US Bridges

71st Street over Little Mill Creek Trib

Good

Johnson County, Kansas · 0.04E of Midland Drive · Structure no. 526350460000005

Built
1992
33 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
2,330
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

71st Street over Little Mill Creek Trib is a concrete culvert carrying 71st Street over Little Mill Creek Trib in Johnson County, Kansas. It was built in 1992, so it is 33 years old, younger than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,330 vehicles a day, roughly 3% of them trucks, projected to reach 2,800 by 2044. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Carries71st Street
CrossesLittle Mill Creek Trib
Location0.04E of Midland Drive
RouteCity Street 0
StateKansas
Coordinates39.00021, -94.75442
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length31 ft (9.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,330 (2017)
Projected traffic2,800 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 71st Street over Little Mill Creek Trib built?

It was built in 1992, making it 33 years old in 2025.

What condition is 71st Street over Little Mill Creek Trib in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does 71st Street over Little Mill Creek Trib carry?

About 2,330 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is 71st Street over Little Mill Creek Trib?

The structure is 31 ft (9.5 m) long with a longest span of 10 ft (3 m).

Who owns 71st Street over Little Mill Creek Trib?

It is owned by the City or Municipal Highway Agency.