements: Maintain in operating condition all active utilities,
sewers and other drains encountered in the sewer installation. Repair to the
satisfaction of the owner any damage to existing active improvements.
D. Workmanship: To conform to all local, state and national codes and to be approved
by all local and state agencies having jurisdiction.
E. Trenching: Lay all pipe in open trenches, except when the local authority gives
written permission for tunneling. Open the trench sufficiently ahead of pipe
laying to reveal any obstructions. The width of the trench shall be the inside
pipe diameter plus 24 inches for 12 inches above the pipe. Sheet and brace trench
as necessary to protect workmen and adjacent structures. All trenching to comply
with the Occupational Safety and Health Administration Standards. Keep trenches
free from water while construction is in progress. Under no circumstances lay pipe
or appurtenances in standing water. Conduct the discharge from trench dewatering
to drains or natural drainage channels.
F.. Special Supports: Whenever, in the opinion of the Engineer, the soil at or below
the pipe grade is unsuitable for supporting sewers and appurtenances specified in
this section, such special eupport, in addition to those shown or specified, shall
be provided as the Engineer may direct, and the contract will be adjusted.
G. Backf i l l i ng: For a depth of at least 12 inches above the top of the pipe, backfill
with earth or granular material free from large stones, rock fragments, roots or
sod. Tamp this backfill thoroughly, taking care not to distrub the pipe. For the
remaing trench depth, backfill with earth or granular material containing stones or
rocks not larger than 4 inches. Backfill under walks, parking areas, driveways and
streets shall be granular material only thoroughly compacted.
H. Manhole Inverts: Construct manhole flow channels of concrete, sewer pipe or brick,
smoothly finished and of semi circular section conforming to the inside diameter of
the connecting sewers. Make changes in size or grade gradually and changes in
direction by true curves. Provide such channels for all connecting sewers at each
manhole.
I. Infiltration: Furnish necessary equipment to test sewers for infiltration. Infil-
tration rates shall not exceed the Local Standards.
J. Flushing Sewers: Flush all sanitary sewers except building sewers with water to
obtain free flow through each line. Remove all silt and trash from appurtenances
just prior to acceptance of work.
K. Plastic sewer pipe shall be installed in accordance with A.S.T.M. D232I per
latest revision, and no plastic pipe shall exceed a deflection of 5
I. SCOPE OF WORK:
2. MATERIALS:
D. Valves: All valves and stops shall
for the proper installation in th
meet local standards or, in the
I. Valves in cast iron pipe
conforming to AWWA Spe
as these used in the
2 inch wrench nuts.
E. 2. Valves in copper
with T heads.
SECTION 2C
WATER MAINS
A. The work required under this section includes all cold water distribution lines,
valves, meter pits, hydrants, and related items including occavat i ng and backfilling-
necessary to complete the work shown on the drawings. The ends of water service
lines shall be tightly plugged or capped at the terminal points pending the connect-
ing grail such lines of the building piping as specified in the plumbing section.
A. Cast iron Pipe: Cast iron pipe shall meet AWWA Specification•C -106 with push -on
joints meeting AWWA Specification C -III. Wall thickness shall be determined from
Table 6.4 in AWWA C -I06. Ductile iron pipe shall meet AWWA C -150 and C -151
Specifications. Pipe to be cement l i n e per AWWA C -104.
B. Copper Tubing: Shall be seamless, annealed copper tubing complying with Federal,
Specification WW -T -799. Fittings shall be wrought copper or cast bronze with solder
joints. Solder shall be of a composition recommende• by the manufacturer of the
fittings.
C, Fire Hydrants: Shall comply with AWWA Specific
standards and requirements, particularly as t
ion of opening and dimensions of operating
one pumper and two hose nozzles. A valve
inlet connection. The length of the hyd
specified depth of cover over the pipe
and shall meet local
meters and threads, direct
Fire Hydrants shall have
less than 5 inches and a 6 inch
shall be determined by the
u i ted or adaptors shall be provided,
hich they are located. Valves shall
such standards, the following requirements
on body, bronze mounted, disc gate valves
-500. They shall open in the same direction
orks system. Valve stems shall terminate in
o (2) keys.
be standard brass body, round -way, ground -key stops,
(2) keys.
Valve Boxes: Shal nee ocal standards or, in the absence of such, shall comply
with the following r_ rements:
1. For iron body valves, boxes shall be approved standard buffalo -type; cast iron,
adjustable shaft boxes, having a minimum shaft diameter of 5 4/4 inches.
