Old HWY 10 E over ST Regis River 059
PoorMineral County, Montana · ST Regis · Structure no. L31179013+02001
- Built
- 1937
- 88 years old, rebuilt 1986
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 195 ft
- 3 main spans
- Daily traffic
- 140
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Old HWY 10 E over ST Regis River 059 is a steel continuous stringer/multi-beam or girder carrying Old HWY 10 E over ST Regis River 059 in Mineral County, Montana. It was built in 1937 and reconstructed in 1986, so it is 88 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 140 vehicles a day, projected to reach 147 by 2043. The structure is 195 ft (59.3 m) long and 33 ft wide. If it were closed, the detour would be 16.8 mi (27 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 HWY 10 E over ST Regis River 059 built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1986.
What condition is Old HWY 10 E over ST Regis River 059 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does Old HWY 10 E over ST Regis River 059 carry?
About 140 vehicles per day (2023 count).
How long is Old HWY 10 E over ST Regis River 059?
The structure is 195 ft (59.3 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.
Who owns Old HWY 10 E over ST Regis River 059?
It is owned by the State Highway Agency.