US Bridges

K3 HWY over S Fk Marmaton River

Fair

Bourbon County, Kansas · 1.58 MI N Crawford Coln · Structure no. 999900300060241

Built
1940
85 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Concrete
Length
97 ft
3 main spans
Daily traffic
441
2023 count
Owner
State
State Highway Agency

About this bridge

K3 HWY over S Fk Marmaton River is a concrete tee beam carrying K3 HWY over S Fk Marmaton River in Bourbon County, Kansas. It was built in 1940, so it is 85 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 5 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 441 vehicles a day, roughly 16% of them trucks, projected to reach 517 by 2044. The structure is 97 ft (29.7 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesK3 HWY
CrossesS Fk Marmaton River
Location1.58 MI N Crawford Coln
RouteState Highway 3
CountyBourbon County
StateKansas
Coordinates37.69778, -94.96972
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating47.4 US tons
Inventory rating28.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length97 ft (29.7 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic441 (2023)
Projected traffic517 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 K3 HWY over S Fk Marmaton River built?

It was built in 1940, making it 85 years old in 2025.

What condition is K3 HWY over S Fk Marmaton River 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 2023.

How much traffic does K3 HWY over S Fk Marmaton River carry?

About 441 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is K3 HWY over S Fk Marmaton River?

The structure is 97 ft (29.7 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns K3 HWY over S Fk Marmaton River?

It is owned by the State Highway Agency.