US Bridges

SW 80th Ave over Plum Creek

FairPosted for load

Harper County, Kansas · 0.5S 2.5W of Shook · Structure no. 000000000390070

Built
1946
79 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
82 ft
3 main spans
Daily traffic
85
2021 count
Owner
County
County Highway Agency

About this bridge

SW 80th Ave over Plum Creek is a concrete continuous slab carrying SW 80th Ave over Plum Creek in Harper County, Kansas. It was built in 1946, so it is 79 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. Its operating status is: posted for load restriction.

It carries about 85 vehicles a day, roughly 3% of them trucks, projected to reach 102 by 2043. The structure is 82 ft (25.1 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSW 80th Ave
CrossesPlum Creek
Location0.5S 2.5W of Shook
RouteCounty Highway 297
CountyHarper County
StateKansas
Coordinates37.10107, -98.18395
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating21.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length82 ft (25.1 m)
Longest span31 ft (9.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic85 (2021)
Projected traffic102 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$500,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 80th Ave over Plum Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is SW 80th Ave over Plum Creek 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 June 2023.

How much traffic does SW 80th Ave over Plum Creek carry?

About 85 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is SW 80th Ave over Plum Creek?

The structure is 82 ft (25.1 m) long with a longest span of 31 ft (9.3 m) and a deck 28 ft wide.

Who owns SW 80th Ave over Plum Creek?

It is owned by the County Highway Agency.