US Bridges

Old US59 US50 Bs over Marais Des Cygnes River

Fair

Franklin County, Kansas · 0.51 MI N 5th St-Ottawa · Structure no. 999905900300881

Built
1986
39 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
311 ft
3 main spans
Daily traffic
1,350
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old US59 US50 Bs over Marais Des Cygnes River is a steel continuous stringer/multi-beam or girder carrying Old US59 US50 Bs over Marais Des Cygnes River in Franklin County, Kansas. It was built in 1986, so it is 39 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 1,350 vehicles a day, roughly 11% of them trucks, projected to reach 1,620 by 2044. The structure is 311 ft (94.7 m) long and 60 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesOld US59 US50 Bs
CrossesMarais Des Cygnes River
Location0.51 MI N 5th St-Ottawa
RouteCounty Highway 59
CountyFranklin County
StateKansas
Coordinates38.61849, -95.26857
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionMay 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating42.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length311 ft (94.7 m)
Longest span136 ft (41.4 m)
Deck width60 ft (18.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,350 (2014)
Projected traffic1,620 by 2044
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$450,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old US59 US50 Bs over Marais Des Cygnes River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Old US59 US50 Bs over Marais Des Cygnes 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 May 2024.

How much traffic does Old US59 US50 Bs over Marais Des Cygnes River carry?

About 1,350 vehicles per day (2014 count), of which roughly 11% are trucks.

How long is Old US59 US50 Bs over Marais Des Cygnes River?

The structure is 311 ft (94.7 m) long with a longest span of 136 ft (41.4 m) and a deck 60 ft wide.

Who owns Old US59 US50 Bs over Marais Des Cygnes River?

It is owned by the City or Municipal Highway Agency.