*••••%‘41 • •
ussow+6.04•••••••
LICINIZER'S STATEMENT
hereby certify that these Specifications fir the construction of the tRUGATION
IGUI011111W illa
were pr*paired under my direst swervisien for tho owners thereof.
, " •
c.
*al Re9isteved Engineer SOWribed and sown to before me this day of ....14basidaufildiser
ly Cesosission expires
>17
4
-4 4fOMER'S STATEMENT
We, WaIummoyvqIi Canv
owners# whosepostoffice eddraSe
IS
Ciateurrgioradedo horeby accept and approve these Spesifisations for the construction of Irrigation the WILBMANIArvolar, _ of 40%114 V Le
OW AT
c• ttyr-bYs 1*.Odebof kcretaryApproved on the day of
President
L/4,--s-AlAar,emic
id/dte 47" r State ingineirt
CONTEND;
General information • • • • • • • • is • • • Discharge Capacity ef Outlet Conduit. • • Dieehar2s Capacity of Emergency Spillway. . Estimated Coat • • • • . . • • • • • • • • Oeneral dpecifications. • • • • • • • • Gage Rad 41 • • 0 * • • Supervisioo • • • • • • • • • • • • • • • • Changes in Specifications • • • . . • . • . . . . 4Ma1ity of Sark • • • • • • • • • • • • Ear* Work. • • • • • ••••••••• Intent of Plans and Specifications. . •
Special Specification L-2I7 • • • • • • • • • • • • • • Spacial Specification 1.-218t Coffer duo Unmatering and
Protection of 'larks Against Floods. Special Specification L-229s Pip' Trench Fxcavation
Extanding Sallow Principal Spillway And Sack! ill.
• • • • • • • 4 • • • * • • • Page • • • • . . • . • . 1 • . . • . • • • . . 2 • . • . . 3 • . . . . • . . . . 4 • . . • . 5 • . • . . • . . . • 6 • . • • 6 . • . . 6 • • . •• • . • • 0 6 • • . . 6 • , . • • 0 I I * • 6 • • • 7 • • • • • • • III • • • • • • •
Spools' Specification L..230, Construction of cut Off ID Special Specification L-2321
Special Specification 1.-234, Special Specification id-244s
Sass of Dam . . . .• •• • .
Strsctural F4scavation 0 •• • •
Common Excavation • • Compacted Earth Pill
Class B*2 a • • • • * •0 • •
Special Specification 10.246s Backfilling Around 3tructures Special Specification L-260s Concrete. . . • . • • • • • • Special Specification L-264s Steal Reinforcement . •
Special Specification L-3270 Principal Spillway . : • • IsIded Steel Pip. (*aided Joints. • • ipecial Specification L-3001 :!:40,11arfah !Fey . • • • •
Additional Special Specificati '44 04i
Jr
•
• •
• 4 •a.• • : 9 . • 22 . • 26 „ • • .C7 f 7 1 • - If*/
MEM comma
the Ultima lrrigetben Reservoir Dem is located ia the .at half of Section 20 Iimmelid, 36 fieushl ROWS 1) West of the Sixth Principal Meridian, approximately
3
atlas last cg cortas,
Coloreds.The reservoir le hosted as an umasmed tribmtary te Malmo Creek. The reservoir will be filled by water diverted from the Delores liver through existing canals of the Meateems Valley Irrigation Company.
The approximate eleWstifea of the dam is 6,100 feet above an sea level. The draioage sweet. 3.42 bowers miles and is 3.6 miles loag, and approximately 1.5 miles vide at its videos peiat. Slopes vary from two to five perceat with an average of about three portent.
Soils ia the drainage area ere predesimemtly silty clays, with mostly irrigated pasture sad amall maewaSe Si Native rouge La fair condition. The drainage area tree sostamsd $ Soil sewer sample* member of 73 for runoff computations, using Sell Csilieelevetia* Service hydrology procedures.
The spillvey has been derived for a medium hasard (Clam' ((b)) freeboard hydrograph. The expected runoff is 3000 ses. The moximms flow through the Opillwei is 440 eel. emmeidering spillway storage above the high water line of the reservoir.
USSION coismerry or ovrizr
CCUOVITemmisit OONSiets at approximately 131.5 lineal
feet of 30" 0.0. W16"
thick ap14041 steel pipe, asphalt seated.
flowatien of the imwert of the collet conduit is
66.50 at the tnlot end.
Pew meter surfste elevations up to 74.0 the
vivacity of the outlet conduit
determined un the basis of inlet tomtrel. Per eater surface alevations in
the reservoir shoe* this point. 0141 ewtlet eenduit
diseharge was cepputed
free the fermulees
h st kw hb be gs AV
1.h Ss tam jps 104 vortieel distamie between the meter surface
in the 1
roams* 100 top ofiAilla *Met asedWit at the discharge *ed.
