Hesper RD over Big Ditch 113
FairYellowstone County, Montana · 5M NE Laurel · Structure no. L56526004+03001
- Built
- 1938
- 87 years old, rebuilt 1973
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 24 ft
- 1 main span
- Daily traffic
- 522
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Hesper RD over Big Ditch 113 is a steel stringer/multi-beam or girder carrying Hesper RD over Big Ditch 113 in Yellowstone County, Montana. It was built in 1938 and reconstructed in 1973, so it is 87 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 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 522 vehicles a day, roughly 2% of them trucks, projected to reach 613 by 2043. The structure is 24 ft (7.3 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 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 Hesper RD over Big Ditch 113 built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1973.
What condition is Hesper RD over Big Ditch 113 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 December 2024.
How much traffic does Hesper RD over Big Ditch 113 carry?
About 522 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Hesper RD over Big Ditch 113?
The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 36 ft wide.
Who owns Hesper RD over Big Ditch 113?
It is owned by the County Highway Agency.