US Bridges

W 56th Ave over K18 HWY

Good

Riley County, Kansas · 1.56 MI NE of K-114 · Structure no. 999901800810751

Built
2013
12 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
197 ft
2 main spans
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

W 56th Ave over K18 HWY is a prestressed concrete continuous stringer/multi-beam or girder carrying W 56th Ave over K18 HWY in Riley County, Kansas. It was built in 2013, so it is 12 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 600 vehicles a day. The structure is 197 ft (59.9 m) long and 67 ft wide.

CarriesW 56th Ave
CrossesK18 HWY
Location1.56 MI NE of K-114
RouteCounty Highway 33
StateKansas
Coordinates39.12972, -96.67333
Functional classUrban 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.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length197 ft (59.9 m)
Longest span97 ft (29.6 m)
Deck width67 ft (20.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic—
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 W 56th Ave over K18 HWY built?

It was built in 2013, making it 12 years old in 2025.

What condition is W 56th Ave over K18 HWY 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 2024.

How much traffic does W 56th Ave over K18 HWY carry?

About 600 vehicles per day (2023 count).

How long is W 56th Ave over K18 HWY?

The structure is 197 ft (59.9 m) long with a longest span of 97 ft (29.6 m) and a deck 67 ft wide.

Who owns W 56th Ave over K18 HWY?

It is owned by the State Highway Agency.