US Bridges

I-335 HWY (kta) SB over US-56 HWY

Fair

Lyon County, Kansas · JCT US-56 / Kta · Structure no. 999933500561153

Built
1956
69 years old, rebuilt 1987
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
138 ft
3 main spans
Daily traffic
5,972
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-335 HWY (kta) SB over US-56 HWY is a steel continuous stringer/multi-beam or girder carrying I-335 HWY (kta) SB over US-56 HWY in Lyon County, Kansas. It was built in 1956 and reconstructed in 1987, so it is 69 years old, older 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 5,972 vehicles a day, roughly 27% of them trucks, projected to reach 8,203 by 2044. The structure is 138 ft (42.1 m) long and 34 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesI-335 HWY (kta) SB
CrossesUS-56 HWY
LocationJCT US-56 / Kta
RouteInterstate 335
CountyLyon County
StateKansas
Coordinates38.65167, -96.02778
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.4 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length138 ft (42.1 m)
Longest span56 ft (17.1 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,972 (2023)
Projected traffic8,203 by 2044
Trucks27%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed42.3 mi (68 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 I-335 HWY (kta) SB over US-56 HWY built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1987.

What condition is I-335 HWY (kta) SB over US-56 HWY 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 June 2024.

How much traffic does I-335 HWY (kta) SB over US-56 HWY carry?

About 5,972 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is I-335 HWY (kta) SB over US-56 HWY?

The structure is 138 ft (42.1 m) long with a longest span of 56 ft (17.1 m) and a deck 34 ft wide.

Who owns I-335 HWY (kta) SB over US-56 HWY?

It is owned by the State Toll Authority.