US Bridges

89th Street over Little Mill Creek

Good

Johnson County, Kansas · Betn. Greenway and Acuff · Structure no. 515700460000012

Built
2008
17 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
43 ft
2 main spans
Daily traffic
2,000
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

89th Street over Little Mill Creek is a concrete culvert carrying 89th Street over Little Mill Creek in Johnson County, Kansas. It was built in 2008, so it is 17 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 2,000 vehicles a day, roughly 1% of them trucks, projected to reach 2,200 by 2041. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Carries89th Street
CrossesLittle Mill Creek
LocationBetn. Greenway and Acuff
RouteCity Street 0
StateKansas
Coordinates38.96774, -94.75339
Functional classUrban Local

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
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 rating93.3 US tons
Inventory rating55.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,000 (2007)
Projected traffic2,200 by 2041
Trucks1%
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 89th Street over Little Mill Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is 89th Street over Little Mill Creek 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 November 2023.

How much traffic does 89th Street over Little Mill Creek carry?

About 2,000 vehicles per day (2007 count), of which roughly 1% are trucks.

How long is 89th Street over Little Mill Creek?

The structure is 43 ft (13.1 m) long with a longest span of 21 ft (6.4 m).

Who owns 89th Street over Little Mill Creek?

It is owned by the City or Municipal Highway Agency.