US 87 over Elk Creek
FairFergus County, Montana · 5M SE Grass Range · Structure no. P00061038+04561
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 57 ft
- 3 main spans
- Daily traffic
- 930
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 87 over Elk Creek is a wood or timber stringer/multi-beam or girder carrying US 87 over Elk Creek in Fergus County, Montana. It was built in 1952, so it is 73 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 930 vehicles a day, roughly 11% of them trucks, projected to reach 977 by 2043. The structure is 57 ft (17.5 m) long and 32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 87 over Elk Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is US 87 over Elk 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 October 2024.
How much traffic does US 87 over Elk Creek carry?
About 930 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is US 87 over Elk Creek?
The structure is 57 ft (17.5 m) long with a longest span of 19 ft (5.8 m) and a deck 32 ft wide.
Who owns US 87 over Elk Creek?
It is owned by the State Highway Agency.