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VII STORM SEVER SYSTEMS
A. SCOPE 13F WORK
The work under this section includes all storm sewers, storm water
inlets, and related items, including excavating and bockfilling,
necessary to complete the work shown on the drawings.
B. MATERIALS
1. Storm Sewers:
Reinforced concrete sewer pipe shall conform to ASTM C -76 latest
revision with joints conforming to ASTM C-443 latest revision.
2. Manholes:
A. Precast reinforced concrete manhole sections and steps shdil
conform to ASTM C -478 latest revision.
R 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 shotblosting 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.
C. Joints - manhole sections shall be jointed with rubber type
gaskets. The rubber type gaskets shall meet ASTM C -443 latest
revision
3. SUBDRAINS:
Perforated plastic pipe subdrains shall conform to ASTM D 3034 SDR
35.
C. APPLICATION
1. 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 regulations as amended by any
waivers. Contractor shall furnish all bonds necessary to get permits
for cuts and connections to existing sewers.
2. Local Standards: The term 'Local Standards' as used herein means the
standards of design and construction of the respective municipal
department or utility company.
3. 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.
4. Workmanship: To conform to ail local state and national codes and to
be approved by all local and state agencies having jurisdiction.
5. 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_ 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.
6. Special Supports: Whenever, in the opinion of the archectect and /or
the Engineer, the soil at or below the pipe grade is unsuitable for
supporting sewers and appurtenances specified in this section, such
special support, in addition to those shown or specified shall be
provided as the Engineer may direct, and the contract will be
adjusted.
7. Backf#ling; For depth of at least 12 inches above the top of the
pipe, backfitl with earth or granular material free from large
stones, rock fragments, roots or sod. Tamp this backF41 thoroughly
taking care not to disturb the pipe. For the remaining trench depth,
backfili with earth or granular material containing stones or rocks
not larger than 4 inches. Backfill under walks, parking areas,
driveways and street shall be granular material only - thoroughly
compacted by approved methods. Trenches parallel to an within 10
feet of paved roadways shall be constructed the same.
8. Manhole Inverts: Construct manhole flow channels of concrete 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.
9. Subdroins: All subdrains onsite shall be of the size as shown and
shall be placed as shown on the plans. They shall be constructed to
the grades placed as shown on the plans. They shat( be constructed
to the grades shown. All drains constructed OFF site as part of the
outlet drain will be located as shown.
10. Utilities: It shall be the responsibility of each contractor to
verify all existing utilities and conditions pertaining to his phase
of the work. It shall also, be the contractors responsibility to
contact the owners of the various utilities before work is started.
The contractor shall notify in writing the owners or the engineer of
any changes, errors or omissions found on these plans or in the Field
before work is started or resumed.
VIII UTILITIES
B. Electric and Telephone
1. Conduit shall be required For all crossings under pavement areas.
2. Granular backFritl shall be required for all crossings under pavement
areas.
3. Concrete pads for electric and telephone transformers shall be set at
the approximate ground grade as shown on the Site Development Grading
Plans for the respective locations.
C. Rules and regulations governing the respective utilities shall be
observed in executing all work under this section,
D. The contractor shall notify in writing the owners and the engineers of
any changes, errors or omissions found on these plans or in the Field
before work is started or resumes.
E. Where active utilities are encountered but not shown on the drawings,
the Engineer shall be advised before work is continued.
F. 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.
IX, GRANULAR BACKFILL
Shall be in accordance with INDUT Standard Specifications.
X PAVEMENT CONSTRUCTION
A. SCOPE OF WORK
The work required under this section includes all
site concrete and bituminous paving and related items necessary to
complete the work indicated on drawings and described in the
specifications, including but not limited to:
1. All streets, parking areas in contract limits
2. Curbs and gutters
3. Sidewalks and concrete slabs, exterior steps
B. MATERIALS
1. Concrete: Concrete shall be ready -mixed and shall be a mix of
proportioned Fine and coarse aggregates 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 -114 inches nor more than 3 •inches. Standard test ASTM C -143 shall
be used to measure slump, Compressive 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, Retempering of
delivered concrete will not be allowed. Concrete shall be composed
OF:
A. Portland cement: conforming to ASTM C-150, Type IA or type ILIA.
B. Aggregates conforming to ASTM C -33.
C, Water: Shall be clear and Free From injurious amounts of oils,
acids, organic materials or other deleterious substances.
2. Welded Steel Wire Fabric Where required for concrete reinforcement
shall conform to ASTM A185.
