Trico-Marana Road over Santa Cruz River
Pima County, Arizona · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Trico-Marana Road over Santa Cruz River in Pima County, Arizona, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1959, making it 66 years old at the 2025 inventory.
- It carries about 2,718 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 11 of the 1,154 inventoried bridges in Pima County rated poor (1.0%); 11 (1.0%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (32.4533, -111.2802)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 4 | Poor condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 357 ft |
| Location | 4.05 mi West of Rt 84 |
| NBI structure number | 09552 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Arizona department of transportation.
Busiest bridges in Pima County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ramp to I-10 NW over I 10 Mainline | 2003 | 281,068 | Fair |
| I-10 EB & WB over Cushing Street | 2009 | 209,279 | Good |
| I-10 EB & WB over 18th Street | 2009 | 209,269 | Good |
| I-10 EB & WB over Congress Street | 2009 | 195,388 | Good |
| I-10 over St. Marys Rd | 2009 | 195,068 | Fair |
| I-10 over Speedway Blvd. | 2009 | 195,068 | Good |
All bridges nearby: Pima County, AZ bridge conditions · every bridge in Pima County · Arizona bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.