I-40 over Equipment Pass

Navajo County, Arizona · rated Good in the 2025 National Bridge Inventory

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

• I-40 over Equipment Pass in Navajo County, Arizona, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
• Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
• It was built in 1977, making it 48 years old at the 2025 inventory.
• It carries about 12,774 vehicles a day (traffic count year 2020).
• Its listed owner is the state highway agency.
• It is one of 148 of the 278 inventoried bridges in Navajo County rated good (53.2%); 6 (2.2%) 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 June 2021, on a 48-month routine inspection cycle.
• A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

View this bridge on a map → (34.90905, -110.17793)

Component ratings

Bridge details

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

Busiest bridges in Navajo County

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

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