water Surface Elevation In Reservoir berth in Discharge in Pest c.f.s. 66.5 0 0 67.0 0.5 2.30 68.0 1•S 7.10 69.0 2.5 20.75 70.0 3.5 36.50 71.0 4.5 44.50 72.0 5.5 50.00 73,0 6.5 55.50 74.0 7.5 61.30 75.0 8.5 66.47 76.0 9.5 69.31 77.0 10.5 72.01 78.0 11.5 74.62 711.0 12.5 77.17 80.0 13.5 79.57 81.0 14.5 81.93 82.0 15.5 84.29 83.0 16.5 86.50 84.0 17.5 88.71 66.0 11.5
90.86
-2-DISCHARGE CAPACITY OF EMERGENCY SPILLWAY
The emergency *pillory consists of a $OP side excavated earth spillway with 2 to 1 side elope*, legated a:mod the north end of the daa. The level section of the spillway is 170 fast with a flalvd outlet. The crest alowetlen is $5.0. The spillway capacity he been somputed on the basis at
back-water cur," cenputatiows
LS Elevation 85.00 46.50 46.00 86.50 87.00 87.80 48.00 88.10 89.00 $9.50 90.00 22. di 42 a. siol !ii + 4.0 Ifl 29 2g
EMIROENCY SPILLWAY CAPACITY TAKE
PO Q 0.0 0 0.5 16 1.0 60 1.5 2.0 MO 3.0 620 3.5 700 4.0 920 4.3 11110 5.0 14110 •
ESTIMATED COST
Item
No. Item
Approximate Estimated Quantity Unit Price
Estimated Cost 1. Compacted earthfill (Class B-2) in darn Zone 1 Zone 2 106, 962. c. y. 80,015 c. y. 2. Compacted earthfill (Class 'B-2) in cutoff trench and pipe trench 3. Concrete (Class-B)
8,971 c. y. 11.74 c. y. 4. Steel bar reinforcing 798 lb.
5. Trash rack 1 each
6. 30" O. D. 5/16 thick Welded steel pipe
asphalt coated 131. 5 L. Ft. 7. 30" dia, steel slide gate
with bronze farings and gate frame, Armco 30-05C (or equal)
with gate lifting mechanism consisting of gate stem oil retainer, pipe housing, stem sleeves, stem couplings, oil fill pipe and a lift Armco Model CPE-2(or equal) with bronze nut and 1 1/2 dis, std. galve. air vent pipe with fittings for a 30" dia, steel slide gate.
(Installed as per detail) 1 each
Company will furnish materials for items 4 to 7, inclusive. Bidder to furnish installation only.
8. Rock riprap on upstream
face of dam 20,774 sq. yd.
9. Common excavation 1,000 c. yo TOTAL
MISAALAMIEGAIMIL
Th. dam is
to be an earth structure with a maximum height of approximately 29feet, longth of 3,003 feet, and crest width of 12 feet. This mill require approximately 3.86077 cubic yards of Class D-2 compacted oibenhient.
The construction work will consist ofs 1. Clearing sod grubbing the des site.
2. Escavatios of unsuitable materiel tram foundation area of dam to the satisfaction of the engineer.
3. Excavation and benkfill of a swt-off trenoh as shots en the plaits
44 installation of an outlet sondwit and appurtenances as shown on the plans. 5. Placement of dam subsakinet to slop.. and elevation as show on the plans. 6. Placement of rock riprap to linos amd grodos as shown on the plan*
7. Constructiom of an excavatod spillway 30 foot wide with 2 to 1 side slopes.
GAGE ROD
A permanent gage rod marked in feet and tenths of feet shall be installed on the upstream face of the dam near the out-let conduit. The zero of the gage shall be placed at the ex-act elevation of the bottom of the outlet conduit at the upper end thereof.
SUPERVISION
All construction shall be under the supervision of a qual—
ified engineer employed by the Soil Conservation Service. The State Engineer or his representative shall have access to the job at all times for inspection purposes. Pursuant to the provisions of the law, the dam is not considered as having been completed until finally accepted in writing by the State Engineer.
CHANGES IN SPECIFICATIONS
These specifications and the accompanying plans shall not be changed in any particular without the prior written con-sent of the State Engineer.
QUALITY OF WORK
All work shall be completed in a workmanlike manner to the lines and grades shown on the plans. Adjacent areas and borrow pits shall be left neat and orderly.
EXTRA 140RK
Unless otherwise provided, no charge for extra work or mat-erials will be allowed unless approved by the engineer and ordered in writing by the owner, with the price stated in such order. •
INTENT OF PLANS AND SPECIFICATIONS
Anything mentioned in the specifications and not shown on the plans or shown on the plans and not mentioned in the specifications shall be of like effect as if shown or men-tioned in both. The contractor shall not take advantage of any errors, discrepancies or omissions which may exist in the plans and specifications but shall immediately call them to the attention of the engineer whose interpretation or oorrection thereof shall be conclusive.
•
SPECIAL SPECIFICATION L-217
The Construction Specifications and Material Specifications
referred
to in the Special Specifications are contained
in the book of "Standard
Specification, Construction and Construction Materials",
issued by the
Soil Conservation Service, Washington, D. C.
(L-217)
SPECIAL SPECIFICATION L-218
COFFERDAMSi UNWATERING & PROTECTION CF WORKS AGA:D,ST FLOODS It shall be the responsibility of the Contractor to take such steps as he considers necessary to protect the project work during construction from runoff after rains or continuous stream flow if such occurs. The size of the drainage area above the project is given on the plans.
The Contractor shall keep the foundation free of water, silt, debris, or other deleterious matter. He shall furnish all material and furnish and operate all equipment required to provide protection. After having served their purpose, all protective works shall be removed. Cmnstruction of the protective works required to protect the work during construction shall be at the expense of the Contractor, as shall be the expense of furnishing and operating the equipment required.
(L-218) 8/59
iultraLugaucumucari
.21ACIE&4ial1agral-SALIKSLIII.
