FM 770 over Daisetta Swamp
GoodLiberty County, Texas · 2.40 MI S of FM 834 · Structure no. 201460109602026
- Built
- 1970
- 55 years old
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 2,645
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
FM 770 over Daisetta Swamp is a concrete stringer/multi-beam or girder carrying FM 770 over Daisetta Swamp in Liberty County, Texas. It was built in 1970, so it is 55 years old, older 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 2,645 vehicles a day, roughly 18% of them trucks, projected to reach 3,703 by 2042. The structure is 40 ft (12.2 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM 770 over Daisetta Swamp built?
It was built in 1970, making it 55 years old in 2025.
What condition is FM 770 over Daisetta Swamp 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 May 2024.
How much traffic does FM 770 over Daisetta Swamp carry?
About 2,645 vehicles per day (2022 count), of which roughly 18% are trucks.
How long is FM 770 over Daisetta Swamp?
The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 46 ft wide.
Who owns FM 770 over Daisetta Swamp?
It is owned by the State Highway Agency.