Title
Authorize the Auditor-Controller to increase appropriations in the amount of $175,932 in the FY 2017-18 Adopted Budget for the Capital Projects Fund 402-3000-8468-RMA014, where the financing source is uncommitted fund balance 402-3101, to fund Phase I and II of the Elkhorn Tide Gate Repair. 4/5th Vote Required
Report
RECOMMENDATION:
It is recommended that the Board of Supervisors:
Authorize the Auditor-Controller to increase appropriations in the amount of $175,932 in the FY 2017-18 Adopted Budget for the Capital Projects Fund 402-3000-8468-RMA014, where the financing source is uncommitted fund balance 402-3101, to fund Phase I and II of the Elkhorn Tide Gate Repair. 4/5th Vote Required
SUMMARY:
On December 12, 2017, the Board of Supervisors (Board) approved a temporary plug to the pipe with the missing tide gate (Phase 1). Staff estimated Phase 1 would be about $25,000. Adding inspection of all seven (7) gates while divers are in the water (Phase II), realizes savings but increases costs to $175,932 to complete Phase I and II concurrently. Once the inspection has been completed, staff will evaluate the condition of the remaining gates and evaluate how to proceed with the permanent repair. Staff has been informed from the regulatory agencies that Phases I and II will not require permits for the temporary repair.
DISCUSSION:
Carneros Creek drains into The Elkhorn Slough via seven (7) culverts under Elkhorn Road. To control the salt water migration up Carneros Creek, the culverts are fitted with tide gates. The tide gates were initially installed by the adjacent property owners in the 1940's under an encroachment permit and subsequently replaced by the Public Works Department in 1995.
In July 2017, the Elkhorn Slough Foundation (ESF) informed the County that a tide gate on Elkhorn Road Tide Gate system for the Carneros Creek Crossing went missing. It was presumed that this occurred during one of the 2017 winter storm events. Due to a long and compli...
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