US Bridges

Olson Road over Little Klickitat River

Fair

Klickitat County, Washington · 2.0 S JCT SR142 · Structure no. 082836000000000

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
126
2023 count
Owner
County
County Highway Agency

About this bridge

Olson Road over Little Klickitat River is a prestressed concrete stringer/multi-beam or girder carrying Olson Road over Little Klickitat River in Klickitat County, Washington. It was built in 1988, so it is 37 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 126 vehicles a day, roughly 42% of them trucks, projected to reach 157 by 2045. The structure is 82 ft (25 m) long and 27 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesOlson Road
CrossesLittle Klickitat River
Location2.0 S JCT SR142
RouteCounty Highway 25230
CountyKlickitat County
StateWashington
Coordinates45.81003, -120.92583
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 stable; scour within limits of footing or piles
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 alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span80 ft (24.4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic126 (2023)
Projected traffic157 by 2045
Trucks42%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Olson Road over Little Klickitat River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Olson Road over Little Klickitat 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 Olson Road over Little Klickitat River carry?

About 126 vehicles per day (2023 count), of which roughly 42% are trucks.

How long is Olson Road over Little Klickitat River?

The structure is 82 ft (25 m) long with a longest span of 80 ft (24.4 m) and a deck 27 ft wide.

Who owns Olson Road over Little Klickitat River?

It is owned by the County Highway Agency.