The Marin Municipal Water District (MMWD) recently completed work on the Jewell Creek Fish Passage Restoration Project. The project entailed replacing a failed corrugated metal pipe culvert underneath the Cross Marin Trail at Jewell Creek near its confluence with Lagunitas Creek in west Marin. The failed culvert was putting MMWD’s Nicasio water transmission line, located above the failing culvert, at risk and was also affecting fish passage. Construction began on June 27, 2016 and was completed on November 28, 2016.
The scope of the restoration included: stabilizing the District’s main raw-water transmission line from Nicasio Reservoir to San Geronimo Treatment Plant, repairing a section of the Cross Marin Trail that had collapsed due to the failing culvert, and installing a new fish-friendly arch culvert. The project was funded in part by a Proposition 84 – Integrated Regional Water Management Program grant in the amount of $960,000, which consists of an award of $720,000 and a MMWD matching contribution of $240,000.
This project aligned with MMWD’s five-year strategic plan to improve water supply resiliency and maintain facilities and equipment sufficiently.