US Bridges

Schoonover RD over Milwaukee Coulee

Fair

Adams County, Washington · 6.90 MI N Rosenoff RD · Structure no. 082259000000000

Built
1956
69 years old, rebuilt 1973
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
33
2018 count
Owner
County
County Highway Agency

About this bridge

Schoonover RD over Milwaukee Coulee is a steel stringer/multi-beam or girder carrying Schoonover RD over Milwaukee Coulee in Adams County, Washington. It was built in 1956 and reconstructed in 1973, so it is 69 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 33 vehicles a day, roughly 9% of them trucks, projected to reach 42 by 2039. The structure is 40 ft (12.3 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSchoonover RD
CrossesMilwaukee Coulee
Location6.90 MI N Rosenoff RD
RouteCounty Highway 75191
CountyAdams County
StateWashington
Coordinates47.23251, -118.57889
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 rating31.1 US tons
Inventory rating23.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span39 ft (12 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2018)
Projected traffic42 by 2039
Trucks9%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Schoonover RD over Milwaukee Coulee built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1973.

What condition is Schoonover RD over Milwaukee 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 Schoonover RD over Milwaukee Coulee carry?

About 33 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Schoonover RD over Milwaukee Coulee?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (12 m) and a deck 26 ft wide.

Who owns Schoonover RD over Milwaukee Coulee?

It is owned by the County Highway Agency.