US Bridges

20th ST A.52-1.24 over Three Mile Creek

Fair

Leavenworth County, Kansas · 20th S of Dakota · Structure no. 415400523501925

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
5,475
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

20th ST A.52-1.24 over Three Mile Creek is a concrete continuous slab carrying 20th ST A.52-1.24 over Three Mile Creek in Leavenworth County, Kansas. It was built in 1968, so it is 57 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 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 5,475 vehicles a day, roughly 6% of them trucks, projected to reach 7,570 by 2043. The structure is 102 ft (31.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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Carries20th ST A.52-1.24
CrossesThree Mile Creek
Location20th S of Dakota
RouteCity Street 3501
CountyLeavenworth County
StateKansas
Coordinates39.32456, -94.95061
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length102 ft (31.1 m)
Longest span35 ft (10.6 m)
Deck width43 ft (13.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic5,475 (2007)
Projected traffic7,570 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 20th ST A.52-1.24 over Three Mile Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is 20th ST A.52-1.24 over Three Mile 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 May 2023.

How much traffic does 20th ST A.52-1.24 over Three Mile Creek carry?

About 5,475 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is 20th ST A.52-1.24 over Three Mile Creek?

The structure is 102 ft (31.1 m) long with a longest span of 35 ft (10.6 m) and a deck 43 ft wide.

Who owns 20th ST A.52-1.24 over Three Mile Creek?

It is owned by the City or Municipal Highway Agency.