US Bridges

Benge-Washtucna RD over Cow Creek

Fair

Adams County, Washington · 11.26 MI NE SR261 · Structure no. 080980000000000

Built
1914
111 years old
Condition
Fair
inspected November 2023
Type
Other
Concrete
Length
104 ft
2 main spans
Daily traffic
50
2018 count
Owner
County
County Highway Agency

About this bridge

Benge-Washtucna RD over Cow Creek is a concrete other carrying Benge-Washtucna RD over Cow Creek in Adams County, Washington. It was built in 1914, so it is 111 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 50 vehicles a day, roughly 4% of them trucks, projected to reach 63 by 2039. The structure is 104 ft (31.8 m) long and 22 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesBenge-Washtucna RD
CrossesCow Creek
Location11.26 MI NE SR261
RouteCounty Highway 52221
Coordinates46.88434, -118.17215
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeOther
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length104 ft (31.8 m)
Longest span51 ft (15.5 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic63 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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$4.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Benge-Washtucna RD over Cow Creek built?

It was built in 1914, making it 111 years old in 2025.

What condition is Benge-Washtucna RD over Cow Creek 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 November 2023.

How much traffic does Benge-Washtucna RD over Cow Creek carry?

About 50 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Benge-Washtucna RD over Cow Creek?

The structure is 104 ft (31.8 m) long with a longest span of 51 ft (15.5 m) and a deck 22 ft wide.

Who owns Benge-Washtucna RD over Cow Creek?

It is owned by the County Highway Agency.