229•1 SQOPEf-or this specifications the term "Principal Spillway" shall mean the monollthis concrete or masonry structure or the concrete pipe or metal culvert pipe or w6tded steel pipe through the dam or other embankment.
ThQ work covered by this specification cwisists of furnishing all labors equipment and material* netessary to perform the necessary pipe trench excava-tion and backfill es specified herein.
229.2 crik4iM PIPZ T.ZriUgroliVaIatt
The Contractor shall perform the excavation for the prIncipel spillway tf, the dtumsions ane elevations indicated on the plans. The pipe trench. uhich will be oxcavatima with power equipments shall have a bottom width and side slopes
2, shown on the plans. If the excavation from the pipe trench is suitable for
use as embankment materials the Contractor will not be paid for the common excAvstion but will be paid for the embankment in ehich the material is placed at his contract price for the class of embankment in ukth the material is placed. If the Ingineer determines that the materiel from the pipe trench is not suitable for use as embankment materials the excavation will be wasted as ,lirected by the Engineer end the Contractor will be paid for the common trench excavation at his controct prise for 00111186 enevation.
229.3
LONWOMUELAWLUML
The Contractor shall beckfill the pipe trench below the bottom of the welded steel pipe and inlet structure in accordance with the specification ter the class of earth fill indieated on the plans
•
(Li.229)1C Rev. 4/64
229.3 (Cont'd)
The Contractor will be paid for this ombankment in place at the contract price per cubic yard for the class of earth fill specified.
229.4 aagaziciiiiimusauggisksiza
The contractor shall excavate for the base of the inlet and outlet structures and anti-seep collars in accordanse with the lines and deviatians shown on the plane and established by the Engineer. Tb• excavations for the portion of the anti-seep collars below the flow line of the pipe shall be made sufficiently wide to permit mechanical tamping of baSkfill material.
After the lower portions of the anti-seep collars have been installed the unoccupied space shall be beskfillod in accordance with paragraph 229$ -TRENCH BACKEILL - of these specifications.
The Contractor will net be paid for the structural excavation required for the anti-seep collars and the pipe as such, as the cost of this work shall be included in the bid price per linear foot of pipe.
For welded steel pipe, the embankment shall be shaped to fit the attar circumference of the pipe in such a manner that at least the lower one-quarter (V4) or ninety (90)) degrees of the outside circumference of the pipe shall
boar against solid undisturbed ground or compacted material for its entire length permitting no tipping or rocking.
Cci.re shall be taken not to excavate below grades indicated on the plans unless directed by the Engineer. Such excavation below grade not directed by the Engineer shall be corrected at the expenso of the Contractor by placing firmly compacted 'dyers of earth umpiring with the specification for backfill.
(L-229)2 Rev. 4/64
-1:-229.4 Contid
•
ft.re unstable material is found during construction operations beneath the bet tot* of the undercut area, the unstable material shall be excavated 414 directed by the Engineer, and the Contractcr will be paid for this work as extra negotiated work in accordance with the contract. The space occupied by this unstable material shall be beckfilled in aceordance to Paregreph
229.3-EMBANKMENT BELOW PIPE of these specifications. The Contractor will be paid for this beckfill at the unit contract price for earth embankment of the *lass placed In the dam.
229.5
IBEOGLINSFAI
After the outlet pips, anti-seep collars. and ether pipe eppurteamukcos hare been installed and inspected by the Regime:, the trench shall be back-filled to a hotilObt of tue (2) feet over the top of the pipe with fine earth material approved by the Engineer in accordance with the specifications ter "Rack! ill", Section 5.7.5 of Construction specification 5-58 Earthfill.
Compaction shall be serried directly to all concrete or metal surfaces so there will be no possibility of seepage at the lunation of the somereto or metal5 and earth backfill, Special care shall be taken to sempect the fill under the
haunches of the pipe conduit. The backfill under the Mynahs* may be hand tamped if suitable mechanisal impactors are not ennoble. The balsas* of the fill from two (2) feet above the top of the pipe te the ground surface after remowal of top soil will be made in aeserdanoe with the compacted earth fill opecificatisms for the adjacent embankment.
The Contractor will net be paid for the compacted trot& baskfill from the bottom of the pipe to the earth surface after removal of top soil as the cost of this work shall be included in the unit contract price per linear foot of pipe.
-11-(L-229)3 c Nev. A/S4
•
229.6
aiUMMUJMNAMILEIEL
At sections of the outlet pipe where the trench dome net extend to a hoight of two (2) fest above the top of the pips, this embankment adjacent to thy pip. shall be compasied in a libe manner to the "Trench Backfill",
Paragraph 2294. The layers en leash side of the pipe shall be placed and tamed concurrently so as to prevent displacement of the pipe by unequal side thrusts. Mechanical compaction shall be serried to a height of two (2) feet above the top of the pipe and laterally in accordance with the diagram shown on the plans or as far as may be required to blend with the body of the fill which is compacted by tellers.
The Contractor will be paid far the embankment adjacent to the pipe above the ground lines after removal of topsoil, at the sentract price per cubic yard for the class of the adjacent compacted fill.
SPECIAL SPECIFICATIONS L-230 CONSTRUCTION OF CUTOFF IN BASE OF DAM
230.1 SCOPE
The work covered by this specification includes the furnishing of all material, equipment and labor and performing all operations in connection with the excavation of a cutoff trench in the dam as shown on the plans or as directed by the Engineer and the backfilling of this trench.
