US Bridges

Smith Springs RD over Dry Hollow

FairPosted for load

Walla Walla County, Washington · 13.38 N SR 124 · Structure no. 082764000000000

Built
1932
93 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
23 ft
1 main span
Daily traffic
36
2024 count
Owner
County
County Highway Agency

About this bridge

Smith Springs RD over Dry Hollow is a concrete tee beam carrying Smith Springs RD over Dry Hollow in Walla Walla County, Washington. It was built in 1932, so it is 93 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, roughly 40% of them trucks, projected to reach 44 by 2046. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

CarriesSmith Springs RD
CrossesDry Hollow
Location13.38 N SR 124
RouteCounty Highway 94250
Coordinates46.41104, -118.33175
Functional classRural Major 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
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.7 US tons
Inventory rating19.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2024)
Projected traffic44 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith Springs RD over Dry Hollow built?

It was built in 1932, making it 93 years old in 2025.

What condition is Smith Springs RD over Dry Hollow 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 September 2024.

How much traffic does Smith Springs RD over Dry Hollow carry?

About 36 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is Smith Springs RD over Dry Hollow?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Smith Springs RD over Dry Hollow?

It is owned by the County Highway Agency.