US 77 SB over Roberta RD
FairCameron County, Texas · 1.20 MI SE of SH 100 · Structure no. 210310003908233
- Built
- 1990
- 35 years old, rebuilt 2007
- Condition
- Fair
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 155 ft
- 1 main span
- Daily traffic
- 30,029
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 SB over Roberta RD is a prestressed concrete stringer/multi-beam or girder carrying US 77 SB over Roberta RD in Cameron County, Texas. It was built in 1990 and reconstructed in 2007, so it is 35 years old, younger 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 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 30,029 vehicles a day, roughly 9% of them trucks, projected to reach 31,550 by 2035. The structure is 155 ft (47.2 m) long and 57 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 77 SB over Roberta RD built?
It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2007.
What condition is US 77 SB over Roberta RD 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 SB over Roberta RD carry?
About 30,029 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is US 77 SB over Roberta RD?
The structure is 155 ft (47.2 m) long with a longest span of 65 ft (19.8 m) and a deck 57 ft wide.
Who owns US 77 SB over Roberta RD?
It is owned by the State Highway Agency.