US 77 SB over SH 100
GoodCameron County, Texas · 2.70 MI SE of FM 732 · Structure no. 210310003908388
- Built
- 2006
- 19 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 258 ft
- 1 main span
- Daily traffic
- 30,029
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 SB over SH 100 is a prestressed concrete stringer/multi-beam or girder carrying US 77 SB over SH 100 in Cameron County, Texas. It was built in 2006, so it is 19 years old, younger than the Texas average of 44.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 30,029 vehicles a day, roughly 8% of them trucks, projected to reach 35,250 by 2031. The structure is 258 ft (78.6 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 SH 100 built?
It was built in 2006, making it 19 years old in 2025.
What condition is US 77 SB over SH 100 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.
How much traffic does US 77 SB over SH 100 carry?
About 30,029 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is US 77 SB over SH 100?
The structure is 258 ft (78.6 m) long with a longest span of 124 ft (37.8 m) and a deck 59 ft wide.
Who owns US 77 SB over SH 100?
It is owned by the State Highway Agency.