SH 310 SB over Trinity River
FairPosted for loadDallas County, Texas · 1.55 MI N of Lp 12 · Structure no. 180570009202061
- Built
- 1950
- 75 years old, rebuilt 1981
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 2,723 ft
- 3 main spans
- Daily traffic
- 6,599
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SH 310 SB over Trinity River is a steel continuous stringer/multi-beam or girder carrying SH 310 SB over Trinity River in Dallas County, Texas. It was built in 1950 and reconstructed in 1981, so it is 75 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. Its operating status is: posted for load restriction.
It carries about 6,599 vehicles a day, roughly 4% of them trucks, projected to reach 10,220 by 2035. The structure is 2,723 ft (830 m) long and 34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 310 SB over Trinity River built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1981.
What condition is SH 310 SB over Trinity River 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 April 2024.
How much traffic does SH 310 SB over Trinity River carry?
About 6,599 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is SH 310 SB over Trinity River?
The structure is 2,723 ft (830 m) long with a longest span of 152 ft (46.3 m) and a deck 34 ft wide.
Who owns SH 310 SB over Trinity River?
It is owned by the State Highway Agency.