KACKMAN/4210 over Palouse River
GoodWhitman County, Washington · 2.21 MI S Lancaster · Structure no. 086056000000000
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected December 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 155 ft
- 1 main span
- Daily traffic
- 20
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
KACKMAN/4210 over Palouse River is a prestressed concrete tee beam carrying KACKMAN/4210 over Palouse River in Whitman County, Washington. It was built in 1991, so it is 34 years old, younger than the Washington average of 49.8 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 20 vehicles a day, roughly 25% of them trucks, projected to reach 22 by 2044. The structure is 155 ft (47.2 m) long and 29 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was KACKMAN/4210 over Palouse River built?
It was built in 1991, making it 34 years old in 2025.
What condition is KACKMAN/4210 over Palouse River 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 December 2023.
How much traffic does KACKMAN/4210 over Palouse River carry?
About 20 vehicles per day (2022 count), of which roughly 25% are trucks.
How long is KACKMAN/4210 over Palouse River?
The structure is 155 ft (47.2 m) long with a longest span of 153 ft (46.6 m) and a deck 29 ft wide.
Who owns KACKMAN/4210 over Palouse River?
It is owned by the County Highway Agency.