US Bridges

I35 HWY NB over Rock Creek

Fair

Osage County, Kansas · 0.60 MI E Ejct K31 NB · Structure no. 999903500700101

Built
1973
52 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Concrete Continuous
Length
207 ft
3 main spans
Daily traffic
6,500
2023 count
Owner
State
State Highway Agency

About this bridge

I35 HWY NB over Rock Creek is a concrete continuous tee beam carrying I35 HWY NB over Rock Creek in Osage County, Kansas. It was built in 1973, so it is 52 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 6,500 vehicles a day, roughly 35% of them trucks, projected to reach 7,623 by 2044. The structure is 207 ft (63 m) long and 42 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesI35 HWY NB
CrossesRock Creek
Location0.60 MI E Ejct K31 NB
RouteInterstate 35
CountyOsage County
StateKansas
Coordinates38.4525, -95.58944
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.5 US tons
Inventory rating48.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length207 ft (63 m)
Longest span84 ft (25.6 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2023)
Projected traffic7,623 by 2044
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I35 HWY NB over Rock Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is I35 HWY NB over Rock Creek 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 February 2024.

How much traffic does I35 HWY NB over Rock Creek carry?

About 6,500 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is I35 HWY NB over Rock Creek?

The structure is 207 ft (63 m) long with a longest span of 84 ft (25.6 m) and a deck 42 ft wide.

Who owns I35 HWY NB over Rock Creek?

It is owned by the State Highway Agency.