US 87 NB over Llano River
FairMason County, Texas · 1.30 MI NW of RM 783 · Structure no. 141570007104068
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 915 ft
- 11 main spans
- Daily traffic
- 1,490
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
US 87 NB over Llano River is a prestressed concrete stringer/multi-beam or girder carrying US 87 NB over Llano River in Mason County, Texas. It was built in 1972, so it is 53 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 1,490 vehicles a day, roughly 18% of them trucks, projected to reach 890 by 2033. The structure is 915 ft (278.9 m) long and 44 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| 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 US 87 NB over Llano River built?
It was built in 1972, making it 53 years old in 2025.
What condition is US 87 NB over Llano 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 June 2023.
How much traffic does US 87 NB over Llano River carry?
About 1,490 vehicles per day (2020 count), of which roughly 18% are trucks.
How long is US 87 NB over Llano River?
The structure is 915 ft (278.9 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.
Who owns US 87 NB over Llano River?
It is owned by the State Highway Agency.