US Bridges

Seneca over Cowskin Creek

Fair

Sedgwick County, Kansas · Seneca 0.6 N of 79THS · Structure no. 000870819006364

Built
1984
41 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
891
2022 count
Owner
County
County Highway Agency

About this bridge

Seneca over Cowskin Creek is a steel culvert carrying Seneca over Cowskin Creek in Sedgwick County, Kansas. It was built in 1984, so it is 41 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.

It carries about 891 vehicles a day, roughly 3% of them trucks, projected to reach 1,087 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSeneca
CrossesCowskin Creek
LocationSeneca 0.6 N of 79THS
RouteCounty Highway 0
StateKansas
Coordinates37.55849, -97.35202
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99.8 US tons
Inventory rating64.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic891 (2022)
Projected traffic1,087 by 2044
Trucks3%
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 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 Seneca over Cowskin Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Seneca 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 October 2024.

How much traffic does Seneca over Cowskin Creek carry?

About 891 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Seneca over Cowskin Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.5 m).

Who owns Seneca over Cowskin Creek?

It is owned by the County Highway Agency.