US Bridges

Wishkah Road over Cedar Creek

Good

Grays Harbor County, Washington · 8.4 N Wishkah School · Structure no. 088461000000000

Built
2012
13 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
106 ft
1 main span
Daily traffic
129
2022 count
Owner
County
County Highway Agency

About this bridge

Wishkah Road over Cedar Creek is a prestressed concrete tee beam carrying Wishkah Road over Cedar Creek in Grays Harbor County, Washington. It was built in 2012, so it is 13 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 129 vehicles a day, roughly 28% of them trucks, projected to reach 157 by 2044. The structure is 106 ft (32.2 m) long and 19 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWishkah Road
CrossesCedar Creek
Location8.4 N Wishkah School
RouteCounty Highway 52070
Coordinates47.21542, -123.70824
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHL 93
Structure length106 ft (32.2 m)
Longest span87 ft (26.5 m)
Deck width19 ft (5.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2022)
Projected traffic157 by 2044
Trucks28%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wishkah Road over Cedar Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Wishkah Road over Cedar Creek 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 April 2024.

How much traffic does Wishkah Road over Cedar Creek carry?

About 129 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Wishkah Road over Cedar Creek?

The structure is 106 ft (32.2 m) long with a longest span of 87 ft (26.5 m) and a deck 19 ft wide.

Who owns Wishkah Road over Cedar Creek?

It is owned by the County Highway Agency.