US Bridges

I-35 HWY NB (kta) over Rock Road

Good

Sedgwick County, Kansas · 4.22 MI NE K-15 · Structure no. 999903500872553

Built
1956
69 years old, rebuilt 1981
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
149 ft
3 main spans
Daily traffic
8,227
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-35 HWY NB (kta) over Rock Road is a steel continuous stringer/multi-beam or girder carrying I-35 HWY NB (kta) over Rock Road in Sedgwick County, Kansas. It was built in 1956 and reconstructed in 1981, 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 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 8,227 vehicles a day, roughly 23% of them trucks, projected to reach 10,652 by 2044. The structure is 149 ft (45.3 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-35 HWY NB (kta)
CrossesRock Road
Location4.22 MI NE K-15
RouteInterstate 35
CountySedgwick County
StateKansas
Coordinates37.66917, -97.24417
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.1 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length149 ft (45.3 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,227 (2023)
Projected traffic10,652 by 2044
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn an Interstate toll segment under Secretarial agreement
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-35 HWY NB (kta) over Rock Road built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1981.

What condition is I-35 HWY NB (kta) over Rock Road 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 2023.

How much traffic does I-35 HWY NB (kta) over Rock Road carry?

About 8,227 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I-35 HWY NB (kta) over Rock Road?

The structure is 149 ft (45.3 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns I-35 HWY NB (kta) over Rock Road?

It is owned by the State Toll Authority.