230.2 EXCAVATION OF CUTOFF TRENCH
A cutoff trench of the bottom width and side slopes shown on the plans shall be excavated in the foundation along the main axis of the dam, and shall extend the full length of the dam.
The depth of the cutoff trench shall be as indicated on the plans unless chanced by the Encineer during excavation. The excavated material will be used in the embankment of the dam if deemed suitable by the Engineer.
If the cutoff trench excavation is used directly for embankment in the dam, the Contractor will not be paid for excavating the cutoff trench as such, but will receive payment for the material placed in the embankment at his unit contract price per cubic yard for the class of earth fill in the embankment.
If the excavated cutoff trench material is unsuitable for use in the embankment and is wasted as directed by the Engineer, the Contractor will be paid for excavating and wasting such material at his unit contract price for common excavation. If si>h excavated material is later determined by the Engineer to be suitable and it is used in the earth fill, the Contractor will be paid both for common excavation and compacted earth fill. Measurement of the quantities for payment will be made by the Engineer by cross sectioning
- /3- (L-230)
230.2 (contid)
before and after excavation of the material to be ,Jasted. The volume of common excavation will be determined by the average end area method from cross sections.
230.3 CUTOFF TREWCH BACKFILL
The cutoff trench backfill shall be selected impervious material
approved by the Engineer. The backfill shall be deposited in accordance with the technical specifications for the class of compacted earth fill indicated on the plans and in the bid schedule.
The Contractor will be paid for placing and compacting the cutoff trench backfill at his unit contract price per cubic yard for the class of
compacted earth fill specified.
(L-230) 2 8/59
SPECIAL SPECIFICATION L-232 STRUCTURAL EXCAVATION 232.1 SCOPE
The work covered by this specification consists of furnishing all labor, equipment and materials necessary to perform the structural excavation required to construct the structures shown on the plans. For these specifications
structural excavation shall an all excavation necessary to build the structure or structures in accordance with the plans and these specifications.
232.2 GENERAL - STRUCTURAL EXCAVAT/ON
All excavation shall be made in accordance with the lines and elevations shown on the plans and established by the Engineer. Care shall be taken not to excavate below the elevations indicated on the plans unless directed by the Engineer. Such excavations below grade not directed by the Engineer shall be corrected by placing either firmly compacted layers of earth near optimum moisture content or by placing a sub-floor of mass concrete, as required, to provide a gcod foundation. The Engineer will determine the method to be used. Special care shall be taken not to disturb the bottom of the excavation after excavation to final grade has been made.
The Contractor may make the width and length of the excavation for the structure any reasonable distance to enable him to proceed with his construction plan, unless indicated otherwise on the plans.
Where unstable material is found during construction beneath the bottom of the structure, the unstable material shall be excavated as directed by the Engineer and the Contractor will be paid forihis work as extra negotiated work in accordance with the contract. The space occupied by this unstable
(L-232) 1 Rev. 8/59
-/4
• •
•
232.2 (Contd)
material shall be backfilled by placing firmly compacted layers of selected earth in accordance with the specifications for the class of earth embankment specified for the embankment.
The Contractor will be paid for this backfill at his unit contract price for the class of earth fill specified for the embankment.
232.3 PAYMENT FOR STRUCTURAL EXCAVATION
The Contractor will not be paid for structural excavation as such. All structural excavation, including the cost of labor, equirment and material
required for it, shall be considered as a subsidiary obligation of the Contractor and the cost of this work shall be included in the contract unit prices for
concrete, reinforcing steel, dOncrete or steel pipe lines of the principal spillway through the dam, as the case may be.
(L-232) 2 8/59
SPECIAL SPECIFICATION L-234 COMON EXCAVATION 1. GENERAL
Common excavation shall be performed, measured and paid for in accordance with Construction Specification 4-58 - EXCAVATION except that excavated
material from any of the required excavation deemed suitable by the Engineer, which is hauled and placed in the fill or embankment in one operation will not be paid for as common excavation but will be paid for at the contract unit price for the class of fill or embankment in which the material is placed. When the excavated material is too wet to obtain proper density in the fill using methods outlined in Construction Specification 5-58 - EARTH FILL, the Engineer may request the Contractor to stock-pile the material to dry out, if the material is later used in the fill, the Contractor will be paid both for common excavtion and for fill or embankment.
2. EXCAVATION OF EMERGENCY SPILLWAY AND USE OF TOPSOIL
When excavating the emergency spillway, all topsoil shall be salvaged and stock-piled for use on the emergency spillway, dam or dikes. The spillway shall be over excavated and backfilled with topsoil if called for on the plans.
(L-234)
Rev. 6/62IIEMILLairtiZaica7Z.jszati
SaRSITaiLEASUI flcia4 10-2.
244.1glailiNL
Coeptcted earth fill Class Ba2 shall comply with all the previsions of construction 3pecif1cetion 5-59 -TIMM FILL for this class of fill or embanbmemt except As followss
The not? contained under 'Classification of Competed Fill" table in para-graph 5.4.2. shell be changed to reads Maximum density shall be determined for all Class A fill by the test preemodOrss specified in ASTM Standard 1)1557 Method A, and for all Class 2 fill by the test procedures specified in AfTM Standard 1696. 244.2 CiadialalLigailkaat
(1) Clay and fine silt material will be compacted with tapping roller* unless approved otherwise by the ingineer.
