Geologic and Coastal Bluff Recession Assessment

Summary

This report assesses the geologic conditions and coastal bluff recession hazards at 35700 Highway 1, Big Sur, California. The study found that the property is located on a coastal terrace with sandstone bedrock and marine terrace deposits. The report concludes that the site has slow erosion rates due to the presence of hard sandstone, but future bluff recession is expected due to sea level rise. A recommended 75-year coastal bluff erosion and instability setback line is provided to ensure the stability of the site and adjacent areas.

Details

Subject

Geologic and Coastal Bluff Recession Assessment

Summary

This report assesses the geologic conditions and coastal bluff recession hazards at 35700 Highway 1, Big Sur, California. The study found that the property is located on a coastal terrace with sandstone bedrock and marine terrace deposits. The report concludes that the site has slow erosion rates due to the presence of hard sandstone, but future bluff recession is expected due to sea level rise. A recommended 75-year coastal bluff erosion and instability setback line is provided to ensure the stability of the site and adjacent areas.

Report Date

2024-07-19

Report Type

study

Report Title

Geologic and Coastal Bluff Recession Assessment Report

Authoring Body

HARO, KASUNICH & ASSOCIATES, INC.

Reporting Period

1972-2024