US Bridges

EB K-18 over Seven Mile Overflow Chnl

Good

Riley County, Kansas · 0.27 MI NE JCT K114 & K18 · Structure no. 999901800810701

Built
2011
14 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
365 ft
4 main spans
Daily traffic
10,600
2023 count
Owner
State
State Highway Agency

About this bridge

EB K-18 over Seven Mile Overflow Chnl is a prestressed concrete continuous stringer/multi-beam or girder carrying EB K-18 over Seven Mile Overflow Chnl in Riley County, Kansas. It was built in 2011, so it is 14 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,600 vehicles a day, roughly 3% of them trucks, projected to reach 14,277 by 2044. The structure is 365 ft (111.1 m) long and 52 ft wide.

CarriesEB K-18
CrossesSeven Mile Overflow Chnl
Location0.27 MI NE JCT K114 & K18
RouteState Highway 18
StateKansas
Coordinates39.11806, -96.69194
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans4
Design loadHL 93
Structure length365 ft (111.1 m)
Longest span91 ft (27.7 m)
Deck width52 ft (15.8 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,600 (2023)
Projected traffic14,277 by 2044
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 EB K-18 over Seven Mile Overflow Chnl built?

It was built in 2011, making it 14 years old in 2025.

What condition is EB K-18 over Seven Mile Overflow Chnl 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 EB K-18 over Seven Mile Overflow Chnl carry?

About 10,600 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is EB K-18 over Seven Mile Overflow Chnl?

The structure is 365 ft (111.1 m) long with a longest span of 91 ft (27.7 m) and a deck 52 ft wide.

Who owns EB K-18 over Seven Mile Overflow Chnl?

It is owned by the State Highway Agency.