US Bridges

N6W over Trib. to Marshall Creek

Fair

Mitchell County, Kansas · 2.2E 5.5S of Beloit · Structure no. 000620741603860

Built
1937
88 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
32 ft
3 main spans
Daily traffic
20
2002 count
Owner
County
County Highway Agency

About this bridge

N6W over Trib. to Marshall Creek is a concrete continuous slab carrying N6W over Trib. to Marshall Creek in Mitchell County, Kansas. It was built in 1937, so it is 88 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 20 vehicles a day, projected to reach 20 by 2043. The structure is 32 ft (9.7 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN6W
CrossesTrib. to Marshall Creek
Location2.2E 5.5S of Beloit
RouteCounty Highway 0
CountyMitchell County
StateKansas
Coordinates39.37889, -98.06833
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span10 ft (3.1 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2002)
Projected traffic20 by 2043
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N6W over Trib. to Marshall Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is N6W over Trib. to Marshall Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does N6W over Trib. to Marshall Creek carry?

About 20 vehicles per day (2002 count).

How long is N6W over Trib. to Marshall Creek?

The structure is 32 ft (9.7 m) long with a longest span of 10 ft (3.1 m) and a deck 21 ft wide.

Who owns N6W over Trib. to Marshall Creek?

It is owned by the County Highway Agency.