US Bridges

18th Rd. over Cow Creek

Good

Rice County, Kansas · 3.5S 2.0E of Lyons · Structure no. 000800731005345

Built
1986
39 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
213 ft
4 main spans
Daily traffic
35
2021 count
Owner
County
County Highway Agency

About this bridge

18th Rd. over Cow Creek is a concrete continuous slab carrying 18th Rd. over Cow Creek in Rice County, Kansas. It was built in 1986, so it is 39 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 35 vehicles a day, roughly 5% of them trucks, projected to reach 40 by 2044. The structure is 213 ft (64.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries18th Rd.
CrossesCow Creek
Location3.5S 2.0E of Lyons
RouteCounty Highway 0
StateKansas
Coordinates38.29774, -98.16504
Functional classRural Local

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.7 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length213 ft (64.9 m)
Longest span60 ft (18.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2021)
Projected traffic40 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 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 18th Rd. over Cow Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is 18th Rd. over Cow Creek 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 June 2024.

How much traffic does 18th Rd. over Cow Creek carry?

About 35 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 18th Rd. over Cow Creek?

The structure is 213 ft (64.9 m) long with a longest span of 60 ft (18.2 m) and a deck 26 ft wide.

Who owns 18th Rd. over Cow Creek?

It is owned by the County Highway Agency.