HomeMy WebLinkAbout12090092.2YORK
;OPE OF WORK
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
sppecifications. The Contractor shall notify in writing
the owners and the Engineer of any changes, errors
or omissions found on the plans or in the field
before work is started or resumed.
1. In general, the items of work to be
performed under this section shall include:
clearing and grubbing, removal of trees and
stumps (where required), protection of trees
to remain, stripping and storage of topsoil,
fill compaction and rough grading of entire
site.
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 durpp and length of haul shall be
the Contractors responsibility.
3. Provide and place any additional fill
material from off the site as may be
necessary 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 Owner.
4. The Contractor shall accept the site as he
finds it and shall remove all trash, rubbish
and debris from the 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:
:xcavation, grading and backfilling for
utility lines
2. Storm drainage systems
3. Sanitary sewer systems
4. Streets and paving
5. Water supply system
BENCH MARKS
Maintain carefully all bench marks, monuments and other
other reference points; if disturbed or destroyed,
Contractor shall pontact engineer. Replacement shall
be at Contractors expense.
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 Owner.
B. 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 unless proper permits are
obtained (where applicable).
burr pits :3
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
interfering branches without injury to trunks and
cover scars with tree paint.
HANDLING OF TOPSOIL
A. Remove all organic material from the areas
to be occupied b buildings, roads, walks and
parking areas. File and store topsoil at a location
where it will not interfere with construction
operations. Topsoil shall be reasonably free from
subsoil, debris, weeds, grass, stones, etc..
B. After completion of site grading and subsurface
utility installation, top soil shalt be replaced in
areas design ted on the erosion control plan for
seeding and/or sod. Any remaining topsoil shall
be used for finished grading around structures
and landscaping areas.
DISPOSITION OF UTILITIES:
A. Rules and regulations governing the respective
utilities shall-be observed in executing all work
under this section.
B. If active utilities are encountered but not shown
shown on the drawings, the Engineer shall be
advised before work is continued.
C. Inactive and abandoned utilities encountered in
excavating and rading operations shall be
reported L the Engineer. They shall be removed,
plugged or capped as directed by the Utility
Company or the Engineer.
D. 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.
;ITE GRADING:
A. Grades: Contractor shall perform all cutting,
filling, compacting of fills and rough rading
required to bring entire project area ?o grade as
shown on the drawings.
B. Rough Grading: the tolerance for paved areas
shall not exceed 0.10 feet plus or minus above
the established subgrade. All other areas shall
not exceed 0.10 feel plus or minus the
established grade. All banks and other breaks in
grade shall be rounded at top and bottom.
C. Compaction Requirements:
1. All areas under building pads and paved areas
shall be compacted to 100% standard proctor density.
2. All other fill areas shall be compacted to 90%
standard proctor density.
3. All areas where cut is necessary to meet the
design sub -grade are required to be scarified 12 inches
below sub -grade and meet the above compaction requirements.
8. EARTH WORK BALANCE
A. The Contractor shall confirm all earthwork quantities
prior to start of construction. If an excess or
shortage of earth is encountered, the Contractor
shall confirm with the Owner and Engineer the
requirements for stockpiling, removal or importing
of earth.
B. Minor adjustments to the grades may be required
to earthwork balances when minor excess material
or shortages are encountered. It is recognized
by the parties hereto that the calculations of the
the Engineer in determining earthwork quantities
shall be accomplished in accordance with the
American Society of Civil Engineers Standards for
such calculations. Further, that these calculations
are subject to the interpretations of soil borings
as the physical limits of the various soil types,
the allowable variation in finish grade and compaction
permitted the contractors and that all of these
parameters may cause either an excess or shortage
of actual earthwork materials to complete the project.
If such on actual minor excess or shortage of
materials occurs, the contractor shall contact the
Engineer to determine if adjustment can be made
to correct the imbalance at earth.
9. TESTING
A. Contractor shall hire at Contractors expence an independent
soil testing service to assure soil compaction with scope
of testing to be appproved by Engineer. Copies of test results
shall be submitted to the Engineer.
STREETS AND PAVING
1. SCOPE OF WORK
A. The work required under this section includes all
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:
All streets, parking areas in contract limits
Curbs and gutters.
Sidewalks and concrete slabs, exterior steps.
2. MATERIALS
A. Concrete - Concrete shall be read mixed concrete
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 slum machine place
concrete shall be no less than 1 -1 4 inches nor
more than 3 inches. Standard testttta 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
delivered concrete will not be allowed. Concrete shall
be composed of
1. Portland cement - Conforming to ASTM C -150,
Type IA or Type IIIA.
2. Aggregates: Conforming to ASTM C -33
3. Water - Shall be clear and free from
injurious amounts of oils, acids alkalis,
organic materials or other deleterious
substances.
B. Welded Steel Vire Fabric - Where required for
concrete reinforcement shall conform to ASTM A185.
C. 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
resilient.
D. Bituminous Pavement Materials - All materials
proposed for the construction of bituminous
pavements shall comply with the Indiana Department
of Transportation specifications, per latest
revision.
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 % PASSING
M / "
3/4" 2 80-100
142" 35 -60
25 -50
200 15 -10
3. APPLICATION
A. Grading - Do any necessary grading in addition to
that performed in accordance with Earthwork
Section, to bring subgrades after final
compaction, to the required grades and sections
for site improvement.
B. 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.
C. Compaction of Subgrade - The first 12 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.
D. Compacted Aggregate Subbase - the thickness shown
on the drawings is the minimum thickness of the
fully compacted subbase. Compaction shall be
accomplished by rolling with a smooth wheeled
roller weighing 8 to 10 tons. Cam act to 95%
standard proctor density (ASTM D698)
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 hand tampers.
