US Bridges

South Avenue over Channel

Good

Lyon County, Kansas · 0.1E of South & Prairie · Structure no. 408400561102003

Built
1990
35 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
42 ft
4 main spans
Daily traffic
6,000
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Avenue over Channel is a concrete culvert carrying South Avenue over Channel in Lyon County, Kansas. It was built in 1990, so it is 35 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,000 vehicles a day, projected to reach 6,000 by 2043. The structure is 42 ft (12.8 m) long and 56 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSouth Avenue
CrossesChannel
Location0.1E of South & Prairie
RouteCity Street 1102
CountyLyon County
StateKansas
Coordinates38.39777, -96.20671
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating40.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width56 ft (17.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic6,000 (2007)
Projected traffic6,000 by 2043
Trucks0%
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

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 South Avenue over Channel built?

It was built in 1990, making it 35 years old in 2025.

What condition is South Avenue over Channel 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 February 2023.

How much traffic does South Avenue over Channel carry?

About 6,000 vehicles per day (2007 count).

How long is South Avenue over Channel?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m) and a deck 56 ft wide.

Who owns South Avenue over Channel?

It is owned by the City or Municipal Highway Agency.