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15 DEC 08 TABLE OF CO NTENTS - 1 0810
TABLE OF CONTENTS
B ID PACKAG E A - SITE PREPARATIO N
THE GIVING TREE CHILDCARE CENTER, INC.
CLARKSVILLE, TENN ESSEE
Table of Contents
BIDDING REQ UIREM ENTS
00 11 16 - Invitation to B id
00 21 13 - Instructions to B idders
00 31 32 - Inform ation Availab le to B idders
00 41 13 - B id Form
CO NTRACTING REQ UIREM ENTS
00 52 13 - Agreem ent
00 72 13 - Application of General Conditions
SPECIFICATIONS
Division 1 - G eneral Requirem ents
Section 01 11 00 - Sum m ary of W ork
Section 01 50 00 - Tem porary Facilities
D ivision 2 - Existing Conditions
Section 02 41 16 - Build ing Dem olition
D ivision 3 - Concrete - Refer to Draw ings
D ivision 4 - M asonry - N .I.C .
D ivision 5 - M etals - N .I.C .
D ivision 6 - Carpentry - N .I.C .
D ivision 7 - Therm al and M oisture Protection - N .I.C .
D ivision 8 - Doors, W indows, and G lass - N .I.C .
D ivision 9 - F inishes - N .I.C .
D ivision 10 - Specialties - N .I.C .
D ivision 11 - Equipm ent - N .I.C .
D ivision 12 - Furnishings - N .I.C .
D ivision 13 - Special Construction - N .I.C .
D ivision 14 - E levators - N .I.C .
D ivision 21 - F ire Suppression - N .I.C .
D ivision 22 - P lum bing - Refer to D raw ings.
15 DEC 08 TABLE OF CO NTENTS - 2 0810
D ivision 23 - HVAC - N .I.C .
D ivision 26 - E lectrical - Refer to D raw ings.
D ivision 31 - Earthwork
Section 31 00 00 - Earthwork
END TABLE OF CONTENTS
15 DEC 2008 00 11 16 - INVITATIO N TO BID - 1 0810
INVITATION TO BID
PRO JECT:
BID PACKAG E A - SITE PREPARATIO N
THE GIVING TREE CHILDCARE CENTER, INC.
CLARKSVILLE, TENN ESSEE
Sealed bids are invited for site preparation work at the O wner’s property, 3216 US41-A South in M ontgom ery
County near C larksville, Tennessee. The Project includes dem olition, clearing, earthw ork, retaining walls,
drainage im provem ents and utility work as described in the B id Docum ents.
B ids w ill be received by:
Tom Edwards
EET Holdings
O wner
B ids w ill be received until 4:00 p.m ., local tim e, on Thursday, 15 January 2009 at:
C redit Bureau System s, Inc.
121 W est Dunbar Cave Road
C larksville, Tennessee 37040
At th is tim e bids w ill be publicly opened and read aloud.
Address requests for docum ents and other inquiries to the Architect:
V IOLETTE ARCHITECTURE/INTERIOR DESIGN
103 M arion Street
P . O . Box 100
C larksville, TN 37041
931-552-6878
Bid docum ents m ay be exam ined at the above address and viewed online: www.vioarc.com .
In order to bid, invited general contractors shall be provided (2) copies of b id docum ents. O ther interested
subcontractors m ay purchase single copies of the bid docum ents at the office of the Architect upon the
paym ent of the sum Two Hundred Dollars ($200.00) per set.
B idders shall be licensed as G eneral Contractors for the work classification required under Tennessee Code
Annotated, subsequent am endm ents thereto and the Rules and R egulations of the S tate Board of L icensing
Contractors.
The Owner reserves the right to waive inform alities and to reject any or all bids.
END OF INVITATION TO BID
1 5 D E C 2 0 08 00 21 13 - IN S T R U C T IO N S T O B ID D E R S - 1 0 8 1 0
INSTRUCTIONS TO BIDDERS
T o be cons ide red , B ids sha ll be m ade in acco rdance w ith these Ins tructions to B idde rs .
B ID D O C U M E N T S : The Architect w ill provide invited General contractors two (2) copies of the bid docum ents
free of charge as a prerequisite to bidding. O thers m ay purchase individual sets of docum ents. No separate
sheets w ill be m ade available.
C O N D IT IO N S A F F E C T IN G T H E W O R K : B id d e rs sh a ll ca re fu lly e xa m in e th e D o cu m e n ts a n d th e
construction s ite and take such o the r s teps as m ay b e necessa ry to asce rta in the na tu re o f the w o rk and
ob ta in firs thand know ledge o f ex is ting g ene ra l a nd loca l co nd itions w h ich ca n a ffec t the w o rk o r the cost
the re o f. F a ilu re to ta ke such s teps sha ll n o t re lieve b idde rs from re spons ib ility fo r e s tim a ting p ro pe rly the
d ifficu lty o r cost o f successfu lly pe rfo rm in g th e w o rk . T he fa ilu re to exam ine any fo rm , ins tru m en t o r
docum en t sha ll in no w ay re lieve the b idde r from a ny o b liga tion in re spect o f the b id . C op ies o f s tanda rd
re fe re nces in the D ocum en ts a re ava ilab le a t the A rch itec t's O ffice . T he O w ne r a ssum es no re spons ib ility
fo r any m isunde rs tand ing o r rep resen ta tions conce rn ing cond itions m a d e b y any o f h is agen ts ,
rep resen ta tives o r em p loyees p rio r to the execu tion o f the con tract, un less in c luded in the con tract
docum en ts .
