US Bridges

SW 80th Road over Trib. to Salty Creek

FairPosted for load

Harper County, Kansas · 3.5S 1.3W of Corwin · Structure no. 000000000390330

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

SW 80th Road over Trib. to Salty Creek is a concrete culvert carrying SW 80th Road over Trib. to Salty Creek in Harper County, Kansas. It was built in 1940, so it is 85 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 50 vehicles a day, roughly 3% of them trucks, projected to reach 130 by 2043. The structure is 21 ft (6.3 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSW 80th Road
CrossesTrib. to Salty Creek
Location3.5S 1.3W of Corwin
RouteCounty Highway 977
CountyHarper County
StateKansas
Coordinates37.03608, -98.33436
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 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; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20 US tons
Inventory rating20 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (2.9 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic50 (2021)
Projected traffic130 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 80th Road over Trib. to Salty Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is SW 80th Road over Trib. to Salty 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 Road over Trib. to Salty Creek carry?

About 50 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is SW 80th Road over Trib. to Salty Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (2.9 m) and a deck 34 ft wide.

Who owns SW 80th Road over Trib. to Salty Creek?

It is owned by the County Highway Agency.