US Bridges

Northstar RD over Trib. to Wilson Slough

Good

Barber County, Kansas · 2.7E 6.2S Medicine Lodge · Structure no. 000040689006867

Built
2015
10 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
32 ft
1 main span
Daily traffic
55
2018 count
Owner
County
County Highway Agency

About this bridge

Northstar RD over Trib. to Wilson Slough is a concrete stringer/multi-beam or girder carrying Northstar RD over Trib. to Wilson Slough in Barber County, Kansas. It was built in 2015, so it is 10 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 55 vehicles a day, roughly 5% of them trucks, projected to reach 65 by 2043. The structure is 32 ft (9.8 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesNorthstar RD
CrossesTrib. to Wilson Slough
Location2.7E 6.2S Medicine Lodge
RouteCounty Highway 411
StateKansas
Coordinates37.18722, -98.53144
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic55 (2018)
Projected traffic65 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Northstar RD over Trib. to Wilson Slough built?

It was built in 2015, making it 10 years old in 2025.

What condition is Northstar RD over Trib. to Wilson Slough 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 October 2023.

How much traffic does Northstar RD over Trib. to Wilson Slough carry?

About 55 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Northstar RD over Trib. to Wilson Slough?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns Northstar RD over Trib. to Wilson Slough?

It is owned by the County Highway Agency.