US Bridges

Luckenbill RD over Touchet River

Good

Walla Walla County, Washington · 05.560 N Sudbury RD · Structure no. 086413000000000

Built
1998
27 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
141 ft
1 main span
Daily traffic
84
2020 count
Owner
County
County Highway Agency

About this bridge

Luckenbill RD over Touchet River is a prestressed concrete stringer/multi-beam or girder carrying Luckenbill RD over Touchet River in Walla Walla County, Washington. It was built in 1998, so it is 27 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 84 vehicles a day, roughly 23% of them trucks, projected to reach 93 by 2040. The structure is 141 ft (43.1 m) long and 34 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesLuckenbill RD
CrossesTouchet River
Location05.560 N Sudbury RD
RouteCounty Highway 93570
Coordinates46.22292, -118.57689
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26.5 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length141 ft (43.1 m)
Longest span138 ft (42.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84 (2020)
Projected traffic93 by 2040
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Luckenbill RD over Touchet River built?

It was built in 1998, making it 27 years old in 2025.

What condition is Luckenbill RD 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 2023.

How much traffic does Luckenbill RD over Touchet River carry?

About 84 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is Luckenbill RD over Touchet River?

The structure is 141 ft (43.1 m) long with a longest span of 138 ft (42.1 m) and a deck 34 ft wide.

Who owns Luckenbill RD over Touchet River?

It is owned by the County Highway Agency.