US Bridges

Mo 47 S over Flat CR

Fair

Franklin County, Missouri · S 26 T 43 N R 1 W · Structure no. 34938

Built
2015
10 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
201 ft
3 main spans
Daily traffic
19,780
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 47 S over Flat CR is a prestressed concrete continuous tee beam carrying Mo 47 S over Flat CR in Franklin County, Missouri. It was built in 2015, so it is 10 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 19,780 vehicles a day, roughly 6% of them trucks, projected to reach 37,582 by 2044. The structure is 201 ft (61.2 m) long and 79 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesMo 47 S
CrossesFlat CR
LocationS 26 T 43 N R 1 W
RouteState Highway 47
CountyFranklin County
StateMissouri
Coordinates38.44702, -90.99877
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.4 US tons
Inventory rating29.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length201 ft (61.2 m)
Longest span76 ft (23.2 m)
Deck width79 ft (24 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,780 (2024)
Projected traffic37,582 by 2044
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 47 S over Flat CR built?

It was built in 2015, making it 10 years old in 2025.

What condition is Mo 47 S over Flat CR 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 October 2023.

How much traffic does Mo 47 S over Flat CR carry?

About 19,780 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 47 S over Flat CR?

The structure is 201 ft (61.2 m) long with a longest span of 76 ft (23.2 m) and a deck 79 ft wide.

Who owns Mo 47 S over Flat CR?

It is owned by the State Highway Agency.