US Bridges

K4 HWY over Rock Creek

Fair

Jefferson County, Kansas · 1.34 MI NE K245 · Structure no. 999900400440191

Built
1961
64 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete Continuous
Length
173 ft
3 main spans
Daily traffic
4,785
2023 count
Owner
State
State Highway Agency

About this bridge

K4 HWY over Rock Creek is a concrete continuous tee beam carrying K4 HWY over Rock Creek in Jefferson County, Kansas. It was built in 1961, so it is 64 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 4,785 vehicles a day, roughly 12% of them trucks, projected to reach 4,882 by 2044. The structure is 173 ft (52.6 m) long and 33 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

Open in Google Maps
CarriesK4 HWY
CrossesRock Creek
Location1.34 MI NE K245
RouteState Highway 4
CountyJefferson County
StateKansas
Coordinates39.19306, -95.55167
Functional classRural Principal Arterial - Other

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length173 ft (52.6 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,785 (2023)
Projected traffic4,882 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemYes

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 K4 HWY over Rock Creek built?

It was built in 1961, making it 64 years old in 2025.

What condition is K4 HWY 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 May 2024.

How much traffic does K4 HWY over Rock Creek carry?

About 4,785 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is K4 HWY over Rock Creek?

The structure is 173 ft (52.6 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns K4 HWY over Rock Creek?

It is owned by the State Highway Agency.