US Bridges

South Touchet Road over North Touchet River

Fair

Columbia County, Washington · 0.1 S JCT 9115 · Structure no. 084302000000000

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
515
2019 count
Owner
County
County Highway Agency

About this bridge

South Touchet Road over North Touchet River is a prestressed concrete tee beam carrying South Touchet Road over North Touchet River in Columbia County, Washington. It was built in 1997, so it is 28 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 515 vehicles a day, roughly 15% of them trucks, projected to reach 750 by 2041. The structure is 100 ft (30.5 m) long and 29 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesSouth Touchet Road
CrossesNorth Touchet River
Location0.1 S JCT 9115
RouteCounty Highway 13250
CountyColumbia County
StateWashington
Coordinates46.29782, -117.95327
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span99 ft (30.2 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic515 (2019)
Projected traffic750 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Touchet Road over North Touchet River built?

It was built in 1997, making it 28 years old in 2025.

What condition is South Touchet Road over North Touchet 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 October 2024.

How much traffic does South Touchet Road over North Touchet River carry?

About 515 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is South Touchet Road over North Touchet River?

The structure is 100 ft (30.5 m) long with a longest span of 99 ft (30.2 m) and a deck 29 ft wide.

Who owns South Touchet Road over North Touchet River?

It is owned by the County Highway Agency.