CEDD
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Local Design Criteria

City Of Riverside - Local Design Criteria

Wind Speed

3-second peak gust wind speed per Risk Category:

 

  • 90 mph for Risk Category I

 

  • 96 mph for Risk Category II

 

  • 103 mph for Risk Category III

 

  • 107 mph for Risk Category IV

 

 

Wind Exposure

Site specific for each project (CBC 1609) - Most areas of the City of Riverside can be classified as wind exposure category C

 

 

Seismic Design – Mapped Acceleration Parameters

Site specific for each project based on latitude and longitude or project location (CBC 1613.2.1) https://earthquake.usgs.gov/hazards/

 

 

Rainfall

2 Inches per hour for roof drainage design

 

 

Conventional Construction Criteria (CBC Chapter 23, Section 2308)

Seismic Design Category D

 

 

Flood Zones

Specific areas within the City of Riverside having a flood zone designation as outlined by FEMA flood insurance maps (FIRMs) https://msc.fema.gov/portal/home

 

 

California Residential Code Chapter 3, Section R301.2.2.1

Seismic Design Category D2

 

 

Climate Zone

Zone 10

 

 

CRC Table 301.2(1)

Climatic and Geographic Design Criteria:

Termite

Very Heavy

 

 

Ground Snow Load

Zero

 

 

Ice Barrier Underlayment

N/A

 

 

Frost Line Depth

N/A

 

 

Site Class for Seismic Design

D - unless recommended otherwise by Geotechnical Engineer

 

 

Weathering

Negligible

 

 

Air Freezing Index

0

 

 

Mean Annual Temp

64.0 F

 

 

Winter Design Temp

51.4 F