US Bridges

NW 75th Street over West Branch Walnut River

FairPosted for load

Butler County, Kansas · 3.5S of Degraff · Structure no. 000080873205845

Built
1973
52 years old
Condition
Fair
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
112 ft
1 main span
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

NW 75th Street over West Branch Walnut River is a steel girder and floorbeam system carrying NW 75th Street over West Branch Walnut River in Butler County, Kansas. It was built in 1973, so it is 52 years old, younger than the Kansas average of 52.8 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 45 vehicles a day, projected to reach 45 by 2045. The structure is 112 ft (34.1 m) long and 18 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNW 75th Street
CrossesWest Branch Walnut River
Location3.5S of Degraff
RouteCounty Highway 0
CountyButler County
StateKansas
Coordinates37.93299, -96.85479
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating12.2 US tons
Inventory rating7.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans1 (+1 approach)
Design loadUnknown
Structure length112 ft (34.1 m)
Longest span90 ft (27.4 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic45 (2023)
Projected traffic45 by 2045
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$195,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 75th Street over West Branch Walnut River built?

It was built in 1973, making it 52 years old in 2025.

What condition is NW 75th Street over West Branch Walnut River 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 January 2025.

How much traffic does NW 75th Street over West Branch Walnut River carry?

About 45 vehicles per day (2023 count).

How long is NW 75th Street over West Branch Walnut River?

The structure is 112 ft (34.1 m) long with a longest span of 90 ft (27.4 m) and a deck 18 ft wide.

Who owns NW 75th Street over West Branch Walnut River?

It is owned by the County Highway Agency.