CIP21002_Addendum 2.pdf

PDF 3 MB Posted

Attached to
Pipeline Project CIP21002
Solicitation number
CIP21002
Issued by
San Diego County, California

About this file

This document is Addendum No. 2 for the Helix Water District's Pipeline Project CIP21002, issued on February 12, 2025. The addendum covers a non-mandatory pre-bid conference held on February 6, 2025, with key details including bid submission instructions, project specifications, and clarifications. Bids are due by Thursday, February 20, 2025, at 10:00 a.m. at the Helix Water District Administration Office. The project involves installing approximately 7,300 linear feet of 8 and 10-inch diameter PVC pipe, including 1,200 linear feet replacing 6-inch AC pipe at Culowee and 220 linear feet of temporary 6-inch HDPE above-ground piping from El Capitan Drive to Hillside Drive. The contract duration is 260 working days with 9 mobilizations, and liquidated damages are set at $1,000 per day beyond the Final Completion Date.

The Engineer's Estimate for the project is $3,800,000. The addendum includes detailed site photographs clarifying the temporary HDPE highline alignment and preferred location of an AC disposal bin. Bid documents emphasize that plans, specifications, and addenda are the sole basis for bidding, superseding all verbal communications. The District reserves the right to reject any and all bids after opening. Additional notes specify post-construction requirements, such as installing Type 2 slurry at Hillside Drive, El Capitan Drive, and the intersection of La Mesa Boulevard and Culowee Street, as well as district work for relocating existing meters and connecting to private plumbing.

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CIP21002_Addendum 1.pdf PDF
CIP21002_Attachment 1.pdf PDF
CIP21002_plans.pdf PDF
CIP21002_specs.pdf PDF

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HELIX WATER DISTRICT

7811 University Avenue

La Mesa, CA 91942

Addendum No. 2 – Contract No. CIP21002

Contract Documents and Specifications for Pipeline Project CIP21002.

The following modifications and clarifications are provided for incorporation into the WORK as an addendum to the CONTRACT DOCUMENTS. There is one (1) item within Addendum No. 2, which includes the non-mandatory pre-bid conference meeting minutes.

Each bidder shall refer to this addendum in the bid documents. Receipt of Addendum No. 2 must be acknowledged on Section 00300, page 15 and attested to by signature on Section 00300, page 24; failure to do so may be sufficient cause for rejection of the bid.

Changes to contract documents:

1. Non-mandatory Pre-Bid Conference meeting minutes from Thursday February 6, 2025 at 2:00pm at 7811 University Ave., La Mesa CA 91942. Includes pictures to clarify the temporary 6-inch HDPE above ground highline alignment from El Capitan Drive to Hillside Drive, per sheet 13 of plans. And shows preferred location of AC disposal bin, per sheet 13 of plans.

Issued: February 12, 2025

Timothy J. Ross, Director of Engineering

NON-MANDATORY PRE-BID CONFERENCE

CIP21002 – La Mesa Pipeline Replacement Project

February 6, 2025 – 2:00 p.m.

7811 University Ave. Board Room

I ATTENDEES

A. Introduction of all district staff in attendance.

a. Greg Jones, Debbie Lundy, Shaun Stotts, Milica Schipper, and Tim

Ross.

B. Roll call of all non-district attendees for meeting minutes.

a. None.

II BID INFORMATION

A. Bids are due no later than Thursday, February 20, 2025, at 10:00 a.m. at the Administration Office of Helix Water District, 7811 University Avenue, La Mesa, California.

B. Bid opening will be conducted in person at the Administration Office.

C. Results of each bid publically opened will be made available electronically on bidnet.

D. Any addendum to the project will be issued via bidnet to all plan holders.

E. Engineer’s Estimate for the project is $3,800,000.

F. Plans, specifications, and addenda thereto, are the only project documents and should form the entire basis for bidding, superseding all verbal communications.

G. The District reserves the right after opening bids to reject any and all bids.

III PROJECT OVERVIEW

A. Work involves the installation of approximately 7,300 linear feet of 8 & 10-inch diameter PVC pipe. 1,200 linear feet of that replaces 6-inch AC pipe with 10” PVC at Culowee. Install 220 linear feet of 6-inch temporary HDPE above ground from El Capitan Drive to Hillside Drive. Pictures to clarify HDPE alignment attached herein.

B. 00300 – Bid Form

a. Bid items 6, 34, 54, 58.

C. 00500 – Contract

a. Duration = 260 working days. 9 mobilizations.

b. Liquidated damages = $1,000 per day beyond the Final Completion

Date, will be assessed for delayed performance D. 00800 – Special Conditions

a. 1-7 Construction Sequence.

b. 1-27 Disposal of Asbestos Cement Pipe

i. Bin location. Attached herein.

IV OPEN DISCUSSION AND QUESTIONS

A.

7988 El Capitan

Looking North

Remove FH head and install tee per plan, sheet 13.

Temporary 6-inch HDPE above ground highline (schematic alignment)

HWD temporary construction easements are in place for schematic alignment.

7984 El

Looking North

Capitan

Looking South

Capitan

Looking North

District crews to install 6" BO per plan, sheet 13, near 7939 Hillside Dr.

EXP. 6/30/24

C 51548

RE

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RE

D PROFESSIONAL ENG

INEER

STATE OF CA L I FORN IACIVIL

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TH

LEEN S . HAYNES

EXP. 6/30/24

C 51548

RE

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RE

D PROFESSIONAL ENG

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STATE OF CA L I FORN IACIVIL

KA

TH

LEEN S . HAYNES

RESTRAIN ALL JOINTS FROM

STA 80+80 TO STA 81+52

NO JOINTS PERMITTED FROM

STA 83+14 TO STA 83+34

2,400 sf

1,800 sf

14. AFTER CONSTRUCTION, INSTALL TYPE 2

SLURRY AT HILLSIDE DR. (APPROX 1,800SF) AND

EL CAPITAN DR. (APPROX 2,400SF).

15. AFTER CONSTRUCTION, INSTALL TYPE 2

SLURRY AT INTERSECTION OF LA MESA BLVD AND

CULOWEE ST. (APPROX 3,600SF).

16. WHERE NEW WATER SERVICE INSTALLATIONS

OCCUR, DISTRICT WORK TO RELOCATE EXISTING

METER AND CONNECT TO PRIVATE PLUMBING.

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HWD STAFF MET WITH CITY OF LA MESA

STAFF. THIS IS PREFERRED LOCATION

OF AC DISPOSAL BIN. CONTRACTOR TO

SHOW THIS LOCATION IN TRAFFIC

CONTROL PLAN.

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