US Bridges

K18 HWY & Local RD over Kansas River Drainage

Good

Riley County, Kansas · 0.06 MI W Sjct K177 · Structure no. 999901800810331

Built
1937
88 years old, rebuilt 1995
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
2,488
2023 count
Owner
State
State Highway Agency

About this bridge

K18 HWY & Local RD over Kansas River Drainage is a concrete culvert carrying K18 HWY & Local RD over Kansas River Drainage in Riley County, Kansas. It was built in 1937 and reconstructed in 1995, so it is 88 years old, older 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 2,488 vehicles a day, roughly 4% of them trucks, projected to reach 3,418 by 2044. The structure is 35 ft (10.7 m) long and 268 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesK18 HWY & Local RD
CrossesKansas River Drainage
Location0.06 MI W Sjct K177
RouteState Highway 18
CountyRiley County
StateKansas
Coordinates39.17333, -96.545
Functional classUrban Collector

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating21.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length35 ft (10.7 m)
Longest span12 ft (3.7 m)
Deck width268 ft (81.8 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,488 (2023)
Projected traffic3,418 by 2044
Trucks4%
Lanes on structure4
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 K18 HWY & Local RD over Kansas River Drainage built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1995.

What condition is K18 HWY & Local RD over Kansas River 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 May 2023.

How much traffic does K18 HWY & Local RD over Kansas River Drainage carry?

About 2,488 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is K18 HWY & Local RD over Kansas River Drainage?

The structure is 35 ft (10.7 m) long with a longest span of 12 ft (3.7 m) and a deck 268 ft wide.

Who owns K18 HWY & Local RD over Kansas River Drainage?

It is owned by the State Highway Agency.