MEMO TO: Members of the City Council
FROM: Mayor Angela Birney
SUBJECT:
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Acceptance of Construction: Pressure Reducing Valve Station Replacement (Phase 1), and Approval of the Final Contract in the Amount of $3,016,188.45, with Razz Construction Inc. of Bellingham, Washington, Project No. 20021525
I. RECOMMENDED ACTION
recommendation
Approve the final contract amount with to Razz Construction Inc. of Bellingham, Washington, for the base bid amount of $3,054,194, plus or minus change orders and bid items increases or decreases, resulting in a final contract amount of $3,016,188.45, and accept construction of Pressure Reducing Valve Station Replacement, Project No. 20021525, as of March 17, 2020.
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II. DEPARTMENT CONTACTS
Dave Juarez, Director of Public Works 425-556-2733
Gary Schimek, Acting City Engineer 425-556-2742
Eric Dawson, Project Manager 425-556-2867
III. DESCRIPTION/BACKGROUND
Project Purpose
This project replaced 10 Pressure Reducing Valve (PRV) Stations throughout Redmond.
Background
The City uses approximately 84 PRV stations to manage water pressure in the City's distribution system. Many of these PRV stations were built in the 1960's and 1970's and are in need of refurbishment. The MOC staff have inspected and evaluated all of the City's PRVs and generated a list of 27 PRVs that need to be rehabilitated or replaced. These PRVs have aged and degraded to a point that they no longer meet the City's standard due to pipe corrosion, age, type of materials used, and environmental conditions. Corrosion is the main cause of degradation, but other issues include vault drainage and safe access. Ten (10) of the 27 valves were evaluated by MOC staff and Engineering staff and identified as a priority for replacement.
Project Description
This project abandoned and replaced 10 Pressure Reducing Valve Stations throughout Redmond. The construction provided for installation of new vaults, valves, piping an...
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