3. Premouided Joint Filler; Shall be non - extruding type meeting ASTM D-
544, except that premoulded joint filler used in concrete walk
construction may be either non - extruding or resilient.
4. Bituminous Pavement Materials All materials proposed For the
construction of bituminous pavements shall comply with the Indiana
Department of Highways SpeciFications, per latest revisions.
5 Compacted Aggregate Sub -base: Shall be crushed stone or gravel.
Crushed gravel shall be a minimum of 35% crushed material. Fines
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 % PASSING
1 -1 2' 100
1• 80 -100
3 -4' 79 -90
1/2• 55 -80
#4 35 -60
#8 25 -50
#30 12 -30
#200 5-10
C. APPLICATION
1. Grading: Do any necessary grading in addition to that performed in
accordance with Earthwork Section, to being subgrades, after Final
• compaction, to the required grades and sections for site improvement.
2. Preparation of Subgrade: Remove spongy and otherwise unsuitable
material and replace with stable material. No traffic will be
allowed on prepared subgrade prior to paving.
3. Compaction of Subgrade: The first 6 inches below the subgrade shall
be compacted to at least 100% of the maximum dry density as
determined by the provisions of AASHTO T -99. Water shall be prevented
From standing on the compacted subgrade.
4. Utility Structures: Check For correct elevation of all manhole
covers, valve boxes and similar structures located within areas to be
paved and mark, or have made any necessary adjustments in such
structures.
5. Placing Concrete:
A. Subgrade: Place concrete only on a moist, compacted subgrade of
base free From loose material. Place no concrete on a muddy or
Frozen subgrade.
B. Forms: All 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 connecting.
C. Placing Concrete: Concrete shall be deposited so as to require as
little as practicable. When concrete is to be placed at an
atmospheric temperature of 35 degrees F, or less, paragraph 702.10
OF the Indiana Department of Highways Specifications, latest
revision shall be followed.
6. Concrete Curb and Gutter
A. Expansion Joints: Shall be 112 inch thick premoulded at ends of
all returns and a maximum spacing of 100 Feet
B. Contraction Joints: Unless otherwise provided, contraction joints
shall be spaced joints spaced 20 feet on center.
C. Finish: Tamp and screen concrete as soon as placed, and Fill any
honeycombed places. Finish square corners to 114 inch radius and
other corners to radii shown
7. Concrete Walks and Exterior Steps
A. Slopes: Provide 114 inch per foot cross slope. Make adjustments
in slopes at walk ;ntersect,ons as necessary to provide proper
drainage.
B. Dimensions: Walks and steps shall be one course
construction and of widths and details shown on the drawings -
C. 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
112 expansion joints where sidewalks intersect, and at a maximum
spacing of 48 feet between expansion joints.
8. Curing Concrete: Except as otherwise specified, cure all concrete by
one of the methods described in Section 501.17 of the Indiana
Department of Highways Specifications, latest revision.
9. Bituminous Pavement: Hot asphalt concrete pavement shall be a
specified in Section 403 of the Indiana Department of Highways
Specifications, latest revisions. Paving will not be permitted
during unfavorable weather or when the temperature is 40 degrees F
and falling.
10. Compacted Aggregate Sub -base: The thickness shown on the drawings is
the minimum thickness of the fully compacted sub -base: Compaction
shall be accomplished by rolling with a smooth wheeled roller
weighing 8 to 10 tons. Compact too 90% compaction using Standard
Testing Procedures. Along curbs, headers and walls and at all placed
not accessible to the roller, the aggregate material shall be tamped
with mechanical tampers or with approved tampers,
R
XI FINISH GRADING AND SEEDING (Developer shall des,gno to to a t,on if r'equ,red.)
A. Over the approved rough grade (see Section IV), spread 4' minimum of
topsoil or approved fill to such depth as will Finish to the required
finish grades and contours after rolling and noturul settlement. New
grades shall slope uniformly between levels established on the plans, and
intersections of new grades with existing grades sf,all be uniform and
smooth.
B. Fertilizer and Agricultural Limestone. Fertilizer and ogr,cultural
limestone shall be spread uniformly over the area to be seeded. They
shall be mixed into the top two inches of soil with a disk harrow, rotary
tiller, or other approved equipment. Fertilizer Shull be spread at the
rate of 800 pounds per acre, unless otherwise spec,F;ed.
C. A seeding mixture in the areas where stripping, cuts, or Fills have been
graded shall be seeded For silt and erosion protection at a rate listed
in the Seasonal Soil Protection Chart table contained elsewhere in the
plans. Wood cellulose fibre, straw or mulch, as approved by the Engineer,
shall be applied at a rate of 3/4 tons per acre.
