2527_B ITB.pdf

PDF 6 MB Posted Jan 29, 2025

Attached to: 2527-B: Kedron Dam Intake Telescoping Valve
Solicitation number: PE-65600-NONST-2025-000000120
Issued by: Douglas County, Georgia

About this file

Written by GovTribe AI · Feb 3, 2025

This is an Invitation to Bid (ITB 2527-B) issued by Fayette County, Georgia for the installation of a telescoping valve at the Lake Kedron Dam intake structure. The project involves installing a telescoping valve with scum baffle, custom fabricated elbow and spool, bracing, and hand operator at the Lake Kedron Dam, a Category 1 earthen embankment dam located at 616 Wingspread in Peachtree City. A mandatory pre-bid conference will be held on Monday, February 24th, 2025 at 9:30 a.m. at 616 Wingspread in Peachtree City. Questions are due by February 27, 2025 at 3:00 p.m., and bids must be received by March 4, 2025 at 3:00 p.m. at the Purchasing Department.

The project requires bidders to provide all permits, materials, equipment, mobilization, commercial diving certifications, and labor needed. Specific requirements include installation of SS 10-inch stainless steel spool, support brackets, operating stem and guide brackets, valve operator and spool extension, and handwheel extension. A bid bond of 5% of the total bid amount is required, and the successful bidder must provide performance and payment bonds each equal to 100% of the contract value. The project includes a fixed $5,000 contingency allowance. The contractor must maintain specified insurance coverage including $1,000,000 general liability and automobile liability insurance. A minimum 1-year warranty is required on all work provided.

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6' -6

1' -6

2' -1

MIN.

2' -0

LAKE KEDRON NORMAL POOL 835.00

1. CONTRACTOR TO VERIFY ALL DIMENSIONS PRIOR TO ORDERING EQUIPMENT AND MATERIALS. NOTIFY FAYETTE COUNTY

WATER SYSTEM (FCWS) OF ANY DISCREPANCIES.

2. CONTRACTOR TO COORDINATE WITH FCWS DURING CONSTRUCTION TO PREVENT DISRUPTIONS TO NORMAL OPERATIONS OF RAW WATER STRUCTURE. PROJECT TO BE COMPLETED WITHOUT LOWERING THE NORMAL OPERATING LEVEL OF LAKE

KEDRON.

3. CONTRACTOR TO COORDINATE WITH VALVE MANUFACTURER TO PROVIDE A SPOOL OR ACTUATOR EXTENSION TO ELEVATE

THE HANDWHEEL OPERATOR CENTERLINE 2'-10" ABOVE THE RAW WATER STRUCTURE FFE.

4. CONTRACTOR TO VERIFY THAT THE HANDWHEEL OPERATOR WILL NOT COME IN CONFLICT WITH EXISTING ELECTRICAL AND INSTRUMENTATION. CONTRACTOR TO CORE INTO EXISTING STRUCTURE USING METHODS TO PREVENT SIGNIFICANT DAMAGE TO THE BUILDING EXTERIOR. CORE SHALL NOT EXCEED MORE THAN 2 INCHES IN DIAMETER GREATER THAN THE HANDWHEEL OPERATING STEM. CONTRACTOR SHALL SEAL THE OPERATING STEM WALL PENETRATION AT THE OPINION OF THE

MANUFACTURE AND APPROVED BY FCWS.

5. ALL PIPING SHALL BE 304 SS SCH 80 UNLESS NOTED OTHERWISE.

6. CONNECT TO EXISTING 10” ORIFACE WITH FABRICATED SS LONG RADIUS 90-DEGREE BEND. 90-DEGREE BEND SHALL BE FABRICATED WITH 24"x24"X1" 304 SS PLATE. SEE DETAIL. CONTRACTOR SHALL SUBMIT FABRICATION SHOP DRAWINGS AND

SPECIFICATIONS TO FCWS FOR APPROVAL BEFORE FABRICATION.

