US Bridges

Blackbob Road #6 over Indian Creek

Fair

Johnson County, Kansas · 0.2S of 127th. Street · Structure no. 521200460000006

Built
1987
38 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
23,215
2010 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blackbob Road #6 over Indian Creek is a concrete continuous slab carrying Blackbob Road #6 over Indian Creek in Johnson County, Kansas. It was built in 1987, so it is 38 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 23,215 vehicles a day, roughly 5% of them trucks, projected to reach 27,860 by 2043. The structure is 123 ft (37.4 m) long and 84 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBlackbob Road #6
CrossesIndian Creek
Location0.2S of 127th. Street
RouteCity Street 0
CountyJohnson County
StateKansas
Coordinates38.89439, -94.76103
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
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 inspectionJanuary 2025
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.4 m)
Longest span48 ft (14.6 m)
Deck width84 ft (25.5 m)
Roadway width64 ft (19.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic23,215 (2010)
Projected traffic27,860 by 2043
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Blackbob Road #6 over Indian Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Blackbob Road #6 over Indian 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 January 2025.

How much traffic does Blackbob Road #6 over Indian Creek carry?

About 23,215 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Blackbob Road #6 over Indian Creek?

The structure is 123 ft (37.4 m) long with a longest span of 48 ft (14.6 m) and a deck 84 ft wide.

Who owns Blackbob Road #6 over Indian Creek?

It is owned by the City or Municipal Highway Agency.