US Bridges

Escure Ranch over Rock Creek

FairPosted for load

Whitman County, Washington · 7.5 Miles S of Lamont on · Structure no. 0000000L1439393

Built
1950
75 years old, rebuilt 2003
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
218 ft
1 main span
Daily traffic
1
2021 count
Owner
Federal
Bureau of Land Management

About this bridge

Escure Ranch over Rock Creek is a steel truss - thru carrying Escure Ranch over Rock Creek in Whitman County, Washington. It was built in 1950 and reconstructed in 2003, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 1 vehicles a day, roughly 1% of them trucks, projected to reach 3 by 2041. The structure is 218 ft (66.4 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesEscure Ranch
CrossesRock Creek
Location7.5 Miles S of Lamont on
RouteFederal Lands Road 0
CountyWhitman County
StateWashington
Coordinates47.01401, -117.9444
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1 (+6 approach)
Design loadHS 20
Structure length218 ft (66.4 m)
Longest span65 ft (19.8 m)
Deck width14 ft (4.3 m)
Roadway width12 ft (3.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1 (2021)
Projected traffic3 by 2041
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$7,000 (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Escure Ranch over Rock Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2003.

What condition is Escure Ranch over Rock 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 April 2023.

How much traffic does Escure Ranch over Rock Creek carry?

About 1 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Escure Ranch over Rock Creek?

The structure is 218 ft (66.4 m) long with a longest span of 65 ft (19.8 m) and a deck 14 ft wide.

Who owns Escure Ranch over Rock Creek?

It is owned by the Bureau of Land Management.