The teaping roller shall be of the sheepsfoot type. The roller shall be capable of being weighted se that Its total weight IR pounds, divided by the total area of maximum number of tamping feet in one rem parallel to the axis of the roller, shall be not less than two hundred (200) pomade per square inch. The roller shall be pulled by 4 tractor of sufficient paper at a maximum speed
of three (3) miles per hour.
(2) Coarse silt, sand and gravel material mill be compacted by a vibratory roller or pneumatic roller opproved by the Amine's. The vibratory or pneumatic roller shall be capable of predusing a compactive effort equal to • weight of 200 pounds per square iamb as the tamping feet of. sbsepsfoot roller.
244.3
WilmasSimplma
Moisture control shall be in acoordence with paragraph 54.1 of Construction Spocification 5,441 -EARTH FILL except for the following mod-ifications
The optimum moisture content for each class of earth material to be used for embanibeent shall be determined by the Engineer. In order to obtain the density required and the deffermability of the embankment desired, the moditure
(1".24411C g,ev. 4/64
•
244.3 Cont'd
content of each material shall be within the percent determined by the Engineer and shall be on the met side of optima.
The Contractor will not be paid for water or for sprinkling the fill material to obtain proper moisture content as the cost of this work shall be included in the contrast price per cubic yard for that class of fill.
344.4
cansilla
Completion of the fill shall be in accordance with paragraph 5.9.2 of Construction Specification 5-56 -EARTH
fru.
The optimum dry weight of each class of material for standard Procter compaction shall be determined by the Engineer. The minimum acceptable density is 95 percent of the dry -weight for optimum density.
244.5
AilMININLAINLJNOMIIIL
Measurememt and payment for sompasted earth fill will be made Is
accordance with paragraph 1410 ef COmetrustion Specificatise 5-560 EARTH FILL.
(1.-244)x Rev. 4,64
-17-SPECIAL SPECIFICATION L-246 BACKFILLING ARCUND STICCTURES (Other Than Metal Pipe and Concrete
Pipe With Cradle)
All spaces excavated and not occupied
by the structure shall be backfilled
with earth up to the surface of the
surrounding ground, with sufficient
allowance for settlement as determined
by the Engineer.
This backfill shall be of the class
of earth fill as the fill to which
it is adjacent and comply with all provisions
of Construction Specification
5-58 - EARTH FILL except "Measurement
and Payment".
The Contractor will not be paid for
backfill around structures up to the
surface of the ground surface after
removal of topsoil. The cost of this work
is considered incidental to the concrete work
and should be included in the unit
contract price for concrete. The yardage
of all embankment above the level of
the ground surface after removal of
topsoil will be included in the measurement
for payment of the class of fill
specified or the class of fill to
which it is adjacent. • -/0-(L-246) Rev. 6/62
•
SPECIAL SPECIFICATION L-260 CONCRETE
(All States in Unit except Nebraska) 260.1 Genera/
-The concrete shall be of the class indicated on the plan and in the bid schedule and shall meet all the requirements of Construction Specification 8A-58 - CONCRETE except for the following modifications:
(1) In paragraph 8A.10 "Placiate change the sentence starting on the third line of sub-paragraph 8A-10.1 "General" (which reads "Concrete shall be placed within 1 1/2 hours after the introduction of the water to the cement and aggregates") to read as follows: "Concrete shall be placed within 1 1/2 hours after the introduction of mixing water to the cement and aggregates. In hot weather or under conditions contributing to quick stiffening of the concrete, a time less than 1 1/2 hours may be specified by the Engineer."
(2) Strengt11 Testk The specifications in paragraph 8A.5 of Construction Specification
8A-58
are supplemented by the following Special Specifications. (a) Three cylinders shall be tested at the age of 28 days to determine that the strength of the concrete meets the requirements of the specifications.
(b) When backfill or embankment material are to be placed againtt or on top of concrete structures, tests for seven day strength will be made on the request from the Contractor for his guidance only in the performance of his operations. Three cylinders shall be tested.
260.2 Expansion and Contraction Joints (1) General
Expansion or contraction joints shall be in accordance with paragraph 8A.12 of Construction Specification 8A-58 - CONCRETE. When called for oa the plans, smooth steel shear dowel bars will extc-n:1 through the expansion joint. (D-260)
260.2 Contd.
An expansion sleeve shall be provided on end of each dowel bar. The sleeve shall be metal of an approved type, crimped or capped on one end, and provide a minimum of three (3) inch length of covering of the dowel bar with a minimum qf three-quarters,
(3/4) of an inch expansion chamber beyond the end of the dowel bar. The portion of the dowel bar on the expansion sleeve side of the joint . shall be coated to prevent bond,between the bar and. the concrete. The dowel bars shall be securely held in place by use of metal dowel chairs at each intersection of a dowel bar and spacer bar, The dowel bars shall be installed on proper
horizontal and longitudinal alignment to assure a workable expansion device.. Me premolded joint filler at these expansion joints shall be held in a true vertical plane by means of a header board., The header board shall remain in place for a minimum of thirty(30)minutes after the concrete has been placed on one side or until the concrete has set sufficiently to prevent sloughing, before the header is removed and the work of placing concrete continued.
