US 77 SB over Spur 486 (williams Rd)
GoodCameron County, Texas · 1.50 MI NW of FM 2520 · Structure no. 210310003907363
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 238 ft
- 1 main span
- Daily traffic
- 29,090
- 2011 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 SB over Spur 486 (williams Rd) is a prestressed concrete stringer/multi-beam or girder carrying US 77 SB over Spur 486 (williams Rd) in Cameron County, Texas. It was built in 2005, so it is 20 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 29,090 vehicles a day, roughly 8% of them trucks, projected to reach 40,730 by 2031. The structure is 238 ft (72.5 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 Spur 486 (williams Rd) built?
It was built in 2005, making it 20 years old in 2025.
What condition is US 77 SB over Spur 486 (williams Rd) 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 February 2023.
How much traffic does US 77 SB over Spur 486 (williams Rd) carry?
About 29,090 vehicles per day (2011 count), of which roughly 8% are trucks.
How long is US 77 SB over Spur 486 (williams Rd)?
The structure is 238 ft (72.5 m) long with a longest span of 114 ft (34.7 m) and a deck 59 ft wide.
Who owns US 77 SB over Spur 486 (williams Rd)?
It is owned by the State Highway Agency.