Old HWY 312 over Five Mile Creek 183
GoodYellowstone County, Montana · 3M NE Billings · Structure no. L56788004+03001
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 11,260
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Old HWY 312 over Five Mile Creek 183 is a prestressed concrete stringer/multi-beam or girder carrying Old HWY 312 over Five Mile Creek 183 in Yellowstone County, Montana. It was built in 2005, so it is 20 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,260 vehicles a day, roughly 1% of them trucks, projected to reach 11,823 by 2043. The structure is 75 ft (23 m) long and 63 ft wide. If it were closed, the detour would be 13 mi (21 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Old HWY 312 over Five Mile Creek 183 built?
It was built in 2005, making it 20 years old in 2025.
What condition is Old HWY 312 over Five Mile Creek 183 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does Old HWY 312 over Five Mile Creek 183 carry?
About 11,260 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Old HWY 312 over Five Mile Creek 183?
The structure is 75 ft (23 m) long with a longest span of 75 ft (23 m) and a deck 63 ft wide.
Who owns Old HWY 312 over Five Mile Creek 183?
It is owned by the State Highway Agency.