P R E -B ID C O N F E R E N C E : A m anda to ry p re -b id con fe rence w ill b e h e ld a t the C la rksv ille C red it B u reau
S ystem , 121 W est Dunbar Cave Road C la rksv ille , T ennessee a t 4 :00 p .m . T hu rsday, 08 Janua ry 2008 .
P R E P A R A T IO N O F B ID S : B ids sha ll be m ade on th e una lte red B id F o rm p rov ided a t the p re -b id
con fe rence . F ill in each b lank space on th e B id F o rm ; fa ilu re to do so w ill be cause fo r re jec tio n .
LA W S A N D F E D E R A L R E G U LA T IO N S : T he b idde r's a tten tio n is d irec te d to the fa c t tha t a pp licab le
S ta te law s, loca l o rd inances, and the ru les and regu la tions o f au tho ritie s hav ing ju risd ic tion ove r
constructio n o f the p ro jec t sha ll a pp ly to th e con tract th roughou t a nd th ey w ill be deem ed to be inc luded
in th e con tract the sam e as th ough he re in w ritten ou t in fu ll.
B ID S E C U R IT Y : N o b id se cu rity is re q u ire d .
B ID S U B M IT T A L : B ids sha ll be subm itted sea led in the enve lope p rov ided a t th e p re -b id con fe rence .
R E C E IP T O F B ID S : B ids w ill be rece ived and opened a t the tim e and p lace as iden tified in th e In v ita tio n
to B id .
D E L IV E R Y W IT H D R A W A L A N D M O D IF IC A T IO N : O n ce su b m itte d , th e b id m a y b e w ith d ra w n b e fo re th e
schedu led o p e n ing tim e on ly upon re ce ip t o f a re quest s igned by an au tho rized re p re sen ta tive o f the
B idde r. If a b id is w ithd raw n , it m ay n o t be resubm itted . M od ifica tions to the b id m ay be m ade as "add "
o r "deduct" o n ly and m ust be s igned by the p e rson s ign ing th e b id a nd rece ived p rio r to the tim e se t fo r
open ing . A fte r the tim e se t fo r open ing no b id m ay be w ithd raw n o r m od ified fo r a pe riod o f fo rty -five
days.
A W A R D O F C O N T R A C T : T he C on tract w ill be aw a rded based on th e low est e va lua te d B id as
de te rm ined to be in the O w ne r's best in te re st. T he successfu l B idde r sha ll b e p re pa re d to e xecu te the
C on tract w ith in te n (10 ) days a fte r p resen ta tio n .
A D D IT IO N A L D O C U M E N T S : T he O w ne r sha ll p rov ide the G ene ra l C on tra cto r w ith a to ta l o f s ix (6 ) se ts
w ith ou t cha rge fo r use in constructio n o f the p ro jec t. A dd itio na l se ts , if requeste d by th e C on tracto r, sha ll
be pu rchased from the A rch itec t fo r the sum o f tw o hund re d do lla rs ($ 200 .00 ) p e r se t.
END OF INSTRUCTIONS TO BIDDERS
15 DEC 08 00 3132 - INFO RM ATIO N AVAILABLE TO BIDDERS - 1 0810
INFORMATION AVAILABLE TO BIDDERS
BO UNDARY, TO PO G RAPHIC & UTILITY SURVEY
A survey has been perform ed at the Project site and a copy is on file in the Architect's office.
This survey was obtained solely for design purposes and is not a part of the Contract Docum ents. The use
and interpretation of this inform ation for any other purpose shall be entirely the responsibility of the using party.
The Owner is not responsible for variations in the site conditions. B idders shall m ake observations at the site
in person to determ ine the nature and location of existing features to be encountered.
SUBSURFACE INVESTIG ATIO N
A sub-surface investigation has been perform ed at the Project site and the report of the find ings o f this
investigation is on file in the Architect's office.
This sub-surface report was obtained solely for design purposes and is not a part of the Contract Docum ents.
The use and interpretation of th is inform ation for any other purpose shall be entire ly the responsibility of the
using party.
The O wner is not responsible for variations in the sub-surface conditions. Bidders shall decide for them selves
the character of the m ateria l to be encountered.
END OF INFORMATION AVAILABLE TO BIDDERS
15 DEC 08 00 41 13 - BID FO RM - 1 0810
BID FORM
DATE:
TO :
Tom Edwards
EET Holdings
O wner
PRO JECT:
B ID PACKAG E A - SITE PREPARATIO N
THE GIVING TREE CHILDCARE CENTER, INC.
