US Bridges

Smpwy WB over I-435 HWY Nb-Sb

Fair

Johnson County, Kansas · JCT I435 & 65th ST · Structure no. 999943500462111

Built
1979
46 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
370 ft
4 main spans
Daily traffic
14,142
2023 count
Owner
State
State Highway Agency

About this bridge

Smpwy WB over I-435 HWY Nb-Sb is a steel continuous stringer/multi-beam or girder carrying Smpwy WB over I-435 HWY Nb-Sb in Johnson County, Kansas. It was built in 1979, so it is 46 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 14,142 vehicles a day, projected to reach 22,286 by 2044. The structure is 370 ft (112.8 m) long and 51 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSmpwy WB
CrossesI-435 HWY Nb-Sb
LocationJCT I435 & 65th ST
RouteCity Street 2724
CountyJohnson County
StateKansas
Coordinates39.01056, -94.785
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.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating70.9 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length370 ft (112.8 m)
Longest span122 ft (37.2 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,142 (2023)
Projected traffic22,286 by 2044
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 Smpwy WB over I-435 HWY Nb-Sb built?

It was built in 1979, making it 46 years old in 2025.

What condition is Smpwy WB over I-435 HWY Nb-Sb 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 Smpwy WB over I-435 HWY Nb-Sb carry?

About 14,142 vehicles per day (2023 count).

How long is Smpwy WB over I-435 HWY Nb-Sb?

The structure is 370 ft (112.8 m) long with a longest span of 122 ft (37.2 m) and a deck 51 ft wide.

Who owns Smpwy WB over I-435 HWY Nb-Sb?

It is owned by the State Highway Agency.