Alder Cutoff RD E over Mashel River
FairPierce County, Washington · 0.8 E JCT SR 161 · Structure no. 083271000000000
- Built
- 1937
- 88 years old
- Condition
- Fair
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 162 ft
- 3 main spans
- Daily traffic
- 2,900
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Alder Cutoff RD E over Mashel River is a concrete continuous box beam or girders - multiple carrying Alder Cutoff RD E over Mashel River in Pierce County, Washington. It was built in 1937, so it is 88 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 2,900 vehicles a day, roughly 19% of them trucks, projected to reach 4,800 by 2040. The structure is 162 ft (49.4 m) long and 22 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alder Cutoff RD E over Mashel River built?
It was built in 1937, making it 88 years old in 2025.
What condition is Alder Cutoff RD E over Mashel 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 Alder Cutoff RD E over Mashel River carry?
About 2,900 vehicles per day (2019 count), of which roughly 19% are trucks.
How long is Alder Cutoff RD E over Mashel River?
The structure is 162 ft (49.4 m) long with a longest span of 106 ft (32.3 m) and a deck 22 ft wide.
Who owns Alder Cutoff RD E over Mashel River?
It is owned by the County Highway Agency.