New construction · Long Beach
Do I need a soils report for new construction in Long Beach?
A geotechnical (soils) report is effectively required for new construction in Long Beach. City of Long Beach Development Services — Building & Safety uses it to size the foundation, set drainage, and confirm compliance with California seismic provisions on the parcel.
What changes the answer in Long Beach.
Coastal alluvium with high liquefaction potential; deep foundations sometimes required. Newport-Inglewood Fault runs along the coast; liquefaction zones widespread in lowland areas.
- Coastal alluvium with high liquefaction potential; deep foundations sometimes required.
- Newport-Inglewood Fault runs along the coast; liquefaction zones widespread in lowland areas.
- FEMA SFHA in some coastal/canal areas; FIRM maps should be consulted.
Source-backed note
California Geological Survey publishes seismic-hazard and liquefaction maps; parcels inside designated zones require a site-specific geotechnical investigation under CBC §1803.
Reference: California Geological Survey — Seismic Hazard Zones — California Department of Conservation
Local authority: City of Long Beach Development Services — Building & Safety
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