US Bridges

Gallaher Road over Touchet River

Fair

Columbia County, Washington · 0.4 S JCT SR 12 · Structure no. 080583000000000

Built
1965
60 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
114 ft
2 main spans
Daily traffic
125
2019 count
Owner
County
County Highway Agency

About this bridge

Gallaher Road over Touchet River is a steel stringer/multi-beam or girder carrying Gallaher Road over Touchet River in Columbia County, Washington. It was built in 1965, so it is 60 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 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 125 vehicles a day, roughly 15% of them trucks, projected to reach 250 by 2041. The structure is 114 ft (34.7 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGallaher Road
CrossesTouchet River
Location0.4 S JCT SR 12
RouteCounty Highway 10670
CountyColumbia County
StateWashington
Coordinates46.27703, -118.11142
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
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 rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans2
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span57 ft (17.4 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2019)
Projected traffic250 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Gallaher Road over Touchet River built?

It was built in 1965, making it 60 years old in 2025.

What condition is Gallaher Road over 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 2023.

How much traffic does Gallaher Road over Touchet River carry?

About 125 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is Gallaher Road over Touchet River?

The structure is 114 ft (34.7 m) long with a longest span of 57 ft (17.4 m) and a deck 26 ft wide.

Who owns Gallaher Road over Touchet River?

It is owned by the County Highway Agency.