US Bridges

46-21.7 Minor over Trib. to Neosho River

PoorPosted for load

Neosho County, Kansas · 1.2S 6.0E of South Mound · Structure no. 000671061006547

Built
1982
43 years old
Condition
Poor
inspected November 2024
Type
Culvert
Steel
Length
43 ft
4 main spans
Daily traffic
40
2019 count
Owner
County
County Highway Agency

About this bridge

46-21.7 Minor over Trib. to Neosho River is a steel culvert carrying 46-21.7 Minor over Trib. to Neosho River in Neosho County, Kansas. It was built in 1982, so it is 43 years old, younger 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 40 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2044. The structure is 43 ft (13.1 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries46-21.7 Minor
CrossesTrib. to Neosho River
Location1.2S 6.0E of South Mound
RouteCounty Highway 6723
StateKansas
Coordinates37.41847, -95.12413
Functional classRural Minor Collector

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26 US tons
Inventory rating15.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans4
Design loadUnknown
Structure length43 ft (13.1 m)
Longest span9 ft (2.7 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2019)
Projected traffic48 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 46-21.7 Minor over Trib. to Neosho River built?

It was built in 1982, making it 43 years old in 2025.

What condition is 46-21.7 Minor over Trib. to Neosho River 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 November 2024.

How much traffic does 46-21.7 Minor over Trib. to Neosho River carry?

About 40 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is 46-21.7 Minor over Trib. to Neosho River?

The structure is 43 ft (13.1 m) long with a longest span of 9 ft (2.7 m) and a deck 32 ft wide.

Who owns 46-21.7 Minor over Trib. to Neosho River?

It is owned by the County Highway Agency.