US Bridges

20th Road over Mule Creek

FairPosted for load

Comanche County, Kansas · 0.5E of Wilmore · Structure no. 000000000170450

Built
1993
32 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
131 ft
3 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

20th Road over Mule Creek is a concrete continuous slab carrying 20th Road over Mule Creek in Comanche County, Kansas. It was built in 1993, so it is 32 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 50 by 2044. The structure is 131 ft (39.8 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries20th Road
CrossesMule Creek
Location0.5E of Wilmore
RouteCounty Highway 1737
CountyComanche County
StateKansas
Coordinates37.33175, -99.20139
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating40.1 US tons
Inventory rating24 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length131 ft (39.8 m)
Longest span52 ft (15.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2021)
Projected traffic50 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 20th Road over Mule Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is 20th Road over Mule 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 December 2024.

How much traffic does 20th Road over Mule Creek carry?

About 30 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is 20th Road over Mule Creek?

The structure is 131 ft (39.8 m) long with a longest span of 52 ft (15.7 m) and a deck 30 ft wide.

Who owns 20th Road over Mule Creek?

It is owned by the County Highway Agency.