SR 537 over Milk River
FairValley County, Montana · 2M N Hinsdale · Structure no. S00537002+03001
- Built
- 1969
- 56 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 304 ft
- 3 main spans
- Daily traffic
- 123
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SR 537 over Milk River is a prestressed concrete stringer/multi-beam or girder carrying SR 537 over Milk River in Valley County, Montana. It was built in 1969, so it is 56 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 123 vehicles a day, roughly 6% of them trucks, projected to reach 129 by 2043. The structure is 304 ft (92.7 m) long and 34 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 537 over Milk River built?
It was built in 1969, making it 56 years old in 2025.
What condition is SR 537 over Milk River 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 May 2024.
How much traffic does SR 537 over Milk River carry?
About 123 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is SR 537 over Milk River?
The structure is 304 ft (92.7 m) long with a longest span of 101 ft (30.9 m) and a deck 34 ft wide.
Who owns SR 537 over Milk River?
It is owned by the State Highway Agency.