US Bridges

U81 HWY over Cowskin Creek Drg

Good

Sedgwick County, Kansas · 0.7 MI N Su Coln · Structure no. 999908100874621

Built
2000
25 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
4,432
2023 count
Owner
State
State Highway Agency

About this bridge

U81 HWY over Cowskin Creek Drg is a concrete culvert carrying U81 HWY over Cowskin Creek Drg in Sedgwick County, Kansas. It was built in 2000, so it is 25 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,432 vehicles a day, roughly 12% of them trucks, projected to reach 5,969 by 2044. The structure is 21 ft (6.3 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesU81 HWY
CrossesCowskin Creek Drg
Location0.7 MI N Su Coln
RouteU.S. Route 81
CountySedgwick County
StateKansas
Coordinates37.48667, -97.33361
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width85 ft (26 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,432 (2023)
Projected traffic5,969 by 2044
Trucks12%
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

OwnerState Highway Agency
Maintained byState 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 U81 HWY over Cowskin Creek Drg built?

It was built in 2000, making it 25 years old in 2025.

What condition is U81 HWY over Cowskin Creek Drg in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does U81 HWY over Cowskin Creek Drg carry?

About 4,432 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is U81 HWY over Cowskin Creek Drg?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 85 ft wide.

Who owns U81 HWY over Cowskin Creek Drg?

It is owned by the State Highway Agency.