S 200 over Stockpass
PoorLewis and Clark County, Montana · 23M SW Simms · Structure no. P00024104+02001
- Built
- 1949
- 76 years old, rebuilt 1984
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 21 ft
- 1 main span
- Daily traffic
- 1,432
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 200 over Stockpass is a wood or timber stringer/multi-beam or girder carrying S 200 over Stockpass in Lewis and Clark County, Montana. It was built in 1949 and reconstructed in 1984, so it is 76 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 1,432 vehicles a day, roughly 14% of them trucks, projected to reach 1,504 by 2043. The structure is 21 ft (6.4 m) long and 30 ft wide. If it were closed, the detour would be 39.1 mi (63 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 200 over Stockpass built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1984.
What condition is S 200 over Stockpass in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does S 200 over Stockpass carry?
About 1,432 vehicles per day (2023 count), of which roughly 14% are trucks.
How long is S 200 over Stockpass?
The structure is 21 ft (6.4 m) long with a longest span of 19 ft (5.8 m) and a deck 30 ft wide.
Who owns S 200 over Stockpass?
It is owned by the State Highway Agency.