US Bridges

US-69 HWY SB over Marias Des Cygnes River

Good

Linn County, Kansas · .88 MI S K-52 N JCT · Structure no. 999906900540581

Built
2007
18 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
432 ft
3 main spans
Daily traffic
3,063
2023 count
Owner
State
State Highway Agency

About this bridge

US-69 HWY SB over Marias Des Cygnes River is a steel continuous stringer/multi-beam or girder carrying US-69 HWY SB over Marias Des Cygnes River in Linn County, Kansas. It was built in 2007, so it is 18 years old, younger 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.

It carries about 3,063 vehicles a day, roughly 24% of them trucks, projected to reach 4,463 by 2044. The structure is 432 ft (131.6 m) long and 42 ft wide.

CarriesUS-69 HWY SB
CrossesMarias Des Cygnes River
Location.88 MI S K-52 N JCT
RouteU.S. Route 69
StateKansas
Coordinates38.24889, -94.68639
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

MaterialSteel Continuous
DeckNot applicable
Main spans3
Design loadHL 93
Structure length432 ft (131.6 m)
Longest span164 ft (50 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,063 (2023)
Projected traffic4,463 by 2044
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
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 US-69 HWY SB over Marias Des Cygnes River built?

It was built in 2007, making it 18 years old in 2025.

What condition is US-69 HWY SB over Marias 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 February 2024.

How much traffic does US-69 HWY SB over Marias Des Cygnes River carry?

About 3,063 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US-69 HWY SB over Marias Des Cygnes River?

The structure is 432 ft (131.6 m) long with a longest span of 164 ft (50 m) and a deck 42 ft wide.

Who owns US-69 HWY SB over Marias Des Cygnes River?

It is owned by the State Highway Agency.