US Bridges

US54 HWY over Marmaton River

Good

Allen County, Kansas · 2.15 MI E US59 · Structure no. 999905400010141

Built
1958
67 years old
Condition
Good
inspected February 2023
Type
Slab
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
2,370
2023 count
Owner
State
State Highway Agency

About this bridge

US54 HWY over Marmaton River is a concrete continuous slab carrying US54 HWY over Marmaton River in Allen County, Kansas. It was built in 1958, so it is 67 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.

It carries about 2,370 vehicles a day, roughly 24% of them trucks, projected to reach 2,418 by 2044. The structure is 120 ft (36.5 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS54 HWY
CrossesMarmaton River
Location2.15 MI E US59
RouteU.S. Route 54
CountyAllen County
StateKansas
Coordinates37.91278, -95.13389
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.
Superstructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
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 alignment6: Equal to present minimum criteria
Operating rating74.3 US tons
Inventory rating44.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.5 m)
Longest span45 ft (13.7 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,370 (2023)
Projected traffic2,418 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
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 US54 HWY over Marmaton River built?

It was built in 1958, making it 67 years old in 2025.

What condition is US54 HWY over Marmaton 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 2023.

How much traffic does US54 HWY over Marmaton River carry?

About 2,370 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is US54 HWY over Marmaton River?

The structure is 120 ft (36.5 m) long with a longest span of 45 ft (13.7 m) and a deck 29 ft wide.

Who owns US54 HWY over Marmaton River?

It is owned by the State Highway Agency.