B08_Attachment_6_-__Lassen_County_Design_Criteria.pdf
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- Attached to
- ELFO LITCHFIELD MAINTENANCE SHOP NEW
- Solicitation number
- 140L1222R0010
About this file
This document provides building codes and design standards for Lassen County, California. It outlines that Lassen County enforces the 2019 versions of the California Building Code, California Residential Code, California Green Building Standards Code, California Mechanical Code, California Electrical Code, California Plumbing Code, and California Energy Code. Snow load requirements and structural design criteria are also provided, including seismic category D, allowable soil bearing pressure of 1,500 psf unless otherwise justified, and minimum footing depth of 18 inches below finished grade. Ice barrier underlayment protection is required countywide per specified codes.
The related federal contract opportunity is for the Eagle Lake Field Office Litchfield Maintenance Shop project. The solicitation number is 140L1222R0010 and is issued by the Department of the Interior Bureau of Land Management California Region. No further details are provided on required products or services, response dates, or other salient information.
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Text version
Exhibit 4
Lassen County Building Codes and Design Standards
S:\PLA\Forms\BUILDING DIVISION FORMS
Building Codes and Design Criteria
DEPARTMENT OF PLANNING AND BUILDING SERVICES
707 Nevada Street, Suite 5 · Susanville, CA 96130-3912
(530) 251-8269 · (530) 251-8373 (fax) www.co.lassen.ca.us
Effective January 1, 2020 The California Building
Standards Commission adopted the enforcement of the
2019 California Building Standards Code, Title 24 of the
California Code of Regulations.
Building Design Criteria:
Lassen County enforces the following codes:
2019 California Building Code (CBC)
2019 California Residential Code (CRC)
2019 California Green Building Standards Code
(CGBSC)
2019 California Mechanical Code (CMC)
2019 California Electrical Code (CEC)
2019 California Plumbing Code (CPC)
2019 California Energy Code
2019 California Existing Building Code
2019 California Historical Building Code
Lassen County Code is available at:
http://www.qcode.us/codes/lassencounty/
Snow Load Requirements:
Please call or email our office for ROOF* snow load requirements. (530) 251-8269 landuse@co.lassen.ca.us
Please provide the Assessor’s Parcel Number or address.
* This Department only provides roof snow load and does not provide the ground snow load. Roof snow loads can be converted to ground snow loads in accordance with ASCE 7-16 Chapter 7. On a flat roof, roof snow load may be converted to ground snow load by dividing the roof snow load by 0.7. Conversely, ground snow load may be converted to roof snow load by multiplying the ground snow load by 0.7 (again see ASCE 7-16 for specific information).
In accordance with CBC Section 2308.2.3, conventional light frame construction is prohibited in all areas of
Lassen County with a roof snow load of more than 35 lbs/sqft, and CRC section R301.2.3 requires engineering when roof snow load (flat roof) is more than 49 lbs/sqft or more.
Structural Design Criteria:
Commercial
Wind Speed: 75 mph, ASD (3 second gust)
96 mph, Ultimate
Wind Exposure Category: C (unless B can be justified by a recognized engineering study)
Seismic Category: D
Allowable Design Soil Bearing Pressure:
1,500 psf (unless justified by a geotechnical investigation report)
Footing Depth:
Minimum 18” below finished grade.
Residential
Wind Speed: 85 mph, ASD (3 second gust)
110 mph, Ultimate
Wind Exposure Category: C (unless B can be justified by a recognized engineering study)
Seismic Category: D
Allowable Design Soil Bearing Pressure:
1,500 psf (unless justified by a geotechnical investigation report)
Footing Depth:
Minimum 18” below finished grade.
Ice barrier underlayment protection (Ice Dam
Protection) is required in all areas of Lassen County.
See CRC Table R301.2 (1), CRC Section R905.1.2 and CBC Section 1507.1.2. Ice dam protection is not required for metal roofs or unconditioned spaces
(e.g. garages, and shops).
http://www.qcode.us/codes/lassencounty/ jshobe Rectangle
| EX4 Cover.pdf |
| Exhibit 4 |
| Lassen County Building Codes and |
| Design Standards |
File details come from the government source that posted it. Updated .