SCH Number 2025100945

Project Info

Title

North Marin Line Stabilization Project Final Supplemental IS/MND

Description

Marin Water proposes to replace two seismically unsound San Geronimo Creek pipeline crossings of the North Marin Line (NML) with seismically resistant crossings. Marin Water would replace one pipeline crossing with approximately 1,700 feet of new pipeline within Sir Francis Drake Boulevard. The other pipeline crossing would be replaced with a 36-inch pipeline installed within a single span steel truss supported on drilled piers. The pipeline would emerge from the ground approximately 20-feet back of the creek’s top-of-bank and rise approximately 2 to 3-feet above the adjacent ground surface before crossing the creek. The Project also includes cutting and removing the existing pipeline and existing piles in San Geronimo Creek. The Project would be constructed between August and November 2026. The new pipeline segments would operate as the current NML does, providing water to Marin Water customers.

3 documents in project