Dam Access Road over Weyerhaeuser CO Haul RD
FairKing County, Washington · Mud Mountain Dam Wa · Structure no. CEPNWSWA1PBMM01
- Built
- 1960
- 65 years old, rebuilt 1995
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 182 ft
- 3 main spans
- Daily traffic
- 75
- 2017 count
- Owner
- Federal
- Corps of Engineers (Civil)
About this bridge
Dam Access Road over Weyerhaeuser CO Haul RD is a prestressed concrete stringer/multi-beam or girder carrying Dam Access Road over Weyerhaeuser CO Haul RD in King County, Washington. It was built in 1960 and reconstructed in 1995, so it is 65 years old, older 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 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 75 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2041. The structure is 182 ft (55.4 m) long and 27 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dam Access Road over Weyerhaeuser CO Haul RD built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1995.
What condition is Dam Access Road over Weyerhaeuser CO Haul RD 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 July 2024.
How much traffic does Dam Access Road over Weyerhaeuser CO Haul RD carry?
About 75 vehicles per day (2017 count), of which roughly 10% are trucks.
How long is Dam Access Road over Weyerhaeuser CO Haul RD?
The structure is 182 ft (55.4 m) long with a longest span of 61 ft (18.5 m) and a deck 27 ft wide.
Who owns Dam Access Road over Weyerhaeuser CO Haul RD?
It is owned by the Corps of Engineers (Civil).