IRR I 19; SB over Santa Cruz River
FairPima County, Arizona · 6.3 MI South JCT I10 · Structure no. 01244
- Built
- 1967
- 58 years old, rebuilt 1989
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 411 ft
- 4 main spans
- Daily traffic
- 24,297
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IRR I 19; SB over Santa Cruz River is a steel continuous stringer/multi-beam or girder carrying IRR I 19; SB over Santa Cruz River in Pima County, Arizona. It was built in 1967 and reconstructed in 1989, so it is 58 years old, older than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 24,297 vehicles a day, roughly 19% of them trucks, projected to reach 24,307 by 2042. The structure is 411 ft (125.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR I 19; SB over Santa Cruz River built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1989.
What condition is IRR I 19; SB over Santa Cruz River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.
How much traffic does IRR I 19; SB over Santa Cruz River carry?
About 24,297 vehicles per day (2022 count), of which roughly 19% are trucks.
How long is IRR I 19; SB over Santa Cruz River?
The structure is 411 ft (125.3 m) long with a longest span of 114 ft (34.7 m) and a deck 45 ft wide.
Who owns IRR I 19; SB over Santa Cruz River?
It is owned by the State Highway Agency.