Addendum No_1 INTRO.pdf

PDF 210 KB Posted

Attached to
2023-ITB-02 Timberline Pump Station Project
Solicitation number
PE-66863-NONST-2024-000000001
Issued by
Walker County, Georgia

About this file

This document is an addendum to a bid solicitation for the Timberline Pump Station project issued by the City of Young Harris, Georgia. The addendum modifies the original bid documents, drawings, and specifications. Key details include:

The bid number is 2023-ITB-02, and the project involves installing a new pump station and related water infrastructure along Timberline Drive. The addendum addresses questions raised at the prebid meeting, including the use of wet taps or cut-ins, the existing pipe materials, and the compatibility of the existing pump with the new tank. It also provides revisions to the electrical plans, pump station details, pipe clearances, and valve and bypass line locations. The bid date and time remain unchanged.

The addendum specifies the contractor must coordinate with the City of Young Harris Water Department, have a utility contractor license, and complete the pipeline installations within a 4-hour window on two separate days to limit service disruptions. Pipe materials, fittings, and assembly must be verified prior to excavation. Ductile iron pipe is required for above-ground and in-slab portions of Tank No. 2.

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Other files

File Type Posted
Bid cancellation.docx DOCX document
Scope of Work FINAL.pdf PDF
YH Invitation for Bids FINAL.pdf PDF
Addendum No_1 PLANS.pdf PDF
Timberline Sign_In Sheet 10_10_23.pdf PDF

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i:\aprojeng\2021\21016wd - yh timbln bps\proj admin\bid\10-17-2023 timberline addendum 1 arc - copy.docx

Addendum 1.

Timberline Pump Station

Oct. 20th, 2023

City of Young Harris Bid Number 2023-ITB-02

The items in this addendum modify the documents, drawings, and specifications released at the time of advertisement for bids and available on Hussey Gay Bells EGNYTE web site. Item not modified by this addendum remain unchanged and are not modified. Only modified drawings are included in this document. No change in bid date or time.

Prebid Meeting Questions

1. Can the contractor use wet taps or cut ins (tees)?

Contractor shall at the beginning of the project before any excavation work with and coordinate with the City of Young Harris Water Department to locate isolation line valves on the 6-inch water main along Timberline Drive. To the knowledge of the Engineer there MAYBE isolation valves at pump station #2 and at the intersection of Timberline

Drive and Main Street (US HWY 76). Because of the need to install line valves and tees wet taps are not allowed. See Drawings C-04 and C-09. Means and methods should be used to limit the out of service time to 4 hours on two different days.

2. What is the existing water line pipe type?

The Contractor is responsible for carefully excavating the existing 6-inch and 4-inch pipe at the locations of connections as shown on C-04 and C-09 and determine the pipe material! City records show that the 6-inch pipe is PVC-SDR-16 Class 200 psi -C900; the

4-inch pipe is National 1185 611 CTS DR25 PVC1120 PC100-T400 at 73 degrees AWWA

C-900. The contractor should consider all existing pipe as brittle and under continuous service.

3. Will the existing pump operate properly with head from the Tank No.2? Yes. At 6.5 psi?

Existing pump station operates with an influent pressure of 15 psi when the College

Storage Tank is full.

4. Will a utility contractor license be required?

Yes

5. Will there be permit fees for electrical?

No

6. Will the tank/water freeze under temperature conditions? Per the manufacturers representation the double walled HDPE tank is rated at -20 degrees Fahrenheit against structural failure.

i:\aprojeng\2021\21016wd - yh timbln bps\proj admin\bid\10-17-2023 timberline addendum 1 arc - copy.docx

Revisions to Development Plans

• Electrical plan sheets E-1 through E-6 added to the Site Development Plans.

• Revised USEMCO Pump Station No.1 package detail drawing on sheet C-05.1.

• Reference on pages C-10 & C-10.1 of the Site Development Plans to “detail ‘IMT 6550 on Sheet CD-03” is a typographical error. The correct reference should be to Sheets WD-

02 & WD-03 which are included with the published plans.

• Correction to callouts on Sheet C-02 for both gates to be swing gates for Pump Station

No.1.

• Revised fence and gate details added to Sheet CD-01.

• A dimensional change on Sheets C-10 & C-10.1 from 1’ clearance to 7” clearance to the centerline of the influent and effluent pipes for Tank No.2 as per the tank detail on sheet

WD-02 on the Site Development Plans.

• Callout added to Sheets C-10 & C10.1 for use of dresser coupling on both influent and effluent lines.

• Control valve with 2” PVC for float valve in Tank No.2 changed to a solenoid valve on sheets C-10 & C-10.1. See Electrical Plans

• Revised plans reflect multiprobe in water storage Tank No.2 instead of float switches.

• Revised Operations Sequence Summary on Sheet C-01.2.

• Bypass line with check valve location moved from inside Pump Station No.1 enclosure to outside of the fence, see Sheet C-04.

• Added callout for 4x4”x4” tees on sheet C-09.

• Note added to Sheets C-04 and C-09 for all valves and pipes to be assembled prior to excavation of the pipeline to be cut. Time to install these assembles is limited to 4 hours each location. Only one installation is allowed each day/location.

• Revised proposed pump station yard piping from 4” to 6” diameter.

• All piping above and in slab for Tank No.2 revised to ductile iron pipe.

File details come from the government source that posted it. Updated .