US Bridges

Wilson Road over Klickitat Creek

Fair

Lewis County, Washington · 2.0 W Mossyrock · Structure no. 081679000000000

Built
1957
68 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
24 ft
1 main span
Daily traffic
105
2022 count
Owner
County
County Highway Agency

About this bridge

Wilson Road over Klickitat Creek is a concrete stringer/multi-beam or girder carrying Wilson Road over Klickitat Creek in Lewis County, Washington. It was built in 1957, so it is 68 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 105 vehicles a day, roughly 30% of them trucks, projected to reach 190 by 2042. The structure is 24 ft (7.3 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWilson Road
CrossesKlickitat Creek
Location2.0 W Mossyrock
RouteCounty Highway 60950
CountyLewis County
StateWashington
Coordinates46.52928, -122.53274
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2022)
Projected traffic190 by 2042
Trucks30%
Lanes on structure2
Traffic directionTwo-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 relocation of road
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wilson Road over Klickitat Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Wilson Road over Klickitat Creek 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 February 2023.

How much traffic does Wilson Road over Klickitat Creek carry?

About 105 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is Wilson Road over Klickitat Creek?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 21 ft wide.

Who owns Wilson Road over Klickitat Creek?

It is owned by the County Highway Agency.