Bridges and Elevated Surfaces

Sonoma County Fire Safety Ordinance, all roadway and driveway structures shall be designed, constructed, and maintained in accordance with applicable sections of the county building and fire code, the Standard Specifications for Highway Bridges, and any administrative regulations and shall have a minimum designed live-load capacity of HS -20. All roadway and driveway structures shall be constructed pursuant to a valid building permit. All roadway and driveway structures shall be inspected according to the administrative and inspection provisions of the county building code.

Chapter 5, Section 503.2.6 amended to read

Bridges and elevated surfaces

Bridges and elevated surfaces shall be designed for a live load sufficient to carry the imposed loads of fire apparatus. Where elevated surfaces designed for emergency vehicle use are adjacent to surfaces which are not designed for such use, approved barriers, approved signs or both shall be installed and maintained when required by the fire code official.

Minimum Design.

All roadway and driveway structures shall be designed, constructed, and maintained in accordance with applicable sections of the County Building Code, the Standard Specifications for Highway Bridges, and any
administrative regulations adopted pursuant to Sonoma County Code Section 13-2, and shall have a minimum designed live-load capacity of HS-20.

Chapter 5, Section 503.2.6.2 is added to read

Evaluation

All existing private bridges and elevated surfaces shall be evaluated by a California licensed civil engineer experienced in structural engineering or a California licensed structural engineer, for the purposes of safety and weight rating, and the vehicle load limits shall be posted at both entrances to bridges. Theses evaluations shall be performed at the direction of the fire code official.

Chapter 5, Section 503.2.6.2 is added to read

Certification.

All new and existing bridges and elevated structures providing emergency access shall be routinely evaluated and maintained in accordance with the American Association of State Highway and Transportation Officials (AASHTO) Manual: “The Manual for Bridge Evaluation'' Second Edition, 2011, published by the American Association of State Highway and Transportation Officials; or other approved standards.

Chapter 5, Section 503.2.6.4 is added to read

Signage

All roadway and driveway structures shall have appropriate signing identifying structure capability, vertical clearance limits,any a new road or single traffic lane conditions and include weight and/or by axle limit.

Chapter 5, Section 503.2.6.5 is added to read

Width

All roadway bridges having only one traffic lane shall be constructed to provide a minimum unobstructed width of twelve feet (12'), shall provide for unobstructed visibility from one end to the other and shall have turnouts at
both ends.

Contact Information

James Williams

Fire Marshal

Permit and Resource Management Department

County of Sonoma

Business Hours
Monday – Friday
8:00 AM – 5:00 PM
Address
2300 County Center Drive
Suite 220 B
Santa Rosa, CA 95403
38.46229, -122.725377