(2) Expansion_ Joinl, 7411er
At all expansion joints shown on the plans, a premolded joint filler of the thickness specified, shall be. provided to prevent bond between, and alloy for the expansion and contraction of adjacent parts. The filler material shall be of sufficient length and, width, and Shall be accurately cut, matched and placed to prevent contact of the concrete in the parts of the structure to be separated. Premolded joint material shall be of the type specified on the plans. If a
type is not specified on the plans, premolded joint material shall conform to the latest revision of ASTK Designation D 1752 "Preformed Expansion Joint Fillers for Concrete, Paving and Structural Construction, Nonextruding and Resilient Nonbituminous Types" or to the latest revision of ASTM Designation D 994 "Preformed Expansion Joint Filler for Concrete Bituminous Type," or to ASTM Designation D 1751, ,"Preformed Expansion Joint Filler for Ooncrete Paving
(L-260) 2 Rev. 2/63
•
260.2 Contd.
and Structureal Construction, Nonextruding and Resilient Bituminous Types." (3) Asphalt Treated Roofing Felt
Two layers of heavy, smooth surface asphalt treated roofing felt,
approximate weight 55 pounds per 100 square feet, shall be placed at expansion joints, as shown on the plans.
(4) Waterstope
Waterstope when shown on the plans, shall be installed in accordance with cubparagraph 8A.12.3 "Waterstope" of Construction Specification 8A58
-CONGWE and the materials shall meet the requirements of Construction Material Specification 107-58 - WATERSTOPS except that plastic materials shall conform to ASTM Designation D 1432-58.
(5) PaYmtnt
Payment for labor, materials except dowel bars and equipment required to do the work specified in paragraph 260.2 - "Expansion and Contraction Joints" of this specification Shall be included in the contract price per cubic yard for the class of concrete involved. The dowel bars are included in the reinforcing steel quantity.
260.3 Measurement and Payment
Measurement and payment shall be in accordance with Construction Specification 8A-58 - CONCRETE.
OD (L-260) 3
SPECIAL SPECIFICATICN L-264 STEEL REINFORCEMENT 264.1 Material
Reinforcing steel shall ccmply with the requirements of Construction Material Specification 103-58 - STEEL REINFORCEMENT.
264.2 Placing
The placing of reinforcing steel shall meet all requirements of
Construction Specification 9-58 - PLACING STEEL REINFORCEMENT. 264.3 Measurement and Payment
Measurement and payment shall be in accordance with
paragraph 9.8 "Measurement and Payment" of Construction Specification 9-58.
(L-264)
Sif-ECIAL sFECIFIcATIox L-327
pzki( VA), RILIPAY -
gualivE
IKELDED JOINTS)
327.1
lc=
The work sovered by this specification consists of furnishing all labor, materials and equipmort, and performing all operations in connection with the installatioc of a principid spillwey consisting of a reinforced concrete inlet with trdeh rack and welded steel pipe with melded joints, and corrugsted metal diaphrAgrae, as shown on the plans or herein specified and directed by the i:nginasr.
327.2 LLWIllga,
atacji
The welded steel pipe in the principal spillway shall be of the thicku4ss and diameter shown on the plans. The pipe shall be installed to the line, oriole and length* shown on the plans.
B. jppsclf1catjvps,
._Li
azji..._LAmilFicatscineccachodst••-
All pipe shall befabrIcitad LI, one of the methods prescribed by the latest revisions of Specifi-cations of the American Society for Testing Materials Covering Electric-Fusion-weldird 3teel Pipe, ASTM Designations A-134 or A-139, intended for convallnG liquids, gas or vapor, or to the latest revision of AMA Standard for Fabri-catted eloctrIcally welded steel water pipe of the American Water Works . Associatiln - C-201. All welding shall be electric-fusion-welding.
The steel sheets or plates for pipe of well thickness 3 gage and heavi4r shall conform to the chemical requirements of Low and Intermediate
ensile Strength Carbon-Ste*1 Plates of Structural Quality (ASTM A-283,Grade or AsTM A-139, Grade 8).
(10-327)C Rev. 4/64
-2z-Cont'd
b.
This pipe shall meet the requirements of American Water Works AtioCiation Standards for Mill-Typo Steel Water Pipe, C-202, for electrically welded pipe. The grade of stool used shall comply with this standard.
C. Waiter The diameters of the pipe shall be designated as the
outside diameters. Inside diameter designatiom may be used Mhen approved by En9ineer.
4. $31014111110111Lataikl
1. The pipe shall be furnished with ends beveled for welded joints. 2. maximum working water pressure is fifty (50) pounds per squareinch.
•
caisijagjaAjaajdag. - Beth the inside and outside of the welded steel pipe shall be completely coated with asphalt cement to a minimum thickness of 0.04 inch, except the coating will be left oft the pipe for 6" from each end. Immediately prior to the application of the bituminous costing, the welded steel pipe shall be gleaned of all dirt, mill scale, greet., or low rust and shall be dry.The asphalt cement used for costing and paving the welded steel pipe shall be not less than 99.5 percent soluble in carbon-disulphide.
The asphalt cement shall adhere to the metal tenaciously, shall not chip off in handling and shell protect the metal from deterioration. It shall be .1 such consistency and
characteristic* as to preduse a coating that will possess good adhesive qualities, will not sag ilk flow from a vertical surfase when exposed to atmes pheric temperature of 160° Y.; and will not crack, check of peel when exposed to atmospheric temperature of '30° ?. The coating 'hen applied to the interior or exterior of the pipe 4'1411 no. pinhole or show honeyoombed markings.
