US Bridges

K177 HWY over Cottonwood River

Good

Chase County, Kansas · .12 MI N Mn(ctnwod Fls · Structure no. 999917700090501

Built
1975
50 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
422 ft
6 main spans
Daily traffic
2,247
2023 count
Owner
State
State Highway Agency

About this bridge

K177 HWY over Cottonwood River is a prestressed concrete continuous tee beam carrying K177 HWY over Cottonwood River in Chase County, Kansas. It was built in 1975, so it is 50 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 2,247 vehicles a day, roughly 8% of them trucks, projected to reach 2,292 by 2044. The structure is 422 ft (128.5 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesK177 HWY
CrossesCottonwood River
Location.12 MI N Mn(ctnwod Fls
RouteState Highway 177
StateKansas
Coordinates38.37444, -96.53889
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating84.5 US tons
Inventory rating44.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length422 ft (128.5 m)
Longest span70 ft (21.3 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,247 (2023)
Projected traffic2,292 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 K177 HWY over Cottonwood River built?

It was built in 1975, making it 50 years old in 2025.

What condition is K177 HWY over Cottonwood River 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 October 2023.

How much traffic does K177 HWY over Cottonwood River carry?

About 2,247 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is K177 HWY over Cottonwood River?

The structure is 422 ft (128.5 m) long with a longest span of 70 ft (21.3 m) and a deck 46 ft wide.

Who owns K177 HWY over Cottonwood River?

It is owned by the State Highway Agency.