2. For brass body valves (stops) boxes shall be approved standard cast iron exten-
sion service boxes, having a minimum diameter of 2 -1/2 inches and having lid
held in place by a brass or bronze bolt. The castings shall be coated with two
.hosts, of coal-tar pitch varnish. Furnish two (2) keys for bolt in lids.
F. Plastic Pipe: Shall conform to ASTM D- 2241 -SDR 26 with solvent weld joints
conforming to ASTM D -2855.
3. APPLICATION:
A. Permits and Codes: The intent of this section of the specifications is that the
contractor's bid on the work covered herein shall be based upon the drawings and
specifications but that the work shall comply with all applicable codes and regul-
ations. Contractor shall furnish all necessary bonds to get permits for cuts and
connections.
B. Existing Improvements: Maintain in operating condition all active utilities and
sewers and other pipe system that may be encountered.
C. Trenching: Lay all pipe in open trenches, except when local authority gives written
permission for tunneling. Provide a separate trench for the water line at least 10
feet horizontally from any sanitary sewer. In locations where seperate trenches for
sewer and water lines are impracticable, lay the water pipe on a solid shelf at
least 18 inches above the top of the sewer.
D. Width of Trench: Excavate trenches 12 inches each side of the pipe for proper
installation of pipe.
E. Sheeting and bracing: Sheet and brace trenches as necessary to protect workmen
and adjacent structures. All trenching shall comply with the Occupational Safety
and Health Administration Standards.
F. Water Removal: Keep trenches free from water while construction therein is in
progress. Under no circumstances lay pipe or appur ances in standing water.
Conduct the discharge from trench dewatering to •in •r natural drainage
channels.
G. Grading Trench Bottoms: The bottom quadran
uniformly supported. The full load shall
trench may be excavated to a depth of 4
sand, crushed stone or gravel backf i i
For a depth of at least 12 inches a
or granular material free from lar
backfill thoroughly taking care
parking areas, driveways and s elf g
thoroughly.
H. Tests: Before joints ar
or other outlets to ex
least two hours at a
for leakage and re
mains, flush out
has been flush
of the health
1. Shop Drawings: Sub Shop Drawings of hydrants and valves to City Engineer for
approval.
u. If a horizontal distance of 10 feet cannot be maintained between the water line
SCOPE OF WORK:
The work required under this section includes aft concrete and bituminous paving and
related items necessary to complete the work indicated on drawings and described in
specifications, including but not limited to:
2. MATERIALS:
A.
8.
C.
3 APPLICATION:
11 the piping with water, opening hydrants
st the piping for leakage for a period of at
00 pounds per square inch. Inspect all joirts
s. Upon completion of the water distribution
ntil the water runs clear. As soon as the system
11 be sterilized in accordance with the requirements
aving jurisdiction.
and sanitary sewer line, one of the following shall be done.
a. Water line laid in a separate trench and 18" above sewer.
shall be f u l l y and
barrel of the pipe. The
re below final grade with
back to pipe laying grade.
of the pipe, backfill with earth
oots or frozen clods. Tamp this
rb the pipe. Backfill under walks,
ranular materi only and tamp
b. Water l i n e laid in same trench on a bench of undisturbed earth and sewer at
least 18" below bottom of water line.
Where water lines and sewers cross and the water line cannot be placed above the
sewer with a minimum of 18 inches vertical clearance; the sewer must be constructed
of water works grade cast iron pipe with mechanical joints within ten feet of
the water line.
SECT I ON.- SID
STREETS AND WALKS
All streets and parking areas in contract limits.
Curbs and Gutters
Walks
Exterior Steps
CoAcrete: Shall be ready -mixed concrete and shall be a mix of proportioned fine
and coarse acgregates with Portland cement and water. Minimum cement content
shall be 6 bags per cubic yard of concrete and maximum water content shall be 5,5
U.S. gallons per sack of cement, including moisture in the aggregate. Slump for
normal weight concrete shall be a maximum of 4 inches and a minimum of 2 inches.
The slump of machine placed concrete shall be no less than 1 1, inches nor more
than 2 inches. Standard test AST4 C- I43 shall be used to measure slump. Com-
pressive strength of concrete at 28 days shall be 4000 psi. All exterior concrete
shall have air entrainment of 5% to 8% by volume per ASTM C -260. Reter ner i nq of
delivered concrete will not be allowed. Concrete shall he composed of.
