US Bridges

Chisolm Trail Rd. over Trib. S. Cottonwood Riv.

FairPosted for load

Marion County, Kansas · 5.5W 0.5S of Hillsboro · Structure no. 000570823005301

Built
1940
85 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
35
2020 count
Owner
County
County Highway Agency

About this bridge

Chisolm Trail Rd. over Trib. S. Cottonwood Riv. is a steel stringer/multi-beam or girder carrying Chisolm Trail Rd. over Trib. S. Cottonwood Riv. in Marion County, Kansas. It was built in 1940, so it is 85 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 5% of them trucks, projected to reach 42 by 2044. The structure is 36 ft (11 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesChisolm Trail Rd.
CrossesTrib. S. Cottonwood Riv.
Location5.5W 0.5S of Hillsboro
RouteCounty Highway 0
CountyMarion County
StateKansas
Coordinates38.33269, -97.31647
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.1 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span35 ft (10.6 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2020)
Projected traffic42 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-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 Chisolm Trail Rd. over Trib. S. Cottonwood Riv. built?

It was built in 1940, making it 85 years old in 2025.

What condition is Chisolm Trail Rd. over Trib. S. Cottonwood Riv. 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 December 2024.

How much traffic does Chisolm Trail Rd. over Trib. S. Cottonwood Riv. carry?

About 35 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Chisolm Trail Rd. over Trib. S. Cottonwood Riv.?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.6 m) and a deck 21 ft wide.

Who owns Chisolm Trail Rd. over Trib. S. Cottonwood Riv.?

It is owned by the County Highway Agency.