US Bridges

Wildwood Road over S.Fork Chehalis River

Fair

Lewis County, Washington · 3.0 S Boistfort · Structure no. 083273000000000

Built
1955
70 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
124 ft
3 main spans
Daily traffic
284
2018 count
Owner
County
County Highway Agency

About this bridge

Wildwood Road over S.Fork Chehalis River is a concrete tee beam carrying Wildwood Road over S.Fork Chehalis River in Lewis County, Washington. It was built in 1955, so it is 70 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 5 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 284 vehicles a day, roughly 28% of them trucks, projected to reach 498 by 2038. The structure is 124 ft (37.8 m) long and 26 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesWildwood Road
CrossesS.Fork Chehalis River
Location3.0 S Boistfort
RouteCounty Highway 92004
CountyLewis County
StateWashington
Coordinates46.50573, -123.12136
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating50 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length124 ft (37.8 m)
Longest span50 ft (15.2 m)
Deck width26 ft (8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic284 (2018)
Projected traffic498 by 2038
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wildwood Road over S.Fork Chehalis River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Wildwood Road over S.Fork Chehalis River 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 Wildwood Road over S.Fork Chehalis River carry?

About 284 vehicles per day (2018 count), of which roughly 28% are trucks.

How long is Wildwood Road over S.Fork Chehalis River?

The structure is 124 ft (37.8 m) long with a longest span of 50 ft (15.2 m) and a deck 26 ft wide.

Who owns Wildwood Road over S.Fork Chehalis River?

It is owned by the County Highway Agency.