US 79 NB over Bu 79
FairWilliamson County, Texas · 3.45 MI E of FM 973 · Structure no. 142460032004077
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 286 ft
- 2 main spans
- Daily traffic
- 3,375
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
US 79 NB over Bu 79 is a prestressed concrete stringer/multi-beam or girder carrying US 79 NB over Bu 79 in Williamson 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 3,375 vehicles a day, roughly 31% of them trucks, projected to reach 4,050 by 2039. The structure is 286 ft (87.2 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 79 NB over Bu 79 built?
It was built in 1972, making it 53 years old in 2025.
What condition is US 79 NB over Bu 79 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 March 2023.
How much traffic does US 79 NB over Bu 79 carry?
About 3,375 vehicles per day (2019 count), of which roughly 31% are trucks.
How long is US 79 NB over Bu 79?
The structure is 286 ft (87.2 m) long with a longest span of 88 ft (26.8 m) and a deck 44 ft wide.
Who owns US 79 NB over Bu 79?
It is owned by the State Highway Agency.