Fdr 235 over Benchmark Cr.
FairLewis and Clark County, Montana · Benchmark Cr. · Structure no. 011501000000065
- Built
- 1993
- 32 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 56 ft
- 1 main span
- Daily traffic
- 40
- Owner
- Federal
- U.S. Forest Service
About this bridge
Fdr 235 over Benchmark Cr. is a prestressed concrete stringer/multi-beam or girder carrying Fdr 235 over Benchmark Cr. in Lewis and Clark County, Montana. It was built in 1993, so it is 32 years old, younger 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 56 ft (17.1 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fdr 235 over Benchmark Cr. built?
It was built in 1993, making it 32 years old in 2025.
What condition is Fdr 235 over Benchmark Cr. 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 August 2024.
How much traffic does Fdr 235 over Benchmark Cr. carry?
About 40 vehicles per day (latest count).
How long is Fdr 235 over Benchmark Cr.?
The structure is 56 ft (17.1 m) long with a longest span of 55 ft (16.7 m) and a deck 18 ft wide.
Who owns Fdr 235 over Benchmark Cr.?
It is owned by the U.S. Forest Service.