US Bridges

US166 HWY over Fly Creek

Fair

Cherokee County, Kansas · 3.04 MI E Labette Coln · Structure no. 999916600110311

Built
1938
87 years old, rebuilt 1965
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
253 ft
4 main spans
Daily traffic
1,960
2023 count
Owner
State
State Highway Agency

About this bridge

US166 HWY over Fly Creek is a steel continuous stringer/multi-beam or girder carrying US166 HWY over Fly Creek in Cherokee County, Kansas. It was built in 1938 and reconstructed in 1965, so it is 87 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 1,960 vehicles a day, roughly 24% of them trucks, projected to reach 2,000 by 2044. The structure is 253 ft (77.2 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUS166 HWY
CrossesFly Creek
Location3.04 MI E Labette Coln
RouteU.S. Route 166
StateKansas
Coordinates37.03194, -95.01917
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating30.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length253 ft (77.2 m)
Longest span65 ft (19.8 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,960 (2023)
Projected traffic2,000 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US166 HWY over Fly Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1965.

What condition is US166 HWY 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 March 2024.

How much traffic does US166 HWY over Fly Creek carry?

About 1,960 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US166 HWY over Fly Creek?

The structure is 253 ft (77.2 m) long with a longest span of 65 ft (19.8 m) and a deck 46 ft wide.

Who owns US166 HWY over Fly Creek?

It is owned by the State Highway Agency.