US Bridges

K-18 / K-177 HWY over Kans R & UPRR & Riley ST

Good

Riley County, Kansas · 0.90 MI SE 2nd St. (mnht) · Structure no. 999901800810501

Built
1996
29 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,388 ft
10 main spans
Daily traffic
6,094
2023 count
Owner
State
State Highway Agency

About this bridge

K-18 / K-177 HWY over Kans R & UPRR & Riley ST is a steel continuous stringer/multi-beam or girder carrying K-18 / K-177 HWY over Kans R & UPRR & Riley ST in Riley County, Kansas. It was built in 1996, so it is 29 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 6,094 vehicles a day, roughly 7% of them trucks, projected to reach 7,736 by 2044. The structure is 1,388 ft (423.2 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesK-18 / K-177 HWY
CrossesKans R & UPRR & Riley ST
Location0.90 MI SE 2nd St. (mnht)
RouteState Highway 18
CountyRiley County
StateKansas
Coordinates39.17444, -96.55417
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.3 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckNot applicable
Main spans10
Design loadHS 25 or greater
Structure length1,388 ft (423.2 m)
Longest span175 ft (53.3 m)
Deck width70 ft (21.4 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,094 (2023)
Projected traffic7,736 by 2044
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed1.2 mi (2 km)
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 K-18 / K-177 HWY over Kans R & UPRR & Riley ST built?

It was built in 1996, making it 29 years old in 2025.

What condition is K-18 / K-177 HWY over Kans R & UPRR & Riley ST 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 K-18 / K-177 HWY over Kans R & UPRR & Riley ST carry?

About 6,094 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is K-18 / K-177 HWY over Kans R & UPRR & Riley ST?

The structure is 1,388 ft (423.2 m) long with a longest span of 175 ft (53.3 m) and a deck 70 ft wide.

Who owns K-18 / K-177 HWY over Kans R & UPRR & Riley ST?

It is owned by the State Highway Agency.