US 60 over McMillen Wash
Gila County, Arizona · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 60 over McMillen Wash in Gila County, Arizona, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1930 and reconstructed in 1937, making it 95 years old at the 2025 inventory.
- It carries about 16,297 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 108 of the 259 inventoried bridges in Gila County rated fair (41.7%); 4 (1.5%) 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 October 2024, 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 → (33.395, -110.769)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 101 ft |
| Location | 0.2 mi W Jct US 70 |
| NBI structure number | 01028 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.
Busiest bridges in Gila County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 60 over Pinal Creek | 1920 | 22,518 | Fair |
| US 60 over Pinal Creek | 1942 | 21,948 | Fair |
| US 60 over Wash | 1949 | 16,468 | Fair |
| US 60 over Wash | 1949 | 16,468 | Fair |
| US 60 over Pinal Creek | 1959 | 16,320 | Fair |
| US 60 over Pinal Creek | 1977 | 16,297 | Fair |
All bridges nearby: Gila County, AZ bridge conditions · every bridge in Gila County · Arizona bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.