US Bridges

K65 HWY over Little Osage River

Fair

Bourbon County, Kansas · 5.75 MI E K3 · Structure no. 999906500060461

Built
1962
63 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete Continuous
Length
266 ft
4 main spans
Daily traffic
139
2023 count
Owner
State
State Highway Agency

About this bridge

K65 HWY over Little Osage River is a concrete continuous tee beam carrying K65 HWY over Little Osage River in Bourbon County, Kansas. It was built in 1962, so it is 63 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 139 vehicles a day, roughly 9% of them trucks, projected to reach 148 by 2044. The structure is 266 ft (81.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesK65 HWY
CrossesLittle Osage River
Location5.75 MI E K3
RouteState Highway 65
StateKansas
Coordinates37.99361, -94.95583
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length266 ft (81.2 m)
Longest span77 ft (23.5 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic139 (2023)
Projected traffic148 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 K65 HWY over Little Osage River built?

It was built in 1962, making it 63 years old in 2025.

What condition is K65 HWY over Little Osage River 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 2023.

How much traffic does K65 HWY over Little Osage River carry?

About 139 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is K65 HWY over Little Osage River?

The structure is 266 ft (81.2 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.

Who owns K65 HWY over Little Osage River?

It is owned by the State Highway Agency.