US Bridges

K7 HWY over Coon Creek

Fair

Doniphan County, Kansas · 2.44 M NW US-36/K-7 JCT · Structure no. 999900700220051

Built
1937
88 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
641
2023 count
Owner
State
State Highway Agency

About this bridge

K7 HWY over Coon Creek is a concrete culvert carrying K7 HWY over Coon Creek in Doniphan County, Kansas. It was built in 1937, so it is 88 years old, older 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 641 vehicles a day, roughly 24% of them trucks, projected to reach 1,135 by 2044. The structure is 45 ft (13.6 m) long and 34 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesK7 HWY
CrossesCoon Creek
Location2.44 M NW US-36/K-7 JCT
RouteState Highway 7
CountyDoniphan County
StateKansas
Coordinates39.82472, -95.15222
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating31.1 US tons
Inventory rating18 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length45 ft (13.6 m)
Longest span10 ft (3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic641 (2023)
Projected traffic1,135 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 K7 HWY over Coon Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is K7 HWY over Coon Creek 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 June 2023.

How much traffic does K7 HWY over Coon Creek carry?

About 641 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is K7 HWY over Coon Creek?

The structure is 45 ft (13.6 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns K7 HWY over Coon Creek?

It is owned by the State Highway Agency.