US Bridges

I-35 HWY SB (kta) over Ninnescah River Drainage

Good

Sumner County, Kansas · 1.53 MI N K-55 · Structure no. 999903500960343

Built
1956
69 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
102 ft
3 main spans
Daily traffic
11,227
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-35 HWY SB (kta) over Ninnescah River Drainage is a steel continuous stringer/multi-beam or girder carrying I-35 HWY SB (kta) over Ninnescah River Drainage in Sumner County, Kansas. It was built in 1956, 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 11,227 vehicles a day, roughly 28% of them trucks, projected to reach 14,252 by 2044. The structure is 102 ft (31.1 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 SB (kta)
CrossesNinnescah River Drainage
Location1.53 MI N K-55
RouteInterstate 35
CountySumner County
StateKansas
Coordinates37.41361, -97.32139
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating63.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length102 ft (31.1 m)
Longest span37 ft (11.3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,227 (2023)
Projected traffic14,252 by 2044
Trucks28%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 SB (kta) over Ninnescah River Drainage built?

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

What condition is I-35 HWY SB (kta) over Ninnescah River Drainage 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 SB (kta) over Ninnescah River Drainage carry?

About 11,227 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is I-35 HWY SB (kta) over Ninnescah River Drainage?

The structure is 102 ft (31.1 m) long with a longest span of 37 ft (11.3 m) and a deck 34 ft wide.

Who owns I-35 HWY SB (kta) over Ninnescah River Drainage?

It is owned by the State Toll Authority.