US Bridges

Local J-6 over South Fork Nemaha River

Good

Nemaha County, Kansas · S.E. Edge of Seneca · Structure no. 000660955803242

Built
2001
24 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
184 ft
3 main spans
Daily traffic
30
2008 count
Owner
County
County Highway Agency

About this bridge

Local J-6 over South Fork Nemaha River is a concrete continuous slab carrying Local J-6 over South Fork Nemaha River in Nemaha County, Kansas. It was built in 2001, so it is 24 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 30 vehicles a day, projected to reach 30 by 2044. The structure is 184 ft (56.1 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLocal J-6
CrossesSouth Fork Nemaha River
LocationS.E. Edge of Seneca
RouteCounty Highway 0
CountyNemaha County
StateKansas
Coordinates39.82536, -96.05656
Functional classRural Local

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating90.1 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length184 ft (56.1 m)
Longest span72 ft (22 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic30 (2008)
Projected traffic30 by 2044
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$287,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Local J-6 over South Fork Nemaha River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Local J-6 over South Fork Nemaha 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 March 2024.

How much traffic does Local J-6 over South Fork Nemaha River carry?

About 30 vehicles per day (2008 count).

How long is Local J-6 over South Fork Nemaha River?

The structure is 184 ft (56.1 m) long with a longest span of 72 ft (22 m) and a deck 28 ft wide.

Who owns Local J-6 over South Fork Nemaha River?

It is owned by the County Highway Agency.