US Bridges

NW 30th ST over W. Br. Whitewater River

FairPosted for load

Butler County, Kansas · 5.0N 1.0W of Benton · Structure no. 000000000080560

Built
1954
71 years old, rebuilt 2016
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
256 ft
5 main spans
Daily traffic
345
2021 count
Owner
County
County Highway Agency

About this bridge

NW 30th ST over W. Br. Whitewater River is a steel continuous stringer/multi-beam or girder carrying NW 30th ST over W. Br. Whitewater River in Butler County, Kansas. It was built in 1954 and reconstructed in 2016, so it is 71 years old, older 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 345 vehicles a day, roughly 1% of them trucks, projected to reach 500 by 2045. The structure is 256 ft (78 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNW 30th ST
CrossesW. Br. Whitewater River
Location5.0N 1.0W of Benton
RouteCounty Highway 85
CountyButler County
StateKansas
Coordinates37.86889, -97.12572
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18.7 US tons
Inventory rating11.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length256 ft (78 m)
Longest span55 ft (16.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic345 (2021)
Projected traffic500 by 2045
Trucks1%
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$960,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NW 30th ST over W. Br. Whitewater River built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2016.

What condition is NW 30th ST over W. Br. Whitewater 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 July 2024.

How much traffic does NW 30th ST over W. Br. Whitewater River carry?

About 345 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is NW 30th ST over W. Br. Whitewater River?

The structure is 256 ft (78 m) long with a longest span of 55 ft (16.7 m) and a deck 26 ft wide.

Who owns NW 30th ST over W. Br. Whitewater River?

It is owned by the County Highway Agency.