US Bridges

Mo 6 E over US 24

Poor

Marion County, Missouri · S 11 T 59 N R 6 W · Structure no. 1821

Built
1968
57 years old, rebuilt 2024
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
2 main spans
Daily traffic
3,910
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over US 24 is a steel continuous stringer/multi-beam or girder carrying Mo 6 E over US 24 in Marion County, Missouri. It was built in 1968 and reconstructed in 2024, so it is 57 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,910 vehicles a day, roughly 10% of them trucks, projected to reach 7,429 by 2044. The structure is 245 ft (74.8 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesMo 6 E
CrossesUS 24
LocationS 11 T 59 N R 6 W
RouteState Highway 6
Coordinates39.91749, -91.52416
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50.6 US tons
Inventory rating30.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length245 ft (74.8 m)
Longest span86 ft (26.2 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,910 (2024)
Projected traffic7,429 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed14.9 mi (24 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 6 E over US 24 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2024.

What condition is Mo 6 E over US 24 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Mo 6 E over US 24 carry?

About 3,910 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mo 6 E over US 24?

The structure is 245 ft (74.8 m) long with a longest span of 86 ft (26.2 m) and a deck 43 ft wide.

Who owns Mo 6 E over US 24?

It is owned by the State Highway Agency.