7. TELESCOPING VALVE SHALL BE PROVIDED BY ONE OF THE FOLLOWING MANUFACTURERS, COMPLETE WITH A SHOP DRAWING

AND SPECIFICATION, SIGNED AND SEALED BY A LICENSED PROFESSIONAL FCWS:

A. TRUMBULL MANUFACTURING, INC.

B. TROY VALVE

C. OR FCWS APPROVED EQUAL

TELESCOPING VALVE SHALL CONSIST OF THE FOLLOWING:

SLIP TUBE:

A. MATERIAL SHALL BE 304 SS

B. SLIP TUBE TOP CONFIGURATION SHALL BE PLAIN END

C. SCUM BAFFLE SHALL BE 304 SS

FLANGED CONNECTION:

TELESCOPING VALVE SHALL BE FABRICATED SO AS TO BE ABLE TO BE CONNECTED TO A 125# FLANGE

RACK & PINION:

A. THE OPERATOR SHALL BE SAFETY-LOCK AND SELF-LOCKING RISING STEM

B. A CLEAR STEM COVER W/ TRAVEL SCALE SHALL BE PROVIDED FOR THE TRAVEL RACK

FLOOR STAND AND OPERATOR:

A. OPERATOR SHALL BE HAND WHEEL, NON-RISING STEM

B. FLOOR STAND SHALL BE CAST DUCTILE IRON EPOXY COATED

TELESCOPING VALVE SHALL ALLOW FOR 6.2 FT OF TRAVEL

SCUM BAFFLE:

MAXIMUM OUTSIDE DIAMETER = 18"

SUPPORT BRACKET AND ANCHORING:

TO BE SUPPLIED AT MANUFACTURER'S RECOMMENDATION AND APPROVED BY FCWS. MANUFACTURE SHALL SUPPLY BRACKET TO SUPPORT THE FLOOR STAND AND OPERATOR, THE 10" PIPE SPOOL AND PROVIDE STEM GUIDE BRACKETS AS NECESSARY.

SUPPORTS SHALL BE 304 SS

ANCHOR BOLT SHALL BE SUPPLIED BY THE CONTRACTOR. SEE "NOTE 8" .

8. CONCRETE ADHESIVE ANCHORS:

ADHESIVE ANCHORS SHALL CONSIST OF THREADED RODS ANCHORED INTO HARDENED CONCRETE USING AN ADHESIVE SYSTEM.

PRODUCTS AND MANUFACTURERS: PROVIDE ONE OF THE FOLLOWING:

A. HIT-RE 500-V3 INJECTION EPOXY ADHESIVE ANCHORING SYSTEM, BY HILTI FASTENING SYSTEMS, INC.

B. SET-3G HIGH STRENGTH EPOXY ADHESIVE, BY SIMPSON STRONG-TIE COMPANY, INC.

C. OR FCWS APPROVED EQUAL.

ADHESIVE:

ADHESIVE SYSTEM SHALL USE TWO-COMPONENT ADHESIVE MIX.

EPOXY ADHESIVES SHALL COMPLY WITH PHYSICAL REQUIREMENTS OF ASTM

C881/C881M, TYPE IV, GRADE 2 AND 3, CLASS A, B, AND C, EXCEPT GEL TIMES.

ADHESIVES SHALL HAVE A CURRENT EVALUATION REPORT BY ICC EVALUATION SERVICE FOR USE IN BOTH CRACKED AND

UNCRACKED CONCRETE WITH SEISMIC RECOGNITION FOR SDC A THROUGH F AS TESTED AND ASSESSED IN ACCORDANCE

WITH ICC-ES AC308 WHICH INCORPORATES THE REQUIREMENTS OF ACI 355.4-11.

ANCHOR:

A. PROVIDE CONTINUOUSLY THREADED, AISI TYPE 316 STAINLESS STEEL ADHESIVE ANCHOR ROD. THREADED RODS SHALL

COMPLY WITH THE CONCRETE ADHESIVE ANCHOR MANUFACTURER’S SPECIFICATIONS AS INCLUDED IN THE ICC SERVICE EVALUATION REPORT FOR THE ANCHOR SUBMITTED. NUTS SHALL HAVE SPECIFIED PROOF LOAD STRESSES EQUAL TO OR GREATER THAN THE MINIMUM TENSILE STRENGTH OF THE STAINLESS STEEL THREADED ROD USED. PROVIDE ASTM

A194/A194M, GRADE 8S (NITRONIC 60) STAINLESS STEEL NUTS WHERE REQUIRED.

B. STAINLESS STEEL THREADED ROD SHALL COMPLY WITH DUCTILITY REQUIREMENTS OF ACI 350 APPENDIX D OR ACI 318

CHAPTER 17.