CLARKSVILLE, TENN ESSEE
The undersigned as B idder acknowledges by his signature that he has visited and exam ined the site of the
proposed construction and has received and exam ined docum ents for the Construction of subject project,
including the Draw ings and other docum ents and has included their provisions in his B id. The Bidder further
acknowledges that he has received the follow ing Addenda:
Addendum No. Dated
Addendum No. Dated
Addendum No. Dated
In subm itting this B id(s), the B idder agrees:
A. To hold open his B id for 35 days from the date shown above.
B. To enter into and execute a Contract, if awarded, on the basis of th is bid.
C . To accom plish the W ork in accordance w ith these Contract Docum ents.
D . To com plete the W ork on or before 60 days after execution of the Agreem ent.
E . To guarantee the work for a period of one (1) year from the date of authorization of final settlem ent.
UNIT PRICES
1. Excavation of undisturbed earth $ ____________________ / c.y.
2. Com pacted backfill using off-site borrow $ ____________________ / c.y.
3. Com pacted backfill using borrow from Owner’s off-site p it $ ____________________ / c.y.
4. R ip-rap, in-place $ ____________________ / c.y.
5. 2" W ater Line Below Grade $_____________________/ l.f.
6. 4" W ater Line Below Grade $_____________________/ l.f.
7. 4" Sanitary Sewer Sch 40 PVC $_____________________/ l.f.
15 DEC 08 00 41 13 - BID FO RM - 2 0810
O ur stipulated sum bid includes the follow ing am ounts which are listed here for the Owner's accounting
purposes:
DESCRIPTION OF W ORK IN PLACE AM OUNT
Dem olition $_________________
Earthwork $_________________
R ip-rap $_________________
Retaining W all $_________________
W ater line $_________________
Sanitary Pum p Station $_________________
The B idder agrees to construct the W ork of th is Project for the lum p sum of (use whole dollars and show
am ount in both words and figures):
____________________________________________________________________ Dollars
($__________________________ )
The B idder acknowledges by his signature that he agrees to requirem ents contained in the Invitation to B id and
the Instructions to B idders.
Nam e of Firm
S igned by T itle
B idder's Address
B idder's Telephone Num ber
Note: If a Corporation, B id m ust be signed by person authorized to bind it to the Contract.
END OF BID FORM
15 DEC 08 00 52 13 - AG REEM ENT - 1 0810
AGREEMENT
The O wner-Contractor Agreem ent shall be the standard printed A.I.A . Docum ent A-101, 2007 edition, issued
by the Am erican Institute of Architects.
END OF AGREEMENT
15 DEC 08 00 72 13 - APPLICATIO N OF G ENERAL CO NDITIO NS - 1 0810
APPLICATION OF GENERAL CONDITIONS
The standard printed A.I.A . Docum ents A-201, 2007 edition, issued by the Am erican Institute of Architects and
entitled "The G eneral Conditions of the Contract for C onstruction" and any other Supplem ental General
Conditions form a part of th is contract by reference and shall apply to the w ork as a whole and to each and
every branch or subdivision of the work w ith the sam e force as if w ritten in fu ll at the beginning of each of the
several sections.
Specific and im plied m odifications hereinafter are supplem ental and additional to the A.I.A . General Conditions
and nothing therein contained shall abrogate any provisions, of the aforesaid G eneral Conditions, unless
specifically so noted, and if any paragraph or article of the aforesaid G eneral Conditions is am ended thereby,
the provisions of such paragraph or article which are not specifically am ended, voided or superceded shall
rem ain in effect.
END OF APPLICATION OF GENERAL CONDITIONS
15 DEC 2008 01 11 00 - SUM M ARY OF W O RK - 1 0810
SECTION 01 11 00 - SUMMARY OF WORK
PART 1 - GENERAL
PRO JECT DESCRIPTIO N
The project consists of tow new new one story classroom additions, site im provem ents, and other work as
indicated on the Docum ents to be constructed at Byrns L. Darden School in C larksville, M ontgom ery County,
Tennessee. Structural system s consist of re inforced concrete foundations and floor slabs on grade, structural
steel fram ing and roof decking. W alls are concrete un it m asonry, building insulation and face brick.
Therm oplastic m em brane roofing over rig id insulation w ith m etal coping, downspouts and accessories. Fram es
are hollow m etal, doors are solid core wood, hollow m etal and alum inum storefront and entrance assem blies
w ith finish hardw are. Interiors include m etal stud fram ing, gypsum wallboard, acoustical ceiling system s, vinyl
flooring, ceram ic tile, painting and cabinetry. Specialties include toilet partitions, signage and accessories.
M echanical and electrical system s include plum bing, sprinkler system , HVAC, fire a larm and com m unications,
power and lighting system s.
Specifically excluded from the Project are item s identified as "Not In Contract" or "N .I.C .".
