US Bridges

K9 HWY over Robidoux Creek

Poor

Marshall County, Kansas · 10.60 MI E Ejct US77 · Structure no. 999900900580251

Built
1962
63 years old
Condition
Poor
inspected August 2024
Type
Tee Beam
Concrete Continuous
Length
190 ft
3 main spans
Daily traffic
964
2023 count
Owner
State
State Highway Agency

About this bridge

K9 HWY over Robidoux Creek is a concrete continuous tee beam carrying K9 HWY over Robidoux Creek in Marshall County, Kansas. It was built in 1962, so it is 63 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 964 vehicles a day, roughly 16% of them trucks, projected to reach 1,044 by 2044. The structure is 190 ft (57.8 m) long and 33 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesK9 HWY
CrossesRobidoux Creek
Location10.60 MI E Ejct US77
RouteState Highway 9
CountyMarshall County
StateKansas
Coordinates39.69139, -96.44444
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.5 US tons
Inventory rating38.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length190 ft (57.8 m)
Longest span77 ft (23.5 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic964 (2023)
Projected traffic1,044 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

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 K9 HWY over Robidoux Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is K9 HWY over Robidoux Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does K9 HWY over Robidoux Creek carry?

About 964 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is K9 HWY over Robidoux Creek?

The structure is 190 ft (57.8 m) long with a longest span of 77 ft (23.5 m) and a deck 33 ft wide.

Who owns K9 HWY over Robidoux Creek?

It is owned by the State Highway Agency.