US Bridges

Mo 6 E over Grand Rvr Ovrfl

Fair

Daviess County, Missouri · S 16 T 59 N R 27 W · Structure no. 1891

Built
1968
57 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
3,989
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Grand Rvr Ovrfl is a concrete continuous culvert carrying Mo 6 E over Grand Rvr Ovrfl in Daviess County, Missouri. It was built in 1968, 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 fair condition with a lowest component rating of 5 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 3,989 vehicles a day, roughly 20% of them trucks, projected to reach 8,377 by 2044. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesGrand Rvr Ovrfl
LocationS 16 T 59 N R 27 W
RouteState Highway 6
CountyDaviess County
StateMissouri
Coordinates39.92938, -93.9328
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length30 ft (9.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,989 (2024)
Projected traffic8,377 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed18 mi (29 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 Mo 6 E over Grand Rvr Ovrfl built?

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

What condition is Mo 6 E over Grand Rvr Ovrfl 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 January 2024.

How much traffic does Mo 6 E over Grand Rvr Ovrfl carry?

About 3,989 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Mo 6 E over Grand Rvr Ovrfl?

The structure is 30 ft (9.1 m) long with a longest span of 10 ft (3 m).

Who owns Mo 6 E over Grand Rvr Ovrfl?

It is owned by the State Highway Agency.