US 77 SB over N Floodway
FairCameron County, Texas · 5.20 MI NW of FM 508 · Structure no. 210310032708029
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected February 2023
- Type
- Slab
- Concrete Continuous
- Length
- 2,645 ft
- 105 main spans
- Daily traffic
- 12,122
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 SB over N Floodway is a concrete continuous slab carrying US 77 SB over N Floodway in Cameron County, Texas. It was built in 1974, so it is 51 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 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 12,122 vehicles a day, roughly 23% of them trucks, projected to reach 12,280 by 2031. The structure is 2,645 ft (806.2 m) long and 44 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 | 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 US 77 SB over N Floodway built?
It was built in 1974, making it 51 years old in 2025.
What condition is US 77 SB over N Floodway 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 N Floodway carry?
About 12,122 vehicles per day (2023 count), of which roughly 23% are trucks.
How long is US 77 SB over N Floodway?
The structure is 2,645 ft (806.2 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.
Who owns US 77 SB over N Floodway?
It is owned by the State Highway Agency.