US Bridges

K-15 Highway over North Cottonwood River

Good

Marion County, Kansas · 7.65 MI N US-56 JCT · Structure no. 999901500570661

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
409 ft
4 main spans
Daily traffic
1,292
2023 count
Owner
State
State Highway Agency

About this bridge

K-15 Highway over North Cottonwood River is a steel continuous stringer/multi-beam or girder carrying K-15 Highway over North Cottonwood River in Marion County, Kansas. It was built in 2003, so it is 22 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 1,292 vehicles a day, roughly 20% of them trucks, projected to reach 1,318 by 2044. The structure is 409 ft (124.7 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesK-15 Highway
CrossesNorth Cottonwood River
Location7.65 MI N US-56 JCT
RouteState Highway 15
StateKansas
Coordinates38.47333, -97.22444
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating52 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length409 ft (124.7 m)
Longest span115 ft (35 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,292 (2023)
Projected traffic1,318 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 K-15 Highway over North Cottonwood River built?

It was built in 2003, making it 22 years old in 2025.

What condition is K-15 Highway over North Cottonwood River 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 October 2023.

How much traffic does K-15 Highway over North Cottonwood River carry?

About 1,292 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is K-15 Highway over North Cottonwood River?

The structure is 409 ft (124.7 m) long with a longest span of 115 ft (35 m) and a deck 42 ft wide.

Who owns K-15 Highway over North Cottonwood River?

It is owned by the State Highway Agency.