US Bridges

Rosenoff RD over Farrier Coulee

Fair

Adams County, Washington · 0.74 MI E Kulm Rd. · Structure no. 082574000000000

Built
1920
105 years old, rebuilt 1990
Condition
Fair
inspected November 2023
Type
Other
Concrete
Length
55 ft
1 main span
Daily traffic
207
2018 count
Owner
County
County Highway Agency

About this bridge

Rosenoff RD over Farrier Coulee is a concrete other carrying Rosenoff RD over Farrier Coulee in Adams County, Washington. It was built in 1920 and reconstructed in 1990, 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 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 207 vehicles a day, roughly 10% of them trucks, projected to reach 258 by 2039. The structure is 55 ft (16.9 m) long and 31 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesRosenoff RD
CrossesFarrier Coulee
Location0.74 MI E Kulm Rd.
RouteCounty Highway 64601
Coordinates47.12598, -118.83926
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

Structure typeOther
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length55 ft (16.9 m)
Longest span54 ft (16.5 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic207 (2018)
Projected traffic258 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$2.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rosenoff RD over Farrier Coulee built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1990.

What condition is Rosenoff RD over Farrier Coulee 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 Rosenoff RD over Farrier Coulee carry?

About 207 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Rosenoff RD over Farrier Coulee?

The structure is 55 ft (16.9 m) long with a longest span of 54 ft (16.5 m) and a deck 31 ft wide.

Who owns Rosenoff RD over Farrier Coulee?

It is owned by the County Highway Agency.