US Bridges

Main ST over Touchet River

Good

Walla Walla County, Washington · N Side of Town on Main ST · Structure no. 088951000000000

Built
2017
8 years old
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
129 ft
1 main span
Daily traffic
275
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main ST over Touchet River is a prestressed concrete tee beam carrying Main ST over Touchet River in Walla Walla County, Washington. It was built in 2017, so it is 8 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 275 vehicles a day, roughly 5% of them trucks, projected to reach 408 by 2046. The structure is 129 ft (39.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMain ST
CrossesTouchet River
LocationN Side of Town on Main ST
RouteCity Street 1360
Coordinates46.27228, -118.15472
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length129 ft (39.3 m)
Longest span125 ft (38.1 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic408 by 2046
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Touchet River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Main ST over Touchet River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Main ST over Touchet River carry?

About 275 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Main ST over Touchet River?

The structure is 129 ft (39.3 m) long with a longest span of 125 ft (38.1 m) and a deck 41 ft wide.

Who owns Main ST over Touchet River?

It is owned by the City or Municipal Highway Agency.