FROM: James D. Herberg, General Manager
Originator: Kathy Millea, Director of Engineering
SUBJECT:
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REDHILL RELIEF SEWER RELOCATION AT STATE ROUTE 55, PROJECT NO. FE18-13
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Receive and file Bid Tabulation and Recommendation for Redhill Relief Sewer Relocation at State Route 55, Project No. FE18-13;
B. Award a Construction Contract to SRK Engineering, Inc. for Redhill Relief Sewer Relocation at State Route 55, Project No. FE18-13 for an amount not to exceed $2,213,000; and
C. Approve a contingency of $331,950 (15%).
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BACKGROUND
The Orange County Transportation Authority (OCTA) is implementing the State Route 55 (SR-55) Improvement Project to widen SR-55 between Interstate 5 and Interstate 405. The Orange County Sanitation District (OC San) owns a sewer running under SR-55 immediately south of Warner Avenue in the City of Santa Ana.
RELEVANT STANDARDS
* Comply with California Public Contract Code Section 20103.8, award construction contract to lowest responsive, responsible bidder
* Maintain collaborative and cooperative relationships with regulators, stakeholders, and neighboring communities
* Protect OC San assets
PROBLEM
The SR-55 Improvement Project will widen the freeway over an existing OC San sewer. To protect the sewer, OC San must encase the sewer in the newly widened right-of-way and move an interfering manhole outside the freeway limits.
PROPOSED SOLUTION
Award a contract for Redhill Relief Sewer Relocation at State Route 55 to SRK Engineering, Inc. This project will extend a protective casing for the portions of the sewer to remain under the widened freeway and relocate a manhole out of the widened right-of-way. Moving the manhole requires a sewer realignment and the addition of three new manholes to avoid a retaining wall along Warner Avenue.
OCTA has agreed to compensate OC San for t...
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