IRR BIA RTE 100 over Chamokane River
FairPosted for loadStevens County, Washington · 60 M SW Int HWY231/BIA100 · Structure no. 00000000000P204
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 64 ft
- 1 main span
- Daily traffic
- 300
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE 100 over Chamokane River is a steel stringer/multi-beam or girder carrying IRR BIA RTE 100 over Chamokane River in Stevens County, Washington. It was built in 1990, so it is 35 years old, younger than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 300 vehicles a day, roughly 15% of them trucks, projected to reach 600 by 2043. The structure is 64 ft (19.6 m) long and 24 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 100 over Chamokane River built?
It was built in 1990, making it 35 years old in 2025.
What condition is IRR BIA RTE 100 over Chamokane River 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 June 2023.
How much traffic does IRR BIA RTE 100 over Chamokane River carry?
About 300 vehicles per day (2023 count), of which roughly 15% are trucks.
How long is IRR BIA RTE 100 over Chamokane River?
The structure is 64 ft (19.6 m) long with a longest span of 64 ft (19.4 m) and a deck 24 ft wide.
Who owns IRR BIA RTE 100 over Chamokane River?
It is owned by the Bureau of Indian Affairs.