US Bridges

45th over Little Slough

Good

Sedgwick County, Kansas · 45THN 0.8 E of 87THW · Structure no. 000870809906080

Built
1993
32 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
42 ft
5 main spans
Daily traffic
2,775
2022 count
Owner
County
County Highway Agency

About this bridge

45th over Little Slough is a concrete culvert carrying 45th over Little Slough in Sedgwick 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,775 vehicles a day, roughly 5% of them trucks, projected to reach 3,386 by 2044. The structure is 42 ft (12.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries45th
CrossesLittle Slough
Location45THN 0.8 E of 87THW
RouteCounty Highway 0
StateKansas
Coordinates37.76659, -97.43001
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.6 US tons
Inventory rating38.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span8 ft (2.4 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,775 (2022)
Projected traffic3,386 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 45th over Little Slough built?

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

What condition is 45th over Little Slough 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 August 2023.

How much traffic does 45th over Little Slough carry?

About 2,775 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 45th over Little Slough?

The structure is 42 ft (12.8 m) long with a longest span of 8 ft (2.4 m) and a deck 30 ft wide.

Who owns 45th over Little Slough?

It is owned by the County Highway Agency.