SH 171 over Nolan River
FairJohnson County, Texas · 2.0 MI E of FM 2331 S · Structure no. 021270036503010
- Built
- 1957
- 68 years old, rebuilt 1988
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 150 ft
- 6 main spans
- Daily traffic
- 5,940
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
SH 171 over Nolan River is a concrete continuous slab carrying SH 171 over Nolan River in Johnson County, Texas. It was built in 1957 and reconstructed in 1988, so it is 68 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 5,940 vehicles a day, roughly 14% of them trucks, projected to reach 7,720 by 2033. The structure is 150 ft (45.7 m) long and 46 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 SH 171 over Nolan River built?
It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1988.
What condition is SH 171 over Nolan 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 October 2024.
How much traffic does SH 171 over Nolan River carry?
About 5,940 vehicles per day (2019 count), of which roughly 14% are trucks.
How long is SH 171 over Nolan River?
The structure is 150 ft (45.7 m) long with a longest span of 25 ft (7.6 m) and a deck 46 ft wide.
Who owns SH 171 over Nolan River?
It is owned by the State Highway Agency.