US 191 FH 42 over Spanish Creek
FairGallatin County, Montana · 7M S Gallatin Gateway · Structure no. P00050068+02171
- Built
- 1931
- 94 years old, rebuilt 1955
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Concrete
- Length
- 70 ft
- 3 main spans
- Daily traffic
- 8,952
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 191 FH 42 over Spanish Creek is a concrete tee beam carrying US 191 FH 42 over Spanish Creek in Gallatin County, Montana. It was built in 1931 and reconstructed in 1955, so it is 94 years old, older than the Montana average of 47 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.
It carries about 8,952 vehicles a day, roughly 5% of them trucks, projected to reach 10,519 by 2043. The structure is 70 ft (21.3 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 191 FH 42 over Spanish Creek built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1955.
What condition is US 191 FH 42 over Spanish Creek 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 July 2023.
How much traffic does US 191 FH 42 over Spanish Creek carry?
About 8,952 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 191 FH 42 over Spanish Creek?
The structure is 70 ft (21.3 m) long with a longest span of 30 ft (9.1 m) and a deck 33 ft wide.
Who owns US 191 FH 42 over Spanish Creek?
It is owned by the State Highway Agency.