US Bridges

Central over Big Slough North

Fair

Sedgwick County, Kansas · Central @ Winterset(wb) · Structure no. 430400876400020

Built
1977
48 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
153 ft
4 main spans
Daily traffic
15,400
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

Central over Big Slough North is a concrete continuous slab carrying Central over Big Slough North in Sedgwick County, Kansas. It was built in 1977, so it is 48 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 15,400 vehicles a day, roughly 2% of them trucks, projected to reach 20,000 by 2039. The structure is 153 ft (46.6 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCentral
CrossesBig Slough North
LocationCentral @ Winterset(wb)
RouteCity Street 6400
CountySedgwick County
StateKansas
Coordinates37.69458, -97.41922
Functional classUrban Minor Arterial

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.3 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span43 ft (13.1 m)
Deck width43 ft (13.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic15,400 (2006)
Projected traffic20,000 by 2039
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Central over Big Slough North built?

It was built in 1977, making it 48 years old in 2025.

What condition is Central over Big Slough North 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 August 2023.

How much traffic does Central over Big Slough North carry?

About 15,400 vehicles per day (2006 count), of which roughly 2% are trucks.

How long is Central over Big Slough North?

The structure is 153 ft (46.6 m) long with a longest span of 43 ft (13.1 m) and a deck 43 ft wide.

Who owns Central over Big Slough North?

It is owned by the City or Municipal Highway Agency.