​SLR-01

Coordinate with Other Agencies on Floodplain Mapping Updates and Identification of Improvements to Protect Vulnerable Populations, Functions, and Structures

Implementation

  • Coordinate with the applicable Reclamation Districts (RDs), FEMA, and CA DWR to regularly update floodplain mapping for potentially affected areas to reflect changes in Base Flood Elevations that account for sea-level rise.

  • Partner with the applicable RDs to establish measures to protect populations, functions, and structures within the affected areas, including performing continued maintenance of RD levee systems and relocating vulnerable communities, infrastructure, and facilities where applicable.​

Benefits: Updates to floodplain mapping that include changes in Base Flood Elevations with sea-level rise inputs would inform future planning and investment decisions. Recognizing that the impact of sea-level rise will manifest gradually over the course of the century, and that according to current projections, 8 percent of Sacramento County is at risk of inundation from a 1.41-meter rise in sea level coupled with a 100-year flood event, Sacramento County should rely on partnerships with agencies and organizations conducting sea-level rise research to identify actions that protect the County and areas within the proximity of the County. (See Measure SLR-02, below.)

Timeframe: Near term/ongoing​


​​​​​​​​​​​​​​​​​​​​​​​​​​Started

The efforts for this measure have started.​

Stat​us of Implementation

The County Department of Water Resources Drainage Division continues to coordinate with various federal, state, and local agencies on floodplain mapping updates and new FEMA floodplain requirements, in addition to outreach to County residents. 

Updated 12/4/2023

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