US Bridges

K61 HWY NB over RS0305 Rt US81 Alt

Fair

McPherson County, Kansas · JCT US-81 ALT/K-61 NB · Structure no. 999906100591031

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
2,770
2023 count
Owner
State
State Highway Agency

About this bridge

K61 HWY NB over RS0305 Rt US81 Alt is a steel continuous stringer/multi-beam or girder carrying K61 HWY NB over RS0305 Rt US81 Alt in McPherson County, Kansas. It was built in 1969, so it is 56 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,770 vehicles a day, roughly 15% of them trucks, projected to reach 5,003 by 2044. The structure is 151 ft (45.9 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesK61 HWY NB
CrossesRS0305 Rt US81 Alt
LocationJCT US-81 ALT/K-61 NB
RouteState Highway 61
CountyMcPherson County
StateKansas
Coordinates38.335, -97.66694
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length151 ft (45.9 m)
Longest span56 ft (17.2 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,770 (2023)
Projected traffic5,003 by 2044
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 K61 HWY NB over RS0305 Rt US81 Alt built?

It was built in 1969, making it 56 years old in 2025.

What condition is K61 HWY NB over RS0305 Rt US81 Alt in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does K61 HWY NB over RS0305 Rt US81 Alt carry?

About 2,770 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is K61 HWY NB over RS0305 Rt US81 Alt?

The structure is 151 ft (45.9 m) long with a longest span of 56 ft (17.2 m) and a deck 42 ft wide.

Who owns K61 HWY NB over RS0305 Rt US81 Alt?

It is owned by the State Highway Agency.