US Bridges

SE 20 St. X.0-9.0 over Negro Creek

Fair

Kingman County, Kansas · 2.0S 4.0E of Kingman · Structure no. 000480743006280

Built
1986
39 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
41 ft
4 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

SE 20 St. X.0-9.0 over Negro Creek is a concrete culvert carrying SE 20 St. X.0-9.0 over Negro Creek in Kingman County, Kansas. It was built in 1986, so it is 39 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 10 vehicles a day, roughly 5% of them trucks, projected to reach 12 by 2043. The structure is 41 ft (12.6 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSE 20 St. X.0-9.0
CrossesNegro Creek
Location2.0S 4.0E of Kingman
RouteCounty Highway 0
CountyKingman County
StateKansas
Coordinates37.61864, -98.04556
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length41 ft (12.6 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic12 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SE 20 St. X.0-9.0 over Negro Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is SE 20 St. X.0-9.0 over Negro 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 January 2023.

How much traffic does SE 20 St. X.0-9.0 over Negro Creek carry?

About 10 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SE 20 St. X.0-9.0 over Negro Creek?

The structure is 41 ft (12.6 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns SE 20 St. X.0-9.0 over Negro Creek?

It is owned by the County Highway Agency.