1. Portland Cement: Conforming to ASTM C- 150,tYPeIA or Type Ilia.
2. Aggregates: Conforming to ASTM C -33.
3. Water: Shall be clear and free from injurious amounts of oils, acids,
alkalies, organic materials or other deleterious substances.
Welded Steel Wire Fabric: Where required for concrete reinforcement shall conform
to ASTM A185.
Premoulded Joint Filler: Shall be of non extruding type meeting ASTM D -544,
except that premoulded joint 'filler used in concrete walk construction may be
either non extruding or r esilleDt1
D. Bituminous Pavement Materials: All materials proposed for the construction of
bituminous pavements shall comply with the Indiana State Highway Specifications,
per latest revisions.
E. Compacted Aggregate Subbase: Shall be crushed stone or gravel. Crushed gravel
shall be a minimum of 35% crushed material. Chert shall be limited to a maximum
of 8% of the total. Material shall be free from an excess of flat, elongated,
thinly laminated, soft or disintegrated pieces; and shall be free from fragments
coated with dirt. Compacted aggregate shall be graded as follows:
SIEVE SIZE PASStal (Square openings by weight)
1"
2
#4
#8
#30
#200
100
80 -100
70 -90
'55 -80
35 -60
25 -50
12 -30
5 -10
A. Grading: Do any necessary grading in addition to that performed in accordance with
Section 2A Earthwork, to bring subgrades, after final compaction, to the required
grades and sections for site improvement.
D. Preparation of Subgrade: Remove spongy and otherwise unsuitable material and
replace with stable material.
C. Compaction of Subgrade: The first 6 inches below the subgrade shall be compacted to
at least 95% of the maximum dry density as determined by the provisions of AASHO
T -99. Water shall be prevented from standing on the compacted subgrade.
0. Utility Structures: Check for correct elevation of all manhole covers, valve boxes
and similar structures located within areas to be paved, and make, or have made, any
necessary adjustments in such structures.
E. Placing Concrete:
1. Subgrade: Place concrete only on a moist, compacted subgrade or base free from
loose material. Place no concrete on a muddy or frozen subgrade.
2. Forms: Ali forms shall be,free from warp, tight enough to prevent leakage and
substantial enough to maintain their shape and position without springing or
settling, when concrete is placed. Forms shall be clean and smooth immediately
before concreting.
3. Placing Concrete: Concrete shall be deposited so as to require as little
rehandling as practicable. When concrete is to be placed at an atmospheric
temperature of 35 F or less, paragraph 702.10 of the Indiana State Highway
Specifications, latest revision shall be followed.
F. Concrete Walks and Exterior Steps:
1. Slopes: Provide 1/4 inch per foot cross slope. Make adjustments in slopes at
walk intersections as necessary to provide proper drainage.
2. Dimensions: Walks and steps shall be one course construction and of widths and
details shown on the drawings.
3. Finish: Screed concrete and trowel with a steel trowel to a hard dense surface
after surface water has disappeared. Apply medium broom finish and scribe
control joints at 5 foot spacing. Provide expansion joints where sidewalks
intersect, and at a maximum spacing of 48 feet between expansion joints.
G. Concrete Curb and Gutter:
1. Expansion Joints: Shall be l inch thick premoulded at ends of all returns and
at a maximum spacing of 100 feet.
2. Contraction Joints: Unless otherwise provided, contraction joints shall be
sawed joints spaced 20 feet on center.
3. Finish: Tamp and screed concrete as soon as placed, and fill any honey combed
places. Finish square corners to 1/4" radius and other corners to radii shown.
H. Curing Concrete: Except as otherwise specified, cure all concrete by one of the
methods described in Section 501.17 of the Indiana State Highway Specifications,
latest revisions.
1. Bituminous Pavement: Hot asphalt concrete ,pavement shall be as specified in Section
403 of the Indiana State Highway Specifications, latest revision. Paving will not
be permitted during unfavorable weather or when the temperature is 40 F and falling.
J. Compacted Aggregate Subbase: The thickness shown on the drawings is the minimum
thickness of the fully compacted subbase. Compaction shall accomplished by rolling
with a smooth wheeled roller weighing 8 to 10 tons. Compact to 90% compaction
using Standard Testing Procedures. Along curbs, headers and walls and at all places
not accessible to the roller, the aggregate material shall be tamped with mechanical
tampers or with approved hand tampers.
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