US Bridges

Local 20.0-A.6 over Chapman Creek

PoorPosted for load

Clay County, Kansas · 3.0N 1.0W of Oak Hill · Structure no. 000140817603980

Built
1965
60 years old
Condition
Poor
inspected July 2024
Type
Channel Beam
Concrete
Length
42 ft
2 main spans
Daily traffic
10
2015 count
Owner
County
County Highway Agency

About this bridge

Local 20.0-A.6 over Chapman Creek is a concrete channel beam carrying Local 20.0-A.6 over Chapman Creek in Clay County, Kansas. It was built in 1965, so it is 60 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 15 by 2042. The structure is 42 ft (12.8 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLocal 20.0-A.6
CrossesChapman Creek
Location3.0N 1.0W of Oak Hill
RouteCounty Highway 0
CountyClay County
StateKansas
Coordinates39.29185, -97.35829
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating27 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length42 ft (12.8 m)
Longest span20 ft (6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2015)
Projected traffic15 by 2042
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$310,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 20.0-A.6 over Chapman Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Local 20.0-A.6 over Chapman Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Local 20.0-A.6 over Chapman Creek carry?

About 10 vehicles per day (2015 count).

How long is Local 20.0-A.6 over Chapman Creek?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6 m) and a deck 20 ft wide.

Who owns Local 20.0-A.6 over Chapman Creek?

It is owned by the County Highway Agency.