US Bridges

Mo 7 N over Big CR Ovrfl

Good

Henry County, Missouri · S 22 T 42 N R 27 W · Structure no. 4238

Built
1997
28 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
445 ft
6 main spans
Daily traffic
7,569
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 7 N over Big CR Ovrfl is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 7 N over Big CR Ovrfl in Henry County, Missouri. It was built in 1997, so it is 28 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 7,569 vehicles a day, roughly 21% of them trucks, projected to reach 13,246 by 2044. The structure is 445 ft (135.6 m) long and 41 ft wide. If it were closed, the detour would be 32.9 mi (53 km).

CarriesMo 7 N
CrossesBig CR Ovrfl
LocationS 22 T 42 N R 27 W
RouteState Highway 7
Coordinates38.42753, -93.88592
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.3 US tons
Inventory rating50.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length445 ft (135.6 m)
Longest span79 ft (24.1 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,569 (2024)
Projected traffic13,246 by 2044
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed32.9 mi (53 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 7 N over Big CR Ovrfl built?

It was built in 1997, making it 28 years old in 2025.

What condition is Mo 7 N over Big CR Ovrfl 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 January 2023.

How much traffic does Mo 7 N over Big CR Ovrfl carry?

About 7,569 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Mo 7 N over Big CR Ovrfl?

The structure is 445 ft (135.6 m) long with a longest span of 79 ft (24.1 m) and a deck 41 ft wide.

Who owns Mo 7 N over Big CR Ovrfl?

It is owned by the State Highway Agency.