US Bridges

US-69 Highway SB over Little Osage River

Good

Bourbon County, Kansas · 1.09 Mi. N. of K-31 · Structure no. 999906900060631

Built
1985
40 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
371 ft
5 main spans
Daily traffic
2,801
2023 count
Owner
State
State Highway Agency

About this bridge

US-69 Highway SB over Little Osage River is a prestressed concrete continuous stringer/multi-beam or girder carrying US-69 Highway SB over Little Osage River in Bourbon County, Kansas. It was built in 1985, so it is 40 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 2,801 vehicles a day, roughly 24% of them trucks, projected to reach 3,848 by 2044. The structure is 371 ft (113.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS-69 Highway SB
CrossesLittle Osage River
Location1.09 Mi. N. of K-31
RouteU.S. Route 69
StateKansas
Coordinates38.00972, -94.70389
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans5
Design loadHS 20
Structure length371 ft (113.2 m)
Longest span88 ft (26.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,801 (2023)
Projected traffic3,848 by 2044
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 US-69 Highway SB over Little Osage River built?

It was built in 1985, making it 40 years old in 2025.

What condition is US-69 Highway SB over Little Osage 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 February 2023.

How much traffic does US-69 Highway SB over Little Osage River carry?

About 2,801 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US-69 Highway SB over Little Osage River?

The structure is 371 ft (113.2 m) long with a longest span of 88 ft (26.8 m) and a deck 43 ft wide.

Who owns US-69 Highway SB over Little Osage River?

It is owned by the State Highway Agency.