S 13 over Horse Creek
FairMcCone County, Montana · Circle · Structure no. P00025000+00841
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 123 ft
- 3 main spans
- Daily traffic
- 910
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 13 over Horse Creek is a prestressed concrete stringer/multi-beam or girder carrying S 13 over Horse Creek in McCone County, Montana. It was built in 1988, so it is 37 years old, younger 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 6 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 910 vehicles a day, roughly 17% of them trucks, projected to reach 956 by 2043. The structure is 123 ft (37.5 m) long and 49 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 13 over Horse Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is S 13 over Horse 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 January 2025.
How much traffic does S 13 over Horse Creek carry?
About 910 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is S 13 over Horse Creek?
The structure is 123 ft (37.5 m) long with a longest span of 41 ft (12.5 m) and a deck 49 ft wide.
Who owns S 13 over Horse Creek?
It is owned by the State Highway Agency.