CO NTRACTOR USE O F PREM ISES
G eneral:
L im it use of the prem ises to construction activities in areas where construction is indicated.
Confine operations to areas w ithin the im m ediate areas of construction. Portions of the site beyond
areas in which construction operations are indicated are not to be disturbed.
Schedule deliveries to m inim ize space and tim e requirem ents for storage of m ateria ls and equipm ent
on site.
No work is to be perform ed on adjoining properties.
M ANDATORY SEQUENCING OF W ORK
G eneral:
Erosion control m easures shall be in p lace prior to com m encing dem olition and earthw ork operations.
Construction entrance shall be in p lace prior to com m encing dem oltion and earthw ork operations.
Replacem ent water m ain shall be operational before rem oval of existing water m ain.
PART 2 - PRODUCTS - Not applicable.
PART 3 - EXECUTION - Not applicable.
END OF SECTION 01 1 00
15 DEC 2008 01 50 00 - TEM PO RARY FACILITIES- 1 0810
SECTION 01 50 00 - TEMPORARY FACILITIES
PART 1 - GENERAL
SUM M ARY
This Section specifies requirem ents for tem porary services and facilities, including utilities, construction and
support facilities, security and protection.
Tem porary utilities required include but are not lim ited to:
W ater service and distribution.
Tem porary construction and support facilities required include but are not lim ited to:
Sanitary facilities, including drinking water.
Dew atering facilities and drains.
Tem porary Project identification signs and bulletin boards.
W aste disposal services.
Construction aids and m iscellaneous services and facilities.
Security and protection facilities required include but are not lim ited to:
Tem porary construction fencing.
Barricades, warning signs, lights.
Environm ental protection, erosion controls
QUALITY ASSURANCE
Regulations: Com ply w ith industry standards and applicable law s and regulations if authorities having
jurisdiction, including but not lim ited to:
Building Code requirem ents.
Health and safety regulations.
U tility com pany regulations.
Police, F ire Departm ent and Rescue Squad rules.
Environm ental protection regulations.
PROJECT CONDITIONS
G eneral: Provide tem porary water in com pliance w ith accepted safe practices and codes.
Conditions of Use: Keep tem porary services and facilities clean and neat in appearance. O perate in a safe
and efficient m anner. Do not overload facilities, or perm it them to interfere w ith progress. D o no t allow
hazardous dangerous or unsanitary conditions, or public nuisances to develop or persist on the site.
PART 2 - PRODUCTS
M ATERIALS - Not Applicable.
EQUIPM ENT
G eneral: Provide equipm ent suitable for use intended.
Tem porary Toilet Units: Provide self-conta ined single-occupant toilet units of the chem ical type, properly
vented and fully enclosed w ith a glass fiber reinforced polyester shell or sim ilar nonabsorbent m aterial.
F irst A id Supplies: Com ply w ith governing regulations.
15 DEC 2008 01 50 00 - TEM PO RARY FACILITIES- 2 0810
PART 3 - EXECUTION
TEM PO RARY UTILITY INSTALLATIO N
W ater Service: Install tem porary water distribution hoses of sizes adequate for construction needs.
TEM PO RARY CO NSTRUCTION AND SUPPO RT FACILITIES INSTALLATION
M aintain tem porary construction and support facilities until near Substantial Com pletion. Rem ove prior to
Substantia l Com pletion. Personnel rem aining after Substantia l C om pletion w ill be perm itted to use perm anent
facilities, under condition acceptable to the Owner.
Dewatering Facilities and Drains: M aintain the site, excavations and construction free of water.
Tem porary Enclosures: Provide tem porary enclosure for protection of construction in progress and com pleted,
from exposure, fou l weather, other construction operations and sim ilar activities.
Project Identification and Tem porary S igns: Prepare project identification sign of the size indicated. Support
on posts or fram ing of preservative treated wood. Do not perm it installation of unauthorized signs. Refer to
specim en sign draw ing follow ing this section.
SECURITY AND PRO TECTION FACILITIES INSTALLATION
Barricades, W arning Signs and L ights: Com ply w ith standards and code requirem ents for erection of
structurally adequate barricades. Paint w ith appropriate colors, graphics and warning signs to inform personnel
and the public of the hazard being protected against. W here appropriate and needed provide lighting, including
flashing red or am ber lights.
O PERATIO N, TERM INATIO N AND REM O VAL
Supervision: Enforce strict discipline in use of tem porary facilities. Lim it availability of tem porary facilities to
essentia l and intended uses to m inim ize waste and abuse.
M aintenance: M aintain facilities in good operating condition until rem oval. P rotect from dam age by freezing
tem peratures and sim ilar elem ents.
Protection: Prevent water filled piping from freezing. M aintain m arkers for underground lines. Protect
from dam age during excavation operations.
Term ination and Rem oval: Unless the Architect requests that it be m aintained longer, rem ove each tem porary
facility when the need has ended, or no later than Substantial Com pletion.
