US Bridges

SR 23 over Dry Run

Fair

Lincoln County, Washington · 2.2 N JCT SR 231 · Structure no. 0011891A0000000

Built
1920
105 years old, rebuilt 1980
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
377
2023 count
Owner
State
State Highway Agency

About this bridge

SR 23 over Dry Run is a concrete continuous culvert carrying SR 23 over Dry Run in Lincoln County, Washington. It was built in 1920 and reconstructed in 1980, so it is 105 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.

It carries about 377 vehicles a day, roughly 18% of them trucks, projected to reach 388 by 2039. The structure is 23 ft (7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 23
CrossesDry Run
Location2.2 N JCT SR 231
RouteState Highway 23
CountyLincoln County
StateWashington
Coordinates47.33386, -118.00033
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic377 (2023)
Projected traffic388 by 2039
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$295,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 23 over Dry Run built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1980.

What condition is SR 23 over Dry Run 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 August 2024.

How much traffic does SR 23 over Dry Run carry?

About 377 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is SR 23 over Dry Run?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns SR 23 over Dry Run?

It is owned by the State Highway Agency.