US Bridges

30th. Ave. over Trib. to N.Cottonwood

GoodPosted for load

McPherson County, Kansas · 3.0E 1.6S of Roxbury · Structure no. 000590817005026

Built
1989
36 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

30th. Ave. over Trib. to N.Cottonwood is a concrete culvert carrying 30th. Ave. over Trib. to N.Cottonwood in McPherson County, Kansas. It was built in 1989, so it is 36 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 6% of them trucks, projected to reach 30 by 2040. The structure is 44 ft (13.3 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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Carries30th. Ave.
CrossesTrib. to N.Cottonwood
Location3.0E 1.6S of Roxbury
RouteCounty Highway 0
CountyMcPherson County
StateKansas
Coordinates38.52825, -97.37163
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating31.3 US tons
Inventory rating18.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span14 ft (4.2 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2020)
Projected traffic30 by 2040
Trucks6%
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 30th. Ave. over Trib. to N.Cottonwood built?

It was built in 1989, making it 36 years old in 2025.

What condition is 30th. Ave. over Trib. to N.Cottonwood 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 September 2024.

How much traffic does 30th. Ave. over Trib. to N.Cottonwood carry?

About 20 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is 30th. Ave. over Trib. to N.Cottonwood?

The structure is 44 ft (13.3 m) long with a longest span of 14 ft (4.2 m) and a deck 28 ft wide.

Who owns 30th. Ave. over Trib. to N.Cottonwood?

It is owned by the County Highway Agency.