END OF SECTION 01 50 00
15 DEC 08 02 41 16 BUILDING DEM O LITIO N - 1 0810
SECTION 02 41 16 - BUILDING DEMOLITION
PART 1 - GENERAL
SUM M ARY
This Section includes, but is not lim ited to, the fo llow ing:
Dem olition of existing structures and im provem ents above and below grade
Extent of dem olition work is ind icated on draw ings.
JOB CONDITIONS
Condition of Structures: Owner assum es no responsibility for actua l condition of item s or structures to be
dem olished.
Conditions existing at tim e of inspection for b idding purpose w ill be m aintained by Owner in so far as
practicable. How ever, variations w ithin structures m ay occur prior to start of dem olition work.
Protections: Provide tem porary barricades and other form s of protection as required to protect general public
from injury due to dem olition work.
Dam ages: Prom ptly repair dam ages caused to adjacent facilities by dem olition work at no cost to Owner.
Traffic: Conduct selective dem olition operations and debris rem oval in a m anner to ensure m inim um
interference w ith roads, streets, shoulders, and other adjacent occupied or used facilities.
Do not close, b lock or o therw ise obstruct streets, walks or other occupied or used facilities w ithout
written perm ission from authorities having jurisdiction. Provide alternate routes round closed or
obstructed traffic ways if required by governing regulations.
Explosives: Use of explosives w ill not be perm itted.
U tility Services: M aintain existing utilities indicated to rem ain, keep in service, and protect against dam age
during dem olition operations.
Do not interrupt existing utilities serving occupied or used facilities, except w hen authorized in writing
by authorities having jurisdiction. Provide tem porary services during interruptions to existing utilities,
as acceptable to governing authorities.
PART 2 - PRODUCTS - Not applicable.
PART 3 - EXECUTION
INSPECTIO N
Prior to com m encem ent of dem olition work, inspect areas in which work w ill be perform ed.
PREPARATIO N
Locate, identify, stub off and disconnect utility services that are not indicated to rem ain.
Provide by-pass connections as necessary to m aintain continuity of service to occupied areas of
build ing. Provide m inim um of 72 hours advance notice to O wner if shut-down of service is necessary
during change-over.
DEM O LITIO N
15 DEC 08 02 41 16 BUILDING DEM O LITIO N - 2 0810
Building Dem olition: Dem olish build ing com pletely and rem ove from site. Use such m ethods as required to
com plete work ind icated on Draw ings in accordance w ith dem olition schedule and governing regulations.
Dem olish concrete and m asonry in sm all sections.
Break up and rem ove concrete slabs-on-grade.
Below Grade Construction:
Dem olish and rem ove below-grade construction and concrete slabs-on-grade.
Com pletely fill below-grade areas and voids resulting from dem olition w ork as specified in Earthwork
Section.
D ISPO SAL OF DEM O LISHED M ATERIALS
Rem ove debris, rubbish and other m aterials resulting from dem olition operations from building site. Transport
and legally dispose of m ateria ls off site.
If hazardous m ateria ls are encountered during dem olition operations, com ply w ith applicable
regulations, laws, and ordinances concerning rem oval, handling and protection against exposure or
environm ental pollution.
Burning of rem oved m ateria ls is not perm itted on project site.
END OF SECTION 02 41 16
15 DEC 08 SECTION 31 00 00 - EARTHW ORK - 1 0810
SECTION 31 00 00 - EARTHWORK
PART 1 - GENERAL
DESCRIPTION OF W ORK
Extent of earthwork is indicated on Drawings.
Preparation of subgrade for building foundations, slabs, walks, pavements, as well as riprap & retaining walls
are included as part of this work.
Definition: "Excavation" is Unclassified, and includes excavation as required for proper bearing conditions
regardless of character of materials and obstructions encountered. Rock encountered shall be removed at
Contractor's expense.
QUALITY ASSURANCE
Codes and Standards: Perform excavation work in compliance with applicable requirements of governing
authorities having jurisdiction.
Testing and Inspection Service: The Contractor shall retain a firm acceptable to the Owner, Architect &
Engineer. The testing laboratory shall perform soil testing and inspection service for quality control testing
during earthwork operations. Submit name of Testing Laboratory to Architect/Engineer for approval prior to
using on job.
SUBMITTALS
Test Reports: Submit the following reports directly to Architect/Engineer from the testing laboratory, with copy
to Contractor:
Test reports on borrow material.
Field density test reports.
One optimum moisture-maximum density curve for each type of soil encountered.
Report of actual unconfined compressive strength and/or results of bearing tests of each strata
tested.
Report of observation of compaction procedure for soil fill and sub-base material
JOB CONDITIONS
Site Information: Data on subsurface conditions is available at the offices of the Architect/Engineer. A soil
investigation report has been prepared by Earth Science Engineering, LLC, Clarksville, Tennessee. It is
expressly understood that the Owner will not be responsible for conclusions and interpretations drawn there
from by the Contractor and that information is made available only for the convenience of the Contractor.
