Alder Cutoff RD E over Little Mashel River
GoodPierce County, Washington · 3.2 E JCT SR 161 · Structure no. 083403000000000
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 2,725
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Alder Cutoff RD E over Little Mashel River is a prestressed concrete tee beam carrying Alder Cutoff RD E over Little Mashel River in Pierce County, Washington. It was built in 1978, so it is 47 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 2,725 vehicles a day, roughly 5% of them trucks, projected to reach 5,000 by 2040. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alder Cutoff RD E over Little Mashel River built?
It was built in 1978, making it 47 years old in 2025.
What condition is Alder Cutoff RD E over Little Mashel 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 July 2023.
How much traffic does Alder Cutoff RD E over Little Mashel River carry?
About 2,725 vehicles per day (2019 count), of which roughly 5% are trucks.
How long is Alder Cutoff RD E over Little Mashel River?
The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.
Who owns Alder Cutoff RD E over Little Mashel River?
It is owned by the County Highway Agency.