US 77 Nbfr over Arroyo Colorado
FairCameron County, Texas · 1.40 MI NW of FM 801 · Structure no. 210310003907045
- Built
- 1957
- 68 years old, rebuilt 2004
- Condition
- Fair
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 301 ft
- 8 main spans
- Daily traffic
- 9,768
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 Nbfr over Arroyo Colorado is a concrete stringer/multi-beam or girder carrying US 77 Nbfr over Arroyo Colorado in Cameron County, Texas. It was built in 1957 and reconstructed in 2004, so it is 68 years old, older than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 9,768 vehicles a day, roughly 3% of them trucks, projected to reach 12,640 by 2031. The structure is 301 ft (91.7 m) long and 49 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 77 Nbfr over Arroyo Colorado built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2004.
What condition is US 77 Nbfr over Arroyo Colorado 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 February 2023.
How much traffic does US 77 Nbfr over Arroyo Colorado carry?
About 9,768 vehicles per day (2024 count), of which roughly 3% are trucks.
How long is US 77 Nbfr over Arroyo Colorado?
The structure is 301 ft (91.7 m) long with a longest span of 40 ft (12.2 m) and a deck 49 ft wide.
Who owns US 77 Nbfr over Arroyo Colorado?
It is owned by the State Highway Agency.