US Bridges

K31 HWY over BNSF R.R.

Good

Osage County, Kansas · 3.88 MI N Wjct I-35 · Structure no. 999903100701041

Built
1985
40 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
255 ft
4 main spans
Daily traffic
590
2023 count
Owner
State
State Highway Agency

About this bridge

K31 HWY over BNSF R.R. is a steel continuous stringer/multi-beam or girder carrying K31 HWY over BNSF R.R. in Osage 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 590 vehicles a day, roughly 7% of them trucks, projected to reach 639 by 2044. The structure is 255 ft (77.6 m) long and 38 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesK31 HWY
CrossesBNSF R.R.
Location3.88 MI N Wjct I-35
RouteState Highway 31
StateKansas
Coordinates38.50389, -95.63778
Functional classRural Major Collector

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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating68.5 US tons
Inventory rating40.9 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans4
Design loadHS 20
Structure length255 ft (77.6 m)
Longest span70 ft (21.3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2023)
Projected traffic639 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed11.2 mi (18 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 BNSF R.R. built?

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

What condition is K31 HWY over BNSF R.R. 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 May 2024.

How much traffic does K31 HWY over BNSF R.R. carry?

About 590 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is K31 HWY over BNSF R.R.?

The structure is 255 ft (77.6 m) long with a longest span of 70 ft (21.3 m) and a deck 38 ft wide.

Who owns K31 HWY over BNSF R.R.?

It is owned by the State Highway Agency.