US Bridges

US 50 W over Maries Rvr

Good

Osage County, Missouri · S 2 T 43 N R 10 W · Structure no. 3425

Built
1984
41 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
304 ft
3 main spans
Daily traffic
3,743
2024 count
Owner
State
State Highway Agency

About this bridge

US 50 W over Maries Rvr is a steel continuous stringer/multi-beam or girder carrying US 50 W over Maries Rvr in Osage County, Missouri. It was built in 1984, so it is 41 years old, younger than the Missouri average of 45.1 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 3,743 vehicles a day, roughly 15% of them trucks, projected to reach 6,550 by 2044. The structure is 304 ft (92.7 m) long and 46 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesUS 50 W
CrossesMaries Rvr
LocationS 2 T 43 N R 10 W
RouteU.S. Route 50
Coordinates38.49439, -91.98699
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length304 ft (92.7 m)
Longest span120 ft (36.6 m)
Deck width46 ft (13.9 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,743 (2024)
Projected traffic6,550 by 2044
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 US 50 W over Maries Rvr built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 50 W over Maries Rvr 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 2025.

How much traffic does US 50 W over Maries Rvr carry?

About 3,743 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is US 50 W over Maries Rvr?

The structure is 304 ft (92.7 m) long with a longest span of 120 ft (36.6 m) and a deck 46 ft wide.

Who owns US 50 W over Maries Rvr?

It is owned by the State Highway Agency.