US Bridges

Salmon Falls Road over Washougal River

Fair

Skamania County, Washington · 3.39 N JCT SR 14 · Structure no. 084518000000000

Built
1961
64 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
122 ft
1 main span
Daily traffic
281
2024 count
Owner
County
County Highway Agency

About this bridge

Salmon Falls Road over Washougal River is a concrete continuous box beam or girders - multiple carrying Salmon Falls Road over Washougal River in Skamania County, Washington. It was built in 1961, so it is 64 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 281 vehicles a day, roughly 12% of them trucks, projected to reach 523 by 2042. The structure is 122 ft (37.2 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSalmon Falls Road
CrossesWashougal River
Location3.39 N JCT SR 14
RouteCounty Highway 12130
CountySkamania County
StateWashington
Coordinates45.61528, -122.20222
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span89 ft (27 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic281 (2024)
Projected traffic523 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Salmon Falls Road over Washougal River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Salmon Falls Road over Washougal 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 July 2024.

How much traffic does Salmon Falls Road over Washougal River carry?

About 281 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Salmon Falls Road over Washougal River?

The structure is 122 ft (37.2 m) long with a longest span of 89 ft (27 m) and a deck 29 ft wide.

Who owns Salmon Falls Road over Washougal River?

It is owned by the County Highway Agency.