US Bridges

K7 HWY over Frisco Lake

Fair

Crawford County, Kansas · 7.78 MI N K47 · Structure no. 999900700190161

Built
1933
92 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,508
2023 count
Owner
State
State Highway Agency

About this bridge

K7 HWY over Frisco Lake is a concrete culvert carrying K7 HWY over Frisco Lake in Crawford County, Kansas. It was built in 1933, so it is 92 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 1,508 vehicles a day, roughly 25% of them trucks, projected to reach 1,734 by 2044. The structure is 23 ft (6.9 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesK7 HWY
CrossesFrisco Lake
Location7.78 MI N K47
RouteState Highway 7
CountyCrawford County
StateKansas
Coordinates37.62056, -94.83222
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.1 US tons
Inventory rating18 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length23 ft (6.9 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 traffic1,508 (2023)
Projected traffic1,734 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Frisco Lake built?

It was built in 1933, making it 92 years old in 2025.

What condition is K7 HWY over Frisco Lake 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 February 2024.

How much traffic does K7 HWY over Frisco Lake carry?

About 1,508 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is K7 HWY over Frisco Lake?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns K7 HWY over Frisco Lake?

It is owned by the State Highway Agency.