US Bridges

Bu 32 E over Flat Rvr

Fair

St. Francois County, Missouri · S 7 T 36 N R 5 E · Structure no. 5133

Built
1928
97 years old, rebuilt 1987
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
163 ft
5 main spans
Daily traffic
12,944
2024 count
Owner
State
State Highway Agency

About this bridge

Bu 32 E over Flat Rvr is a concrete tee beam carrying Bu 32 E over Flat Rvr in St. Francois County, Missouri. It was built in 1928 and reconstructed in 1987, so it is 97 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 12,944 vehicles a day, roughly 6% of them trucks, projected to reach 22,005 by 2044. The structure is 163 ft (49.7 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesBu 32 E
CrossesFlat Rvr
LocationS 7 T 36 N R 5 E
RouteState Highway 32
CountySt. Francois County
StateMissouri
Coordinates37.84909, -90.51729
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating37.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length163 ft (49.7 m)
Longest span32 ft (9.9 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,944 (2024)
Projected traffic22,005 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.1 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bu 32 E over Flat Rvr built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1987.

What condition is Bu 32 E over Flat Rvr 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 2024.

How much traffic does Bu 32 E over Flat Rvr carry?

About 12,944 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Bu 32 E over Flat Rvr?

The structure is 163 ft (49.7 m) long with a longest span of 32 ft (9.9 m) and a deck 43 ft wide.

Who owns Bu 32 E over Flat Rvr?

It is owned by the State Highway Agency.