External tool only
Coastal Resilience Evaluation and Siting Tool (CREST)
National Fish and Wildlife Federation, with partners · released ≈18, exact date unverified
Built to help practitioners screen and site nature-based shoreline projects — living shorelines, marsh restoration, dune enhancement — against sea-level-rise and flood exposure. External tool only: its underlying federal hazard inputs are public domain, but the Resilience Hub composite output is NFWF/NEMAC’s own derived work with no stated license.
General Information
- URL
- Link unverified
- Geographic scope within coastal California
- California coast
- Tool release year and updates
- ≈18, exact date unverified
Projected Flood Information
- Annual flood risk
- No
- Annual flood risk (various return periods)
- No
- Base flood elevation
- No
- Coastal groundwater flooding
- No
- Erosion projections
- No
- FEMA flood zones
- No
- High tide flooding thresholds (minor/moderate/major)
- No
- King tide
- No
- Mapping uncertainty / confidence layers
- No
- Marsh migration space
- Yes
- Near-100-year storm scenario
- No
- Shoreline erosion
- No
- Storm surge / extreme tide
- No
- Stormwater / compound flooding
- No
- Wave run-up
- No
Shoreline Processes
- Coastal flood thresholds
- No
- Coastal groundwater
- No
- Compound flooding with stormwater runoff
- No
- Dynamic hydrodynamic modeling
- No
- Erosion / shoreline change
- Yes
- Habitat-based risk reduction
- No
- High tide flooding
- No
- Hurricane storm surge
- No
- King tide
- No
- Levee overtopping
- No
- Marsh migration
- No
- Marsh migration / habitat change
- Yes
- Regulatory base flood elevation
- No
- Riverine and coastal flood zones
- No
- SLR inundation
- Yes
- Shoreline erosion
- No
- Shoreline overtopping
- No
- Storm surge / extreme tide
- No
- Tide-gauge monitoring
- No
- Wave run-up
- No
Exposure Analysis Provided on Flooding Impacts to Assets
- Critical facilities
- No
- Economic / property value
- No
- Infrastructure & buildings
- No
- Natural resources / habitats
- Yes
- Population / demographics
- No
Data, Reports, and Summary Information Available
- Reports, summary info, or other analyses available for download
- Site-suitability screening outputs for nature-based adaptation projects.
General Information Regarding Sea Level Rise Model
- Base sea level rise model
- Built on state SLR guidance scenarios; exact model not independently confirmed.
Strengths and Limitations
- Top 3 strengths
- Focused specifically on nature-based / green-infrastructure siting, a gap in most other tools
- Brings habitat and marsh-migration data into flood planning
- Aimed directly at practitioners, not just the public
- Top 3 limitations
- Narrower audience than general-purpose viewers
- No stable current link could be confirmed
- Less suited to general public education