US Bridges

NB K-7 HWY over Johnson DR/55th ST

Good

Johnson County, Kansas · K-7 & Johnson DR/55th ST · Structure no. 999900700463511

Built
2010
15 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
352 ft
2 main spans
Daily traffic
11,239
2023 count
Owner
State
State Highway Agency

About this bridge

NB K-7 HWY over Johnson DR/55th ST is a steel continuous stringer/multi-beam or girder carrying NB K-7 HWY over Johnson DR/55th ST in Johnson County, Kansas. It was built in 2010, so it is 15 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 11,239 vehicles a day, roughly 10% of them trucks, projected to reach 12,667 by 2044. The structure is 352 ft (107.4 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesNB K-7 HWY
CrossesJohnson DR/55th ST
LocationK-7 & Johnson DR/55th ST
RouteState Highway 7
CountyJohnson County
StateKansas
Coordinates39.02889, -94.85222
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length352 ft (107.4 m)
Longest span175 ft (53.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,239 (2023)
Projected traffic12,667 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NB K-7 HWY over Johnson DR/55th ST built?

It was built in 2010, making it 15 years old in 2025.

What condition is NB K-7 HWY over Johnson DR/55th ST 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 July 2024.

How much traffic does NB K-7 HWY over Johnson DR/55th ST carry?

About 11,239 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NB K-7 HWY over Johnson DR/55th ST?

The structure is 352 ft (107.4 m) long with a longest span of 175 ft (53.3 m) and a deck 43 ft wide.

Who owns NB K-7 HWY over Johnson DR/55th ST?

It is owned by the State Highway Agency.