SR 77 over Five Mile Wash
Navajo County, Arizona · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 77 over Five Mile Wash in Navajo County, Arizona, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1938, making it 87 years old at the 2025 inventory.
- It carries about 3,375 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 124 of the 278 inventoried bridges in Navajo County rated fair (44.6%); 6 (2.2%) are rated poor.
- 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 → (34.83795, -110.14538)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 20 ft |
| Location | 22.8 mi N Jct SR 277 |
| NBI structure number | 04417 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.
Busiest bridges in Navajo County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 40 Nfr & Sfr over Wash | 1974 | 24,335 | Good |
| I 40; EB & WB over Wash | 1954 | 24,068 | Good |
| I 40; EB & WB over Wash | 1962 | 23,968 | Good |
| I 40; EB & WB over Wash | 1962 | 23,968 | Good |
| I 40; EB & WB over Wash | 1965 | 23,968 | Good |
| I 40; EB & WB over Wash | 1965 | 23,968 | Good |
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.