S 551 over Arrow Creek
GoodJudith Basin County, Montana · 3M N Geyser · Structure no. S00551003+03001
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 118
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
S 551 over Arrow Creek is a prestressed concrete tee beam carrying S 551 over Arrow Creek in Judith Basin County, Montana. It was built in 2010, so it is 15 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 118 vehicles a day, roughly 17% of them trucks, projected to reach 124 by 2043. The structure is 78 ft (23.8 m) long and 26 ft wide. If it were closed, the detour would be 21.7 mi (35 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 S 551 over Arrow Creek built?
It was built in 2010, making it 15 years old in 2025.
What condition is S 551 over Arrow Creek 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 August 2024.
How much traffic does S 551 over Arrow Creek carry?
About 118 vehicles per day (2023 count), of which roughly 17% are trucks.
How long is S 551 over Arrow Creek?
The structure is 78 ft (23.8 m) long with a longest span of 78 ft (23.8 m) and a deck 26 ft wide.
Who owns S 551 over Arrow Creek?
It is owned by the County Highway Agency.