US Bridges

US-166 HWY over Silver Creek Drainage

Good

Cowley County, Kansas · 10.65 MI E US-77 · Structure no. 999916600180851

Built
1996
29 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
1,344
2023 count
Owner
State
State Highway Agency

About this bridge

US-166 HWY over Silver Creek Drainage is a concrete culvert carrying US-166 HWY over Silver Creek Drainage in Cowley County, Kansas. It was built in 1996, so it is 29 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 1,344 vehicles a day, roughly 39% of them trucks, projected to reach 1,371 by 2044. The structure is 46 ft (14.1 m) long and 204 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-166 HWY
CrossesSilver Creek Drainage
Location10.65 MI E US-77
RouteU.S. Route 166
StateKansas
Coordinates37.0775, -96.86444
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating40.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length46 ft (14.1 m)
Longest span10 ft (3 m)
Deck width204 ft (62.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,344 (2023)
Projected traffic1,371 by 2044
Trucks39%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 US-166 HWY over Silver Creek Drainage built?

It was built in 1996, making it 29 years old in 2025.

What condition is US-166 HWY over Silver Creek Drainage 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 August 2023.

How much traffic does US-166 HWY over Silver Creek Drainage carry?

About 1,344 vehicles per day (2023 count), of which roughly 39% are trucks.

How long is US-166 HWY over Silver Creek Drainage?

The structure is 46 ft (14.1 m) long with a longest span of 10 ft (3 m) and a deck 204 ft wide.

Who owns US-166 HWY over Silver Creek Drainage?

It is owned by the State Highway Agency.