Kernahan RD E over Nisqually River
GoodPierce County, Washington · .85 S JCT SR 706 · Structure no. 086089000000000
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 336 ft
- 2 main spans
- Daily traffic
- 625
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Kernahan RD E over Nisqually River is a steel continuous stringer/multi-beam or girder carrying Kernahan RD E over Nisqually River in Pierce County, Washington. It was built in 1994, so it is 31 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 625 vehicles a day, roughly 5% of them trucks, projected to reach 1,000 by 2040. The structure is 336 ft (102.4 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Kernahan RD E over Nisqually River built?
It was built in 1994, making it 31 years old in 2025.
What condition is Kernahan RD E over Nisqually 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 2024.
How much traffic does Kernahan RD E over Nisqually River carry?
About 625 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Kernahan RD E over Nisqually River?
The structure is 336 ft (102.4 m) long with a longest span of 168 ft (51.2 m) and a deck 35 ft wide.
Who owns Kernahan RD E over Nisqually River?
It is owned by the County Highway Agency.