(L-321)2 C Rev. V64
327.2 Cont'd
S. Curial Seadial•
trum-portation and unleedins4 every presautien shall be takes to prevent injury to the pipe and its coating. Any pipe which is damaged shall be repaired to the satisfastien ef the Engineer before it is installed.
327.3 MAIR-igilEL
Field welding if steel pipe joints shall be performed in acossidamee with ANNA Standard C-206 - rIBLD KUM COISTUL NATSA PIPS JOINTS.
After welding, the pipe joint* shall be Naively coated with asphalt gement both inside sad outside of the pipe.
The Contract', shall laslude the soot of welding sad seating the pipe joints in his unit eentraot pries per limier feet fer melded stool pipe, as payment will net be mode directly Is. soldiag sad seating the pipe joists, 327•4 CIATID AL !AP,
The corrugated metal diaphregos,u111 be made is seeeedemee with the plem and this specifiestiem4 The serrugsted metal amd sleeting will aemearo to
Construction Material Speelfleaties 110-511. The diaphragms shall he seeurely fastened to the pipe at the legation lodiested is the plasm is aseerdenee with the standard instrwctieme et the pipe momufseturer.
The Contraster shell belies the met of the osmogeted metal diaphragm' and their inetallatieo in his mit omatract prise per linear feet fer welded steel pipe as payment will met be mode dl.Attly fer 'weighing sad installimg the corrugated metal diap%regms
327•5 ET21.11111GUMUZIMUMUSIZZL
The pipe trench omearetisa and heohfill around the pipe shall be — I-ts asserdenee with the sposial specifiestiom for these items. The Centreetar shall include the eset of *sash exeeratim sodhosES ill Is his unit esotres4
(10-31713 C OM Vie
1#
327.5 Cont'd
price per linear foot for welded steel pipe as payment will not be mad: directly for this work.
327.6 REIVORCER cONCRETE INLET AND CUTLET STRUCTURES
The Contractor Shall construct the conorote inlet and concrete outlet structures in accordance with the plans and special specifications for concrete and steel reinforcement. Payment for the concrete and reinforcing steal will be made in accordance with the specifications.
327.7
The Contractor shall construct and install the trash rack in accordance with the plans and Special Specification 1.-340 - STEEL TRASH RAO*. Payment for the trash rack will be sada in accordance with paragraph 14.8 of Con-struction Specification 14-58.
327413
The unit of measurement for payment of this work shall he linear feet and tenths thereof of molded steel pips barrel if the singe thickness or gage and typo of coating show on the plans and listed in the bid schedule. Payment will be mods only for the lengths of pipe *boon on the plans.
Payment will be mede at the contract price per linear foot for "Spillway.-Welded Stool Pipe- Owatee for the sire, thickness or gage and coating shown on the plans and in the bid sshedule. The cost of the pipe per linear foot
shell
include the met ef welding the joints and metal diaphragms installed on the • pipe as sham en the plans and pipe trench excavation and backfill.The contract prise per linear toot if spilluay shall be considered
hill
compensation for all labor, equipment, pips, welding, metal diaphragm including coatings and all incidental work required te install the pipe and appurtensennes including the required ensavation and baskfill.(L-327) 4 C Rev. 4/64
SPECIAL SPECIFICATION L-340 STEEL TRASH RACKS
340.1 General
The Contractor shall furnish and install the steel trash racks in accordance with the details and dimensions shown on the plans. The metal fabrication, painting and installation shall be in accordance with
Construction Specification 14-58 - METAL FABRICATION AND INSTALLATION. Measurement and payment will be made in accordance with Paragraph 14.8 of Construction Specification 14-58. The structural steel shapes, rods and plates shall comply with Construction Material Specification 11758 -STRUCTURAL METAL.
•
-26
-(L-340)
Additional Special Specifications
1. METAL SLIDE GATE. GUEJATTING MECHANISM, AND AIR VENT PIP& The Contractor
'lean furnish and install in the inlet structure of the outlet oonduit one
metal slide gate with type back and frame shown on the plans. The slide gate shall be initialed in accordance with Construction Specification 18-58 - GATES AND VALVE INSTALLATION.
The Contractor shall paint the exposed surfaces of each gate and frame in accordance with paragraph 14.7 - PAINTING of Construction Specification 14-58 - METAL FABRICATION AND INSTALLATION.
The gate shall be inst-lled in such manner as will prevent leakage about the frame.
All anchor bolts shall be inserted into holes provided in gate. The completely assembled gate shall be set into position in the forms and forms shall be true and in line with the travel of the gate. Anchor bolts and other metal work to be embedded in concrete shall be supported firmly and accurately in final position before placing the ooncrete.
The elide shall be in the fully closed position so as to prevent warping of the seat when the concrete is poured. After the forms are removed any voids between the back of the gate and the concrete shall be filled with grout or sealing ocmpound. Warping of the gate to conform to the ooncrete will not be allowed.
Payment will be made for furnishing, installing and painting gate and frame at the lump sum contract price in accordance with Method 1, of para-graph 18.4 of Construction Specification 18-58.
