US Bridges

330 Rd. over Trib. to N. Cottonwood

GoodPosted for load

Marion County, Kansas · 4.5N 3.5W of Durham · Structure no. 000000000570600

Built
1975
50 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
315
2020 count
Owner
County
County Highway Agency

About this bridge

330 Rd. over Trib. to N. Cottonwood is a concrete culvert carrying 330 Rd. over Trib. to N. Cottonwood in Marion County, Kansas. It was built in 1975, so it is 50 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 315 vehicles a day, roughly 10% of them trucks, projected to reach 350 by 2044. The structure is 39 ft (11.9 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries330 Rd.
CrossesTrib. to N. Cottonwood
Location4.5N 3.5W of Durham
RouteCounty Highway 429
CountyMarion County
StateKansas
Coordinates38.55128, -97.28831
Functional classRural Major Collector

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 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 rating25 US tons
Inventory rating14.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length39 ft (11.9 m)
Longest span12 ft (3.6 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic315 (2020)
Projected traffic350 by 2044
Trucks10%
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 330 Rd. over Trib. to N. Cottonwood built?

It was built in 1975, making it 50 years old in 2025.

What condition is 330 Rd. 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 November 2024.

How much traffic does 330 Rd. over Trib. to N. Cottonwood carry?

About 315 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is 330 Rd. over Trib. to N. Cottonwood?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.6 m) and a deck 33 ft wide.

Who owns 330 Rd. over Trib. to N. Cottonwood?

It is owned by the County Highway Agency.