S 220 over Muddy Creek
GoodTeton County, Montana · 12M N Choteau · Structure no. S00220011+07031
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 173 ft
- 3 main spans
- Daily traffic
- 385
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 220 over Muddy Creek is a prestressed concrete stringer/multi-beam or girder carrying S 220 over Muddy Creek in Teton County, Montana. It was built in 1981, so it is 44 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 385 vehicles a day, roughly 5% of them trucks, projected to reach 404 by 2043. The structure is 173 ft (52.7 m) long and 34 ft wide. If it were closed, the detour would be 49.1 mi (79 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 | 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 220 over Muddy Creek built?
It was built in 1981, making it 44 years old in 2025.
What condition is S 220 over Muddy 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 220 over Muddy Creek carry?
About 385 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is S 220 over Muddy Creek?
The structure is 173 ft (52.7 m) long with a longest span of 61 ft (18.7 m) and a deck 34 ft wide.
Who owns S 220 over Muddy Creek?
It is owned by the State Highway Agency.