US Bridges

Mo 7 S over Big CR Ovrfl

Fair

Henry County, Missouri · S 15 T 42 N R 27 W · Structure no. 3180

Built
1978
47 years old, rebuilt 2009
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
440 ft
6 main spans
Daily traffic
8,050
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 7 S over Big CR Ovrfl is a steel continuous stringer/multi-beam or girder carrying Mo 7 S over Big CR Ovrfl in Henry County, Missouri. It was built in 1978 and reconstructed in 2009, so it is 47 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 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 8,050 vehicles a day, roughly 23% of them trucks, projected to reach 14,088 by 2044. The structure is 440 ft (134 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMo 7 S
CrossesBig CR Ovrfl
LocationS 15 T 42 N R 27 W
RouteState Highway 7
CountyHenry County
StateMissouri
Coordinates38.4273, -93.88591
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.6 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length440 ft (134 m)
Longest span78 ft (23.8 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,050 (2024)
Projected traffic14,088 by 2044
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 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 S over Big CR Ovrfl built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2009.

What condition is Mo 7 S over Big CR 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 2023.

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

About 8,050 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is Mo 7 S over Big CR Ovrfl?

The structure is 440 ft (134 m) long with a longest span of 78 ft (23.8 m) and a deck 35 ft wide.

Who owns Mo 7 S over Big CR Ovrfl?

It is owned by the State Highway Agency.