Should the Contractor so desire, additional test borings and other exploratory operations may be made by
Contractor at no expense to Owner.
Existing Utilities: Locate existing underground utilities in areas of work. If utilities are to remain in place,
provide adequate means of support and protection during earthwork operations.
Should uncharted, or incorrectly charted, piping or other utilities be encountered during excavation, consult
Utility or Owner immediately for directions. Cooperate with Owner and utility companies in keeping respective
services and facilities in operation. Repair damaged utilities to satisfaction of Utility and Owner.
15 DEC 08 SECTION 31 00 00 - EARTHW ORK - 2 0810
Do not interrupt existing utilities serving facilities occupied and used by Owner or others, during occupied
hours, except with prior written notice by Architect and then only after acceptable temporary utility services
have been provided.
Provide minimum of 48-hour notice to Architect and receive written notice to proceed before interrupting any
utility.
Protection of Persons and Property: Barricade open excavations occurring as part of this work and post with
warning lights.
Operate warning lights as recommended by authorities having jurisdiction.
Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement,
lateral movement, undermining, washout and other hazards created by earthwork operations.
PART 2 - PRODUCTS
SOIL AND ROCK MATERIALS
Definitions:
Satisfactory soil materials are those complying with Earth Science Engineering’s subsurface investigation
obtained by the Owner and approved by the Geotechnical Engineer retained by the Contractor.
Subbase Material: Naturally or artificially graded mixture of natural or crushed gravel, crushed stone, crushed
slag, and natural or crushed sand.
Drainage Fill: W ashed, evenly graded mixture of crushed stone conforming to ASTM D448, size No. 57.
Soil Backfill and Fill Materials: Approved soil having a plasticity index (PI) of 28 or less and more than 15. Soil
classified as ML or CL are not acceptable. Soil shall be free or organic matter.
RIP RAP
Machined Riprap shall vary in size from 2 inches to 1’-3” with no more than 20 percent by weight being less
than 4 inches. The thickness of the stone layer shall be 1’-6” with a tolerance of 3 inches.
Geotextile for Use as Riprap Bedding Material: Geotextile shall meet the requirements of AASHTO M 288
for Separation Geotextile Properties Table 3 for Apparent Opening Size and Ultraviolet Stability and
Geotextile Strength Property Requirements, Table 1, Class 2 for grab strength and puncture strength.
PRECAST CONCRETE HEADW ALLS
Concrete: Provide concrete for precast machine-made units meeting requirements of ASTM C 76 regarding
reinforced concrete, cement, aggregate, mixture and concrete test. Minimum 28-day compressive strength
shall be 4000 psi.
Reinforcing Steel: Place reinforcing steel to conform to details shown on Drawings. Provide positive means for
holding steel cages in place throughout production of concrete units.
RETAINING W ALL
Pre-Cast Retaining W all: Provide units based on standard products manufactured by Redi-Rock International
L.L.C or Equal. Provide specials units, corner & end units etc. As required for complete installation as shown
on the Drawings.
15 DEC 08 SECTION 31 00 00 - EARTHW ORK - 3 0810
PART 3 - EXECUTION
EXCAVATION
Excavation is Unclassified, and includes excavation to subgrade elevations indicated, or excavation as
required for proper bearing conditions regardless of character of materials and obstructions encountered.
Rock encountered shall be removed at Contractor's expense to 8 inches minimum below bottom of spread
footings. Contractor shall backfill with an 8 inches minimum thickness sand cushion between top of rock and
bottom of footings.
Unauthorized excavation consists of removal of materials beyond indicated subgrade elevations or dimensions
without specific direction of Architect. Unauthorized excavation, as well as remedial work directed by Architect
shall be at Contractor's expense.
Elsewhere, backfill and compact unauthorized excavations as specified for authorized excavations of same
classification, unless otherwise directed by Architect.
Proofroll the building, parking and roadway areas with loaded tandem axle dump truck under the observation
of the Geotechnical Engineer retained by the Contractor after stripping topsoil and excavating to the proposed
subgrade level.
If unsuitable bearing materials are encountered at required subgrade elevations, carry excavations deeper and
replace excavated material as directed by the Geotechnical Engineer retained by the Contractor. Removal of
authorized unsuitable material and its replacement will be paid on basis of contract conditions relative to
changes in work.
Stability of Excavations: Slope sides of excavations to comply with local codes and ordinances having
jurisdiction. Shore and brace where sloping is not possible because of space restrictions or stability of material
excavated.
Maintain sides and slopes of excavations in safe condition until completion of backfilling.
Shoring and Bracing: Provide materials for shoring and bracing, if necessary to prevent cave-ins, such as
sheet piling, uprights, stringers and cross-braces, in good serviceable condition.
Establish requirements for trench shoring and bracing to comply with local codes and authorities having
jurisdiction.
Maintain shoring and bracing in excavations regardless of time period excavations will be open.
Dewatering: Prevent surface water and subsurface or ground water from flowing into excavations and from
flooding project site and surrounding area.
