US Bridges

Mo 6 E over Platte Rvr

Fair

Buchanan County, Missouri · S 4 T 57 N R 34 W · Structure no. 2406

Built
1986
39 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
380 ft
4 main spans
Daily traffic
2,049
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Platte Rvr is a prestressed concrete stringer/multi-beam or girder carrying Mo 6 E over Platte Rvr in Buchanan County, Missouri. It was built in 1986, so it is 39 years old, younger than the Missouri average of 45.1 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 2,049 vehicles a day, roughly 11% of them trucks, projected to reach 2,664 by 2044. The structure is 380 ft (115.8 m) long and 46 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesMo 6 E
CrossesPlatte Rvr
LocationS 4 T 57 N R 34 W
RouteState Highway 6
Coordinates39.77751, -94.72561
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating86.3 US tons
Inventory rating38.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length380 ft (115.8 m)
Longest span95 ft (29.1 m)
Deck width46 ft (13.9 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,049 (2024)
Projected traffic2,664 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

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 Mo 6 E over Platte Rvr built?

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

What condition is Mo 6 E over Platte Rvr 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 August 2024.

How much traffic does Mo 6 E over Platte Rvr carry?

About 2,049 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 6 E over Platte Rvr?

The structure is 380 ft (115.8 m) long with a longest span of 95 ft (29.1 m) and a deck 46 ft wide.

Who owns Mo 6 E over Platte Rvr?

It is owned by the State Highway Agency.