Williamson Vly Rd over Williamson Valley Wash

Yavapai County, Arizona · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

• Williamson Vly Rd over Williamson Valley Wash in Yavapai County, Arizona, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
• It was built in 1939, making it 86 years old at the 2025 inventory.
• It carries about 160 vehicles a day (traffic count year 2023).
• Its listed owner is the county highway agency.
• It is one of 198 of the 543 inventoried bridges in Yavapai County rated fair (36.5%); 2 (0.4%) are rated poor.
• Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
• Its condition class and component ratings are unchanged from the 2024 inventory.
• Its most recent inspection on record is dated July 2023, on a 24-month routine inspection cycle.
• A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

View this bridge on a map → (34.81798, -112.63218)

Component ratings

Bridge details

Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.

Busiest bridges in Yavapai County

All bridges nearby: Yavapai County, AZ bridge conditions · every bridge in Yavapai County · Arizona bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.