Do not allow water to accumulate in excavations. Remove water to prevent softening of foundation bottoms,
undercutting footings, and soil changes detrimental to stability of subgrades and foundations. Provide and
maintain pumps, well points, sumps, suction and discharge lines, and other dewatering system components
necessary to convey water away from excavations.
Establish and maintain temporary drainage ditches and other diversions outside excavation limits to convey
rain water and water removed from excavations to public storm sewer. Do not use trench excavations as
temporary drainage ditches.
Material Storage: Stockpile satisfactory excavated materials where directed, until required for backfill or fill.
Place, grade and shape stockpiles for proper drainage.
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Locate and retain soil materials away from edge of excavations.
Dispose of excess soil material and waste materials as herein specified.
Excavation for Structures: Conform to elevations and dimensions shown within a tolerance of plus or minus
0.10', and extending a sufficient distance from footings and foundations to permit placing and removal of
concrete formwork, installation of services, other construction, and for inspection.
Excavation for Pavements: Cut surface under pavements to comply with cross-sections, elevations and grades
as shown.
Excavation for Trenches: Dig trenches to the uniform width required for particular item to be installed,
sufficiently wide to provide ample working room. Provide 6" to 9" clearance on both sides of pipe or conduit.
Excavate trenches to depth indicated or required. Carry depth of trenches for piping to establish indicated flow
lines and invert elevations. Beyond building perimeter, keep bottoms of trenches sufficiently below finish grade
to avoid freeze-ups. W here rock is encountered, carry excavation 6" below required elevation and backfill with
a 6" layer of sand, crushed stone, or gravel prior to installation of pipe.
For pipes or conduit 6" or larger in nominal size, tanks and other mechanical/electrical work indicated, or, if not
otherwise indicated, excavate to 6" below bottom of work to be supported.
Except as otherwise indicated, excavate for exterior water-bearing piping (water, steam, condensate, drainage)
so top of piping is not less than 2'-0" below finished grade.
Grade bottoms of trenches as indicated, notching under pipe bells to provide solid bearing for entire body of
pipe.
Do not backfill trenches until tests and inspections have been made and backfilling authorized by Architect.
Use care in backfilling to avoid damage or displacement of pipe systems. For piping or conduit less than 2'-6"
below surface of roadways, provide 4" thick concrete base slab support. After installation and testing of
piping or conduit, provide minimum 4" thick encasement (sides and top) of concrete prior to backfilling or
placement of roadway subbase.
Cold W eather Protection: Protect excavation bottoms against freezing when atmospheric temperature is less
than 35 degrees F. (1 degree C).
COMPACTION
General: Control soil compaction during construction providing minimum percentage of density specified for
each area classification indicated below.
Percentage of Maximum Density Requirements: Compact soil to not less than the following percentages of
maximum density, unless noted otherwise by Geotechnical Engineer retained by the Contractor.
Buildings: Compact each layer of soil backfill or soil fill material at 95% Standard Proctor (ASTM
D698). Maintain moisture content within 2% of optimum.
Roadways, Parking Lots, and Sidewalks: Compact top 12" of subgrade and each layer of soil backfill
or soil fill material at 95% Standard Proctor (ASTM D698). Maintain moisture content within 2% of
optimum.
Landscaping Areas: Compact each layer of backfill or fill material at 90% Standard Proctor (ASTM
D698). Maintain moisture content within 3% of optimum.
Moisture Control: W here subgrade or layer of soil material must be moisture conditioned before compaction,
uniformly apply water to surface of subgrade, or layer of soil material, to prevent free water appearing on
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surface during or subsequent to compaction operations.
Remove and replace, or scarify and air dry, soil material that is too wet to permit compaction to specified
density.
Soil material that has been removed because it is too wet to permit compaction may be stockpiled or spread
and allowed to dry. Assist drying by discing, harrowing or pulverizing until moisture content is reduced to a
satisfactory value.
BACKFILL AND FILL
General: Place acceptable soil material in layers to required subgrade elevations, for each area classification
listed below.
In excavations, use satisfactory excavated or borrow soil material.
Under grassed areas, use satisfactory excavated or borrow soil material.
Under walks and pavements, use subbase material.
Under building foundations, use satisfactory soil materials.
Under piping and conduit, use subbase material where subbase is indicated under piping or conduit;
shape to fit bottom 90 of cylinder.o
Backfill excavations as promptly as work permits, but not until completion of the following:
Acceptance of construction below finish grade including, where applicable, dampproofing,
waterproofing, and perimeter insulation.
Inspection, testing, approval, and recording locations of underground utilities. Removal of concrete
formwork.
Removal of shoring and bracing, and backfilling of voids with satisfactory materials. Cut off temporary
sheet piling driven below bottom of structures and remove in manner to prevent settlement of the
structure or utilities, or leave in place if required.
Removal of trash and debris.
W hen existing ground surface has a density less than that specified under "Compaction" for particular area
classification, break up ground surface, pulverize, moisture-condition to optimum moisture content, and
compact to required depth and percentage of maximum density.
