Old US 10 over Lower Deer Creek 006
FairSweet Grass County, Montana · 2M NW Greycliff · Structure no. L49125006+01001
- Built
- 1928
- 97 years old
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 344
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Old US 10 over Lower Deer Creek 006 is a steel stringer/multi-beam or girder carrying Old US 10 over Lower Deer Creek 006 in Sweet Grass County, Montana. It was built in 1928, so it is 97 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 344 vehicles a day, roughly 3% of them trucks, projected to reach 363 by 2043. The structure is 40 ft (12.2 m) long and 36 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old US 10 over Lower Deer Creek 006 built?
It was built in 1928, making it 97 years old in 2025.
What condition is Old US 10 over Lower Deer Creek 006 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 November 2023.
How much traffic does Old US 10 over Lower Deer Creek 006 carry?
About 344 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Old US 10 over Lower Deer Creek 006?
The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 36 ft wide.
Who owns Old US 10 over Lower Deer Creek 006?
It is owned by the State Highway Agency.