The Contractor shall furnish and install the air vent pipe and gate
lifting mechanism oonsisting of gate stem with stem couplings and stem aleeves as indioated on the plans, galvanized standard steel pipe for gate stem
housing per plans, and steel straps and bolts for fastening pipe to ooncrete posts, one oil retainer similar to the details shown on the plans, one
handwheel gate lift, with bronze nut, as shown on the plans, and oil for pipe housing. (DO NOT FILL RISER PIPE ABOVE GATE STEM HOUSING PIPE FULL
or
OIL: LEAVE SIX INCHES FOR EXPANSION OF OIL LURING !CT WEATHER).The stem and stem housing shall be installed and placed in correct alignment and the entire installation shall operate without binding.
After the gate, stem, and gate hoist hr. I been oompletaly installed, the gate shall be tested by the Contractor by raising and lowering through its full range of operation. Any required changes or adjustments shall be made until the operation of the gate and gate lifting mechanism are approved by the Engineer.
The Contractor will be paid for furnishing and installing each air vent pipe, and gat. lifting mechanism =misting of gate stem, it
couplings and sleeves, gate stem housing p:.pe with fasteners, oil retainer, the wheel gate lift, and oil for the stem housing pipe in eccordanoe with the plans at the lump sum contract price for t1,-Je items.
p.
Cantractor shall install rock
riprap 18-inch thick normal to the
sl:p* on a 6-inch thick sand and
Gravel filter or rock spells
bedding on the
upstream face of the dam. In
the outlet ditch from the principal
spillway and
tn thu diversion channel in accordance
with the plans and Construction
Specifi-cation 17-58 - ROCK RIPRAP.
The send-gravel filter bedding
shell be well graded with a
maximum
size of three inches. Not over fifty percent
shall pass a 1/4 inch SWIM
and not over five percent shall
pass a 200 mesh screen. A 6-inch thick reek
spells bedding may be used as
AA alternate.
in the rock riprap, the rock may vary
in else from 1/2 cubic foot to
0 cubic yard in volume. Rock
fragments less then 1/2 cubic
toot in volume
may be used to fill the voids
between the larger rocks. Not more
then 25
percent of the rock shall consist
of pieces smaller than 1/2 cubic
foot, and
at least 30 percent 'hall consist
of pleses larger than 2 cubic feet. All
rock considered for use as riprap
shall have prior approval Orem
the Engineer
before delivery to the structure site.
Measurement and payment for rook
riprap and filter blanket will be la
aceordance with method 2 of paragraph
17.4 of Construction Specification
17-58- ROCX RIFRAP. This method provides
for payment for filter blanket and
rock riprap per square yard.
$4.
PROPOSAL FOR CONSTRUCTION WORK
This proposal covers construction of the enlargement of a dam for the Montezuma Valley Irrigation Company, Montezuma County, Colorado, and includes the furnishing of labor, materials and equipment required to build the dam complete in accordance with the plans and specifications.
In accordance with the "Advertisement forBids" given by the Montezuma Valley Irrigation Company, dated July 22nd, 1965, and subject to all conditions thereof, the undersigned offers and agrees, should the bid be accepted, to furnis0 all labor and materials and to perform the work for said Owner at the prices shown on the following Bid Schedule:
Ccec
egir ((11/Fae ]Irn demZone 11 71.yr,R CarllIliAlced c,ta hf
((alma 1117.P-Zhicutoff
4. Steel bell,: r einforcing
J106, 962, co yo
5. Trash
rack 11 1.. 74 790iUb each ,6. 30"
0.
D. 5/16 thick
Welded steel pipe
asphalt coated
1311. 5 Lc,7,
30"
dia. steel slide gate
CCUITIptIly R:1]riiluri rrlARowith bronze faring. and gate
for tfremA441 „frame, Armco
30-05C
(or equan
Bk6eir kivglifliadaniwith gate lifting mechenfirn
consisting of gate stem
ct2retainer, pipe housing, stem
sleeves, stem couplings, oil fill
pipe and a lift Armco
Model
CPE-2(or equal) with bronze
nutand 1 1/2 dig.
ea
galve. air
vent pipe with fittings far a
30"
die. steel slide
gate.(Installed as per detail)
each
rrk ininren rTn) rtrinntri,gurn
20,774
sq. ydo
The bid Schedule lists the various divisions of construction
contemplated in these specifications, together with an estimate Of the units of each. With these units as the basis, the 13idder will extend each item, using the cost he inserts in the unit column. Any total cost found inconsistent with the unit cost when bids arc examined will be deemed in error and corrected to agree with the
unit cost which shall be considered correct. It is expressly under-stood that all the various phases of work enumerated in the plans
and specifications, with all their individual jobs and overhead, whether specifically enumerated, included by implication or appurtenant
thereto, are to be performed by the Contractor under one of the items listed above, irrespective of whether it is named in said list.
The undersigned represents that he has examined the area and ground of the proposed work and is thoroughly familiar with the conditions under which the work is to be done, and he agrees that this bid is made subject to the Instructions to Bidders, General Conditions, Specifications, Schedules and D,-awings referred to in the "Advertisement for Bids" and which have been furnished him by the owner, and that the same are made a part thereof. The contractor or bidder understands he will not be paid for stripping sites, borrow areas and other excavation, as such, as the cost of this work shall be included in the other items.
The undersigned agrees, in case this bid is accepted, to execute a written contract and to furnish a performancc bond, as provided in the specifications. lie further agrees to in work under the contract within twenty one (21) days after the contract is signed, and to complete the same within ninety (90) working days thereafter, unless an extemion of time is granted as provided in the specifications. The undersigned presents with this bid a'certified check, draft, or bid bond in the sum of $