Placement and Compaction - Soil: Place backfill and fill materials in layers not more than 9" in loose depth for
material compacted by heavy compaction equipment, and not more than 4" in loose depth for material
compacted by hand-operated tampers.
Before compaction, moisten or aerate each layer as necessary to provide optimum moisture content.
Compact each layer to required percentage of maximum dry density or relative dry density for each area
classification. Do not place backfill or fill material on surfaces that are muddy, frozen, or contain frost or ice.
Place backfill and fill materials evenly adjacent to structures, piping or conduit to required elevations. Take care
to prevent wedging action of backfill against structures or displacement of piping or conduit by carrying
material uniformly around structure, piping or conduit to approximately same elevation in each lift.
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GRADING
General: Uniformly grade areas within limits of grading under this section, including adjacent transition areas.
Smooth finished surface within specified tolerances, compact with uniform levels or slopes between points
where elevations are indicated, or between such points and existing grades.
Grading Outside Building Lines: Grade areas within 10' of future building to slope and drain away from building
at 5%.
Finish surfaces free from irregular surface changes, and as follows:
Lawn or Unpaved Areas: Finish areas to receive topsoil to within not more than 0.10' above or below
required subgrade elevations.
W alks: Shape surface of areas under future walks to line, grade and cross-section, with finish surface
not more than 0.10' above or below required subgrade elevation.
Pavements: Shape surface of areas under pavement to line, grade and cross-section, with finish
surface not more than 1/2" above or below required subgrade elevation.
Grading Surface of Fill Under Building Slabs: Grade smooth and even, free of voids, compacted as specified,
and to required elevation. Provide final grades within a tolerance of 1/2" when tested with a 10' straightedge.
Compaction: After grading, compact subgrade surfaces to the depth and indicated percentage of maximum or
relative density for each area classification.
PAVEMENT SUBBASE COURSE
General: Subbase course consists of placing subbase material, in layers of specified thickness, over subgrade
surface to support a pavement base course.
Grade Control: During construction, maintain lines and grades including crown and cross-slope of subbase
course.
Placing: Place subbase course material on prepared subgrade in layers of uniform thickness, conforming to
indicated cross- section and thickness. Maintain optimum moisture content for compacting subbase material
during placement operations.
W hen a compacted subbase course is shown to be 6" thick or less, place material in a single layer. W hen
shown to be more than 6" thick, place material in equal layers, except no single layer more than 6" or less
than 3" in thickness when compacted.
RIP RAP
Riprap shall be placed to its full course thickness in one operation and in a manner to avoid displacing
underlying material. Riprap stone shall not be dropped onto fabric from a height greater than 1 foot.
Smaller-sized material shall not be dropped onto fabric from a height greater than 3 feet. Larger stones
shall be reasonably well distributed. Finished riprap shall be free from objectionable pockets of small
stones and clusters of larger stones. Hand placing may be required to the extent necessary to secure the
results specified and form uniform slopes.
FIELD QUALITY CONTROL
Quality Control Testing During Construction: Allow testing service to inspect and approve subgrades and fill
layers before further construction work is performed.
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Perform field density tests in accordance with ASTM D 2922 (nuclear density) and ASTM D 3017 (nuclear
moisture), as applicable.
Footing Subgrade: For each strata of fill on which footings will be placed, conduct at least one test to verify
required design bearing capacities. Subsequent verification and approval of each footing subgrade may be
based on a visual comparison of each subgrade with related tested strata, when acceptable to Architect.
Paved Areas and Building Slab Subgrade: Make at least one field density test of subgrade for every 2500 sq.
ft. of paved area or building slab, but in no case less than 3 tests. In each compacted fill layer, make one field
density test for every 2500 sq. ft. of overlaying building slab or paved area, but in no case less than 3 tests.
Foundation W all Backfill: Take at least 2 field density tests, at locations and elevations as directed.
A Geotechnical Engineer retained by the Contractor and approved by the Architect will be required to
observe all cut and fill operations to insure that the plans and specifications are carried out during
construction.
MAINTENANCE
Protection of Graded Areas: Protect newly graded areas from traffic and erosion. Keep free of trash and
debris.
Repair and re-establish grades in settled, eroded, and rutted areas to specified tolerances.
Reconditioning Compacted Areas: W here completed compacted areas are disturbed by subsequent
construction operations or adverse weather, scarify surface, re-shape, and compact to required density prior to
further construction.
Settling: W here settling is measurable or observable at excavated areas during general project warranty
period, remove surface (pavement, lawn or other finish), add backfill material, compact, and replace surface
treatment. Restore appearance, quality, and condition of surface or finish to match adjacent work, and
eliminate evidence of restoration to greatest extent possible.
DISPOSAL OF EXCESS AND W ASTE MATERIALS
Transport trash and debris off site and dispose of in a legal manner.
Excess material, waste material including unacceptable excavated material may be wasted on site.
END OF SECTION 31 00 00
