US Bridges

100 Ave (north) over Antelope Creek

FairPosted for load

Graham County, Kansas · 2.3N of Studley · Structure no. 000330517003843

Built
1940
85 years old, rebuilt 2013
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
38 ft
1 main span
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

100 Ave (north) over Antelope Creek is a concrete tee beam carrying 100 Ave (north) over Antelope Creek in Graham County, Kansas. It was built in 1940 and reconstructed in 2013, so it is 85 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 40 vehicles a day, projected to reach 40 by 2044. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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Carries100 Ave (north)
CrossesAntelope Creek
Location2.3N of Studley
RouteCounty Highway 0
CountyGraham County
StateKansas
Coordinates39.39014, -100.1621
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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2020)
Projected traffic40 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 100 Ave (north) over Antelope Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2013.

What condition is 100 Ave (north) over Antelope 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 May 2024.

How much traffic does 100 Ave (north) over Antelope Creek carry?

About 40 vehicles per day (2020 count).

How long is 100 Ave (north) over Antelope Creek?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 29 ft wide.

Who owns 100 Ave (north) over Antelope Creek?

It is owned by the County Highway Agency.