US Bridges

310 Rd. over Trib. to N. Cottonwood

Fair

Marion County, Kansas · 2.4N 3.2W of Durham · Structure no. 000570825405040

Built
1999
26 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

310 Rd. over Trib. to N. Cottonwood is a steel stringer/multi-beam or girder carrying 310 Rd. over Trib. to N. Cottonwood in Marion County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40 vehicles a day, roughly 5% of them trucks, projected to reach 48 by 2044. The structure is 40 ft (12.3 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries310 Rd.
CrossesTrib. to N. Cottonwood
Location2.4N 3.2W of Durham
RouteCounty Highway 0
CountyMarion County
StateKansas
Coordinates38.52219, -97.29158
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.4 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span39 ft (11.9 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2020)
Projected traffic48 by 2044
Trucks5%
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 310 Rd. over Trib. to N. Cottonwood built?

It was built in 1999, making it 26 years old in 2025.

What condition is 310 Rd. over Trib. to N. Cottonwood in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2024.

How much traffic does 310 Rd. over Trib. to N. Cottonwood carry?

About 40 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is 310 Rd. over Trib. to N. Cottonwood?

The structure is 40 ft (12.3 m) long with a longest span of 39 ft (11.9 m) and a deck 27 ft wide.

Who owns 310 Rd. over Trib. to N. Cottonwood?

It is owned by the County Highway Agency.