US Bridges

364th Ave SE over Raging River

Good

King County, Washington · 5.0 MI E of Issa-Ho RD · Structure no. 088831000000000

Built
2014
11 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
150
2024 count
Owner
County
County Highway Agency

About this bridge

364th Ave SE over Raging River is a concrete culvert carrying 364th Ave SE over Raging River in King County, Washington. It was built in 2014, so it is 11 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, projected to reach 175 by 2040. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 98.8 mi (159 km).

Carries364th Ave SE
CrossesRaging River
Location5.0 MI E of Issa-Ho RD
RouteCounty Highway 81540
Coordinates47.43522, -121.85403
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating67.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2024)
Projected traffic175 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$293,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 364th Ave SE over Raging River built?

It was built in 2014, making it 11 years old in 2025.

What condition is 364th Ave SE over Raging 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 March 2024.

How much traffic does 364th Ave SE over Raging River carry?

About 150 vehicles per day (2024 count).

How long is 364th Ave SE over Raging River?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m).

Who owns 364th Ave SE over Raging River?

It is owned by the County Highway Agency.