UNLESS APPROVED BY FCWS, DO NOT USE POWER-ACTUATED FASTENERS OR OTHER TYPES OF BOLTS AND FASTENERS NOT

SPECIFIED.

HIGH DRAWDOWN LEVEL: 831.20 HWL 831.20

LWL 825.00

LAKE KEDRON NORMAL POOL 835.00

EXISTING INTAKE

STRUCTURE

FFE 845.75

2-FT HANDWHEEL EXTENSION

SEE NOTE 4

SUPPORT BRACKET

SEE NOTE

SPOOL OR OPERATOR EXTENSION

SEE NOTE 3

TELESCOPING VALVE

WITH SCUM BAFFLE.

SEE NOTE 7

SUPPORT BRACKET

SEE NOTE

TOP SPOOL FLANGE

ELEVATION: 824.31

FFE 845.75

10" 304 STAINLESS STEEL

PIPE SPOOL

GENERAL NOTES

EXISTING 10"

DUCTILE IRON

WALL PIPE

2'-0"

CLEARANCE (TYP.)

24" x 24" x 1"

304 SS PLATE

24" x 24" x 1"

304 SS PLATE

24" x 24"

RUBBER (SBR) -

FULL FACE GASKET

NOTE:

ALL STAINLESS STEEL MANUFACTURING

SHALL CONFORM TO AWS D1.6/D1.6M

STEM GUIDE

BRACKET

NOTE:NOTE:

CONTRACTOR TO COORDINATE WITH

MANUFACTURER TO ENSURE NO

CONFLICT WITH THE SUPPORT

BRACKET AND THE SCUM BAFFLE.

NOTIFY FCWS OF ANY

DISCREPANCIES OR CHANGES TO

WATER LEVEL OPERATING RANGE.

FLANGE CONNECTION AND

GASKETS TO BE SUPPLIED BY

THE VALVE MANUFACTURER

EXISTING CENTERLINE

ELEVATION: 816.42

STEM GUIDE

BRACKET

LOW DRAWDOWN LEVEL: 825.00

EXISTING TIMBER

FRAMED BUILDING WITH

PLYWOOD SIDING

FLANGE x FLANGE CONNECTION

WITH 316 SS BOLTS AND

RUBBER (SBR) FULL FACE GASKET

10" 304 STAINLESS STEEL

90° LONG RADIUS BEND,

SEE NOTE 6

1'-4 5/8"

1" 316 SS ANCHOR BOLTS

DRILL AND EPOXY WITH 6"

EMBEDMENT,

TYPICAL 12 PLACES

SCALE: 1" = 1'-0"

SCALE: 3/4" = 1'-0"

SCALE: 3/4" = 1'-0"SCALE: 1/2" = 1'-0"

(12) BOLT HOLES FOR

1" 316 SS BOLTS

AT 6" O.C.

AutoCAD SHX Text User:BJACKSON Spec:AUS-NCSMOD File:C:\USERS\BJACKSON\ARCADIS\FAYETTE CO FCWS - CAD\LAKE KEDRON EFFLUENT STRUCTURE MODIFICATIONS.DWG Scale:1:1 SavedDate:1/13/2025 Time:11:15 Plot Date: Jackson, Brad; 1/13/2025; 11:24 ; Layout:LAYOUT1

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FAYETTE COUNTY, GEORGIA

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FAYETTE COUNTY WATER SYSTEM

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2839 PACES FERRY ROAD SUITE 900, ATLANTA, GA 30339

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TE: 770-431-8666 WWW.ARCADIS.COM

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245 MCDONOUGH RD FAYETTEVILLE, GA 30214

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JANUARY 2025

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ARCADIS U.S., INC.

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CIVIL

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FAYETTE COUNTY WATER SYSTEM (FCWS) LAKE KEDRON INTAKE STRUCTURE MODIFICATIONS

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AS SHOWN

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E. VAN DEVENTER

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B. JACKSON

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SECTION- EXISTING INTAKE STRUCTURE

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EMV

DOC012925-01292025124625.pdf

2024.01.13 Arcadis_Lake Kedron Effluent Structure Modifications FINAL.pdf

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File details come from the government source that posted it. Updated Feb 3, 2025.