US Bridges

Mo 52 E over Flat CR

Fair

Pettis County, Missouri · S 1 T 43 N R 23 W · Structure no. 3659

Built
1986
39 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
130 ft
3 main spans
Daily traffic
2,568
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 52 E over Flat CR is a prestressed concrete continuous tee beam carrying Mo 52 E over Flat CR in Pettis County, Missouri. It was built in 1986, so it is 39 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 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 2,568 vehicles a day, roughly 17% of them trucks, projected to reach 3,980 by 2044. The structure is 130 ft (39.6 m) long and 41 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

Open in Google Maps
CarriesMo 52 E
CrossesFlat CR
LocationS 1 T 43 N R 23 W
RouteState Highway 52
CountyPettis County
StateMissouri
Coordinates38.53912, -93.41798
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span44 ft (13.3 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,568 (2024)
Projected traffic3,980 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 km)
TollOn a free road
National Highway SystemNo

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 52 E over Flat CR built?

It was built in 1986, making it 39 years old in 2025.

What condition is Mo 52 E 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 January 2024.

How much traffic does Mo 52 E over Flat CR carry?

About 2,568 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Mo 52 E over Flat CR?

The structure is 130 ft (39.6 m) long with a longest span of 44 ft (13.3 m) and a deck 41 ft wide.

Who owns Mo 52 E over Flat CR?

It is owned by the State Highway Agency.