US Bridges

W Boston Mills over Fly Creek

FairPosted for load

Cherokee County, Kansas · 3.5S 2.5W of Columbus · Structure no. 000111087506960

Built
1988
37 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
50
2007 count
Owner
County
County Highway Agency

About this bridge

W Boston Mills over Fly Creek is a concrete culvert carrying W Boston Mills over Fly Creek in Cherokee County, Kansas. It was built in 1988, so it is 37 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 5% of them trucks, projected to reach 60 by 2043. The structure is 32 ft (9.8 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesW Boston Mills
CrossesFly Creek
Location3.5S 2.5W of Columbus
RouteCounty Highway 0
StateKansas
Coordinates37.1195, -94.87583
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.1 US tons
Inventory rating23.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2007)
Projected traffic60 by 2043
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 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 W Boston Mills over Fly Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is W Boston Mills over Fly 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 September 2023.

How much traffic does W Boston Mills over Fly Creek carry?

About 50 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is W Boston Mills over Fly Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns W Boston Mills over Fly Creek?

It is owned by the County Highway Agency.