US Bridges

K-20 171st Street over Trib. to Salt Creek

Fair

Leavenworth County, Kansas · 2.5S of Kickapoo · Structure no. 000521073003880

Built
1983
42 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
46
2024 count
Owner
County
County Highway Agency

About this bridge

K-20 171st Street over Trib. to Salt Creek is a steel stringer/multi-beam or girder carrying K-20 171st Street over Trib. to Salt Creek in Leavenworth County, Kansas. It was built in 1983, so it is 42 years old, younger 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 6 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 46 vehicles a day, roughly 16% of them trucks, projected to reach 72 by 2042. The structure is 31 ft (9.3 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesK-20 171st Street
CrossesTrib. to Salt Creek
Location2.5S of Kickapoo
RouteCounty Highway 0
StateKansas
Coordinates39.35963, -94.97374
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.2 US tons
Inventory rating38.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.3 m)
Longest span29 ft (8.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic46 (2024)
Projected traffic72 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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-20 171st Street over Trib. to Salt Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is K-20 171st Street over Trib. to Salt 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 August 2024.

How much traffic does K-20 171st Street over Trib. to Salt Creek carry?

About 46 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is K-20 171st Street over Trib. to Salt Creek?

The structure is 31 ft (9.3 m) long with a longest span of 29 ft (8.9 m) and a deck 24 ft wide.

Who owns K-20 171st Street over Trib. to Salt Creek?

It is owned by the County Highway Agency.