US Bridges

55th over Cowskin Creek

Fair

Sedgwick County, Kansas · 2.0W 1.5N of Haysville · Structure no. 000870813006305

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Slab
Concrete Continuous
Length
308 ft
6 main spans
Daily traffic
3,032
2022 count
Owner
County
County Highway Agency

About this bridge

55th over Cowskin Creek is a concrete continuous slab carrying 55th over Cowskin Creek in Sedgwick County, Kansas. It was built in 1988, so it is 37 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,032 vehicles a day, roughly 5% of them trucks, projected to reach 3,700 by 2044. The structure is 308 ft (93.9 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries55th
CrossesCowskin Creek
Location2.0W 1.5N of Haysville
RouteCounty Highway 8713
CountySedgwick County
StateKansas
Coordinates37.60033, -97.40714
Functional classRural Minor 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 protection3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.7 US tons
Inventory rating46.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length308 ft (93.9 m)
Longest span55 ft (16.7 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 traffic3,032 (2022)
Projected traffic3,700 by 2044
Trucks5%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$60,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 55th over Cowskin Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is 55th over Cowskin 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 September 2024.

How much traffic does 55th over Cowskin Creek carry?

About 3,032 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 55th over Cowskin Creek?

The structure is 308 ft (93.9 m) long with a longest span of 55 ft (16.7 m) and a deck 30 ft wide.

Who owns 55th over Cowskin Creek?

It is owned by the County Highway Agency.