US Bridges

Strong Road over White Salmon River

Fair

Klickitat County, Washington · 0.8 E JCT SR141 · Structure no. 080391000000000

Built
1987
38 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
2
2023 count
Owner
County
County Highway Agency

About this bridge

Strong Road over White Salmon River is a prestressed concrete tee beam carrying Strong Road over White Salmon River in Klickitat County, Washington. It was built in 1987, so it is 38 years old, younger 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 2 vehicles a day, projected to reach 3 by 2045. The structure is 64 ft (19.5 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesStrong Road
CrossesWhite Salmon River
Location0.8 E JCT SR141
RouteCounty Highway 16800
CountyKlickitat County
StateWashington
Coordinates45.9456, -121.479
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating57.5 US tons
Inventory rating26.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span62 ft (18.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2 (2023)
Projected traffic3 by 2045
Trucks0%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of relocation of road
Estimated improvement cost$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Strong Road over White Salmon River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Strong Road over White Salmon 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 September 2024.

How much traffic does Strong Road over White Salmon River carry?

About 2 vehicles per day (2023 count).

How long is Strong Road over White Salmon River?

The structure is 64 ft (19.5 m) long with a longest span of 62 ft (18.9 m) and a deck 27 ft wide.

Who owns Strong Road over White Salmon River?

It is owned by the County Highway Agency.