US Bridges

Tom Miller Road over Little Klickitat River

Fair

Klickitat County, Washington · 1.2 SE JCT SR 142 · Structure no. 086008000000000

Built
1992
33 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
1,026
2023 count
Owner
County
County Highway Agency

About this bridge

Tom Miller Road over Little Klickitat River is a prestressed concrete stringer/multi-beam or girder carrying Tom Miller Road over Little Klickitat River in Klickitat County, Washington. It was built in 1992, so it is 33 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 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 1,026 vehicles a day, roughly 22% of them trucks, projected to reach 1,277 by 2045. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTom Miller Road
CrossesLittle Klickitat River
Location1.2 SE JCT SR 142
RouteCounty Highway 25100
Coordinates45.81706, -120.84333
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
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating57.9 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span88 ft (26.8 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,026 (2023)
Projected traffic1,277 by 2045
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tom Miller Road over Little Klickitat River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Tom Miller 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 July 2023.

How much traffic does Tom Miller Road over Little Klickitat River carry?

About 1,026 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Tom Miller Road over Little Klickitat River?

The structure is 90 ft (27.4 m) long with a longest span of 88 ft (26.8 m) and a deck 31 ft wide.

Who owns Tom Miller Road over Little Klickitat River?

It is owned by the County Highway Agency.