E. Bituminous Pavement - Hot asphalt concrete
pavement shall be as specified in Section 400 -410
of the Indiana Department of Transportation
Specifications latest revisions. Paving will not
be permitted during unfavorable weather or when
the temperature is not in compliance with section
401.05 of the INDOT Specifications.
F. Utility Structures - Check for correct elevation
of all manhole covers valve boxes and similar
structures located wAin areas to be paved, and
make, or have made, any necessary adjustments in
such structures.
G. 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 - All forms shall be free from warp,
tight enough to prevent leakage and substantial
enough to maintain their shape and position without
ringing or settling, when concrete is placed.
arms shall be clean and smooth and coated with
form release before placement of concrete.
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 degrees F. or less, paragraph 702.10 of
the Indiana Department of Iransportation
Specifications latest revision shall be
followed.
H. Concrete Curb
1. Expansion Joints - Shall be 1/2 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 ojnbed, places.
Finish square comers to 1%c4 radius and
other comers to radii shown.
I. 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. Appply medium
broom finish and scribe optrol joints at 5
foot spacing. Provide 12 expansion joints
where sidewalks intersec , and at a maximum
spacing of 48 feet between expansion joints.
J. Curing Concrete - Except as otherwise specified,
cure all concrete b one of the methods descr�ed
in Section 501.17 aT the Indiana Department of
Transportation Specifications, latest revision.
PER INDOT SPECIFICATION SECTION 215 - "CHEMICAL MODIFICATION OF SOILS ":
215.01 - DESCRIPTION
THIS WORK SHALL CONSIST OF THE MODIFICATION OF SOILS BY UNIFORMLY MIXING DRY
PORTLAND CEMENT, FLY ASH, LIME, OR A COMBINATION OF THE MATERIALS WITH SOIL TO
AID IN ACHIEVING THE WORKABILITY OF SOILS HAVING AN EXCESSIVE MOISTURE CONTENT.
215.02 - MATERIALS
215.03 - TESTING AND MIX DESIGN
215.04 - STORAGE AND HANDLING
215.05 - WEATHER LIMITATIONS
215.06 - PREPARATION OF SOILS
215.07 - SPREADING OF CHEMICAL MODIFIERS
215.08 - MIXING
215.09 - COMPACTION
215.10 - MEASUREMENT
215.11 - BASIS OF PAYMENT
SECTION 913 - "SOIL TREATMENT MATERIALS
913.01 - WATER
913.02 - CALCIUM CHLORIDE
913.03 - SODIUM CHLORIDE
913.04 - LIME
EXTERIOR STEPS/HANDRAILS PER ADAAG 4.9
4.9.2 Treads and Risers. On any given flight of stairs, all steps shall have uniform riser heights
and uniform tread widths. Stair treads shall be no less than 11 in (280 mm) wide, measured
from riser to riser. Open risers are not permitted.
4.9.3 Nosinas. The undersides of nosings shall not be abrupt. The radius of curvature at the
leading edge of the tread shall be no greater than 1/2 in (13 mm). Risers shall be sloped or
the underside of the nosing shall have an angle not less than 60 degrees from the horizontal.
Nosings shall project no more than 1 -1/2 in (38 mm).
4.9.4 Handrails. Stairways shall have handrails at both sides of all stairs. Handrails shall comply
with 4.26 and shall have the following features:
(1) Handrails shall be continuous along both sides of stairs. The inside handrail on switchback or
dogleg stairs shall always be continuous.
(2) If handrails are not continuous, they shall extend at least 12 in (305 mm) beyond the top
riser and at least 12 in (305 mm) plus the width of one tread beyond the bottom riser. At the
top, the extension shall be parallel with the floor or ground surface. At the bottom, the handrail
shall continue to slope for a distance of the width of one tread from the bottom riser; the
remainder of the extension shall be horizontal. Handrail extensions shall comply with 4.4.
(3) The clear space between handrails and wall shall be 1 -1/2 in (38 mm).
(4) Gripping surfaces shall be uninterrupted by newel posts, other construction elements, or
obstructions.
(5) Top of handrail gripping surface shall be mounted between 34 in and 38 in (865. mm and
965 mm) above stair nosings.
(6) Ends of handrails shall be either rounded or retumed smoothly to floor, wall or post.
(7) Handrails shall not rotate within their fittings.
DISTANCE DEFINED BY
D.O.T. REQUIREMENTS
.. _. . '-. �-9 1
I
EDGE OF PAVEMEr
GUTTER OR SIMILAR ST
IN THE PUBUC RIGHT
08 STONE OR APPROVED
EQUIVALENT. BEDDING MATERIAL HAND
TAMPED OR WALKED INTO PLACE TO A
MIN. OF 12" ABOVE TOP OF PIPE.
LEG=
OD OUTSIDE DIAMETER OF PIPE
ID = INSIDE DIAMETER OF PIPE
NOTESe
1. ALL INITIAL BACKFI,rL SHAD.
BE INSTALLED IN 8 TO 12
BALANCED LIFTS.
2. A MINIMUM 9" OF CLEARANCE
SHALL BE PROVIDED ON EACH
SIDE OF THE INSTALLED PIPE.
•E
1 PLASTIC PIPE PVC & HDPE
BEDDING/TRENCH DETAIL
NOT TO SCALE
X-
' TRENCH IF
IIN W OF
. IF GREATER
OF PAVEMENT.
UID WITH
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DATE: 05/15/12
DWN BY: EAG
CHKD. BY: EAG
SCALE: in = 40
DATE: 05 -15 -1,
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PROJECT NUMBER
MSI.039
DRAWING NUMBER
c9mo
SHEET 5 OF 5