The following amendments to the International Wildland-Urban Interface Code are adopted:

Section 403.2.6 Bridges is amended to read as follows:

Section 403.2.6 Bridges.

Where a bridge or an elevated surface is part of an emergency response apparatus access road, the bridge or elevated surface shall be constructed and maintained in accordance with AASHTO HB-17. Bridges and elevated surfaces shall be designed for a live load sufficient to carry a minimum of 75,000 pounds of imposed loads. Vehicle load limits shall be posted at both entrances to bridges when required by the Building/Fire Official. Where elevated surfaces designed for emergency response apparatus or 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 Building/Fire Official or Fire District.

Section 403.3 Fire apparatus access road shall be in accordance with 2021 International Fire Code Section 503.2 as amended by the City of Snohomish.

Section 403.7 Grade is amended to read as follows:

Section 403.7 Grade.

The grade of the emergency response apparatus access road shall be no greater than ten percent. Grades exceeding 12 percent but no more than 15 percent shall require all buildings or structures to be provided with an automatic fire sprinkler system.