US Bridges

Old Kc Road over Marais Des Cygnes River

GoodPosted for load

Miami County, Kansas · Inside Osawatomie · Structure no. 000000000610583

Built
1949
76 years old, rebuilt 2006
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
404 ft
3 main spans
Daily traffic
2,776
2011 count
Owner
County
County Highway Agency

About this bridge

Old Kc Road over Marais Des Cygnes River is a steel continuous stringer/multi-beam or girder carrying Old Kc Road over Marais Des Cygnes River in Miami County, Kansas. It was built in 1949 and reconstructed in 2006, so it is 76 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. Its operating status is: posted for load restriction.

It carries about 2,776 vehicles a day, roughly 10% of them trucks, projected to reach 2,795 by 2043. The structure is 404 ft (123.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesOld Kc Road
CrossesMarais Des Cygnes River
LocationInside Osawatomie
RouteCounty Highway 1604
StateKansas
Coordinates38.5033, -94.95222
Functional classRural Major Collector

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 statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating17 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length404 ft (123.1 m)
Longest span160 ft (48.7 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic2,776 (2011)
Projected traffic2,795 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Kc Road over Marais Des Cygnes River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2006.

What condition is Old Kc Road over Marais Des Cygnes River 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 Old Kc Road over Marais Des Cygnes River carry?

About 2,776 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Old Kc Road over Marais Des Cygnes River?

The structure is 404 ft (123.1 m) long with a longest span of 160 ft (48.7 m) and a deck 33 ft wide.

Who owns Old Kc Road over Marais Des Cygnes River?

It is owned by the County Highway Agency.