US Bridges

Rs 296 (nw 100 Ave over West Branch Bluff Creek

FairPosted for load

Harper County, Kansas · 0.5N of Attica · Structure no. 000000000390040

Built
1935
90 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
249 ft
9 main spans
Daily traffic
310
2021 count
Owner
County
County Highway Agency

About this bridge

Rs 296 (nw 100 Ave over West Branch Bluff Creek is a concrete tee beam carrying Rs 296 (nw 100 Ave over West Branch Bluff Creek in Harper County, Kansas. It was built in 1935, so it is 90 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 5 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 310 vehicles a day, roughly 3% of them trucks, projected to reach 341 by 2043. The structure is 249 ft (76 m) long and 22 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRs 296 (nw 100 Ave
CrossesWest Branch Bluff Creek
Location0.5N of Attica
RouteCounty Highway 296
CountyHarper County
StateKansas
Coordinates37.25064, -98.22049
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadUnknown
Structure length249 ft (76 m)
Longest span27 ft (8.3 m)
Deck width22 ft (6.7 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic310 (2021)
Projected traffic341 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$579,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 296 (nw 100 Ave over West Branch Bluff Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Rs 296 (nw 100 Ave over West Branch Bluff 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 February 2023.

How much traffic does Rs 296 (nw 100 Ave over West Branch Bluff Creek carry?

About 310 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Rs 296 (nw 100 Ave over West Branch Bluff Creek?

The structure is 249 ft (76 m) long with a longest span of 27 ft (8.3 m) and a deck 22 ft wide.

Who owns Rs 296 (nw 100 Ave over West Branch Bluff Creek?

It is owned by the County Highway Agency.