US Bridges

K31 HWY over N F Little Osage Drain

Good

Anderson County, Kansas · 2.27 MI E of US-59 Sjct · Structure no. 999903100020251

Built
1932
93 years old
Condition
Good
inspected February 2024
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
980
2023 count
Owner
State
State Highway Agency

About this bridge

K31 HWY over N F Little Osage Drain is a concrete culvert carrying K31 HWY over N F Little Osage Drain in Anderson County, Kansas. It was built in 1932, so it is 93 years old, older 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 980 vehicles a day, roughly 10% of them trucks, projected to reach 1,000 by 2044. The structure is 30 ft (9 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesK31 HWY
CrossesN F Little Osage Drain
Location2.27 MI E of US-59 Sjct
RouteState Highway 31
StateKansas
Coordinates38.08139, -95.12667
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length30 ft (9 m)
Longest span8 ft (2.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic980 (2023)
Projected traffic1,000 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 K31 HWY over N F Little Osage Drain built?

It was built in 1932, making it 93 years old in 2025.

What condition is K31 HWY over N F Little Osage Drain 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 2024.

How much traffic does K31 HWY over N F Little Osage Drain carry?

About 980 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is K31 HWY over N F Little Osage Drain?

The structure is 30 ft (9 m) long with a longest span of 8 ft (2.4 m) and a deck 32 ft wide.

Who owns K31 HWY over N F Little Osage Drain?

It is owned by the State Highway Agency.