Irr Bia Rte 58 over Salt Water Wash
Coconino County, Arizona · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irr Bia Rte 58 over Salt Water Wash in Coconino County, Arizona, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2024).
- It is one of 210 of the 406 inventoried bridges in Coconino County rated good (51.7%); 4 (1.0%) 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 December 2024, on a 24-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 → (35.71219, -110.85353)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 50 ft |
| Location | 12.4 Km West of Bia Rt #2 |
| NBI structure number | 00000000000H224 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.
Busiest bridges in Coconino County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 89A Spur over Sinclair Wash | 1967 | 33,785 | Good |
| I 17 S 89A over Wash | 1940 | 33,483 | Good |
| SB 40 over Rio De Flag | 2021 | 33,068 | Good |
| SR89A over McConnel Drive | 1967 | 32,497 | Good |
| I-17 over I40 ramp E- N | 2000 | 32,232 | Fair |
| Country Club Road over Old 66 Industrial Dr/RR | 2007 | 31,850 | Good |
All bridges nearby: Coconino County, AZ bridge conditions · every bridge in Coconino County · Arizona bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.