XII LIME MODIFIED SOIL (Developer shall designate location if required
A. Lime ModiFication shall be used to improve the upper 12' of subgrade that
does not conform to Section 207 of the 1978 Indiana Department of
Highways Specifications. The lime used shall be 'Polyhydrated Lime, Code
'L', as manufactured by Mississippi Lime, or equal The Following
construction procedures shall be utilized.
1. The subgrade shall be placed to the proper grade and cross - section.
2. Lime shat( be dry placed on the subgrade at on application rate of 24
through 36 pounds per square yard as d,rected by the Engineer. The
lime and soil shall then be mixed by tractor -drown d,sc harrows,
scariFiers, rotary mixers, r Front end loaders equipped with bucket
teeth. Several passes shall be made to a dept'-, of I2' as directed by
the Engineer.
3 Initial compaction shall be performed with a sheFpsfoot roller The
soil and lime shall be compacted in 6' lifts until tl-,e proper grade
and cross - section of the subgrade is obtained Th,s w,ll be done by
blad,ng the excess to one lane and compacting the mixed lime and so,l
,n the 6' lifts. The Final passes shall be made with o steel wheel or
pneumatic-tired roller approved by the Engineer
4 The density of the soil -lime mixture will be determned by INDUT near-
the end of the Finishing operations. Any portion or the soil -lime
mixture not passing the density requirements shall be corrected, or
removed and replaced. The in place dry density shall be determined b�
the Department of Transportation in accordance with AASHTO T -191
5. When compaction of the lime -soil mixture .s neor,ny completion, the
surface shall be sloped to the required l,nes, erodes, and cross-
section and compaction continued using a steel wheeled roller unt l
the minimum specified density is obtained.
'6. The surface shall be maintained ;n a moist condit,on by means of u
fine spray of water during all Finishing operations. The treated
material shall be maintained in a moist condition by Sprinkling with
water for a period of seven days. Traffic of all types shall be kept
off of the lime modified soil For seven days, or thereafter until in
the opinion of the Engineer the lime - modiF,ed soil w,ll support
traffic without being damaged. When allowed on the subgrude, traf f,c
shall exercise Further care in driving over so (is not to tear up the
subgrade.
7. Caution; Lime and line mixtures are caustic in nature The
manufacturer of the lime shall be consulted to determine what spec,pl
precautions are required to protect the sk,n, and particularly the
eyes.
XIII REMOVAL OF PAVEMENT, SIDEWALKS, CURBS, ETC.
A. Pavement removal shall consist of the removal and satisfactory disposal
of bituminous pavement or the total of any ,.omb,not,on of base, binder
and surface course of any pavement on a r,(1,d base (including the base)
B. Prior to performing the work of pavement removal at locations indicated
on the plans; or where directed, cement concrete pavement to b removed
shall be cut with a power driven concrete saw along designated lines.
Sawing shall be such that any portion of the pavement to remain in place
will not be damaged. Any portion that is damaged removed outside the
designated lines shall be replaced by the Contractor at his expense
XIV SEALING CRACKS AND JOINTS IN BITUMINOUS PAVEMENT
A. ReFlection cracks and joints, both longitudinui and
transverse, as well
as checked, cracked, and alligatored areas shall
be seated using from
0.10 to 015 gallon per square yard of AE-90 or
AL -150 bituminous
material and covering with either No. 14 -2 or No
1' sand The cracks.
joints and alligatored areas shall be cleaned by
blowing with compressed
air or other suitable means prior to the plac-,n�4
of the bituminous
sealing material. The bituminous material shop be
u!lowed to penetrate
the cracks and joints ;n the existing surface and
any surplus shall be
squeegeed back and forth over the area to refill
them. Any excess
material shall be squeegeed OFF the pavement
The sealed surface snoll
be covered w,th approximately 5 pounds of ,and
per square yard.
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"Holey Moley" says. 3`
"DON'T DIG BLIND"
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1 -600 1 -900
392 -5544 429 -5200
wm tip.•. w,Wift Walk-
PER INDIANA STATE LAW IS- 69 -19`l IT IS
AGAINST THE LAW TO EXCAVATE WITHOUT
NOTIFYING THE UNDERGROUND LOCATION SERVICE
TWO (2) WORKING DAYS BEFORE COMMENCING w❑Rk.
ALLAN H. WEIHE REG
INU P.E. #8827
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