Downstream Flood Mitigation Measures - Marin County Flood Control District

Description

The Marin County Flood Control and Water Conservation District has conducted sophisticated computer modeling to help predict the behavior of the creek during serious storm events. The District is gathering additional field survey data and performing the technical analysis necessary to identify the following associated with bridge removal:

Properties with a modeled rise in Base Flood Elevation;

Affected building structures; and

Appropriate mitigation.

If there is a modeled rise in Base Flood Elevation to a property due to bridge removal, the District will inform the property owner(s) before submitting its CLOMR application to FEMA. These notifications are anticipated to happen in the second quarter of 2025. After FEMA deems the CLOMR application submittal complete, the District will notify applicable property owners of impacts, as defined by FEMA, to building structures and necessary mitigation. This is currently anticipated by the end of 2025. Please note that timelines may change due to the complex nature of the project, including coordination with multiple local, state and federal entities.