Home > 12 > 05

Title: 12 - Roads, Parks and Waterways

Chapter: 05 - Standards for Private Rural Roads

Section: 62 - Roadway structures

A.  All driveway, road, street and private lane roadway structures shall be constructed to carry at least the maximum load and provide the minimum vertical clearance as required by Vehicle Code Sections 35550, 35750 and 35250.

B.  Appropriate signing, including but not limited to weight or vertical clearance limitation, one-way road or single lane condiĀ­tions, shall reflect the capability of each bridge or similar structure.

C.  Where a bridge or an elevated surface is part of a fire apparatus access road, the bridge shall be constructed and maintained in accordance with the American Association of State and Highway Transportation Officials Standard Specifications for Highway Bridges, 17th Edition, published 2002 (known as AASHTO HB-17), hereby incorporated by reference. Bridges and elevated surfaces shall be designed for a live load sufficient to carry the imposed loads of fire apparatus. Vehicle load limits shall be posted at both entrances to bridges when required by the local authority having jurisdiction. Where elevated surfaces designed for emergency vehicle use are adjacent to surfaces which are not designed for such use, barriers, or signs, or both, as approved by the local authority having jurisdiction, shall be installed and maintained. A bridge or similar structure with only one twelve foot wide traffic lane may be permitted by the county however, it shall provide for unobstructed visibility from one end to the other and shall also provide turnouts at both ends.

D.  All bridges and similar structures shall be founded on permanent foundations which are capable of withstanding a one-hundred year flood. The deck of the bridge shall be elevated above the one-hundred-year-flood level.

(Ord. 91-26 Ā§ 3 (part), 1991. amended by Ord. 2016-003)