US Bridges

Rt Oo S over Plum CR

Fair

St. Francois County, Missouri · S 15 T 35 N R 6 E · Structure no. 5011

Built
1926
99 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
54 ft
3 main spans
Daily traffic
4,624
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Oo S over Plum CR is a concrete continuous culvert carrying Rt Oo S over Plum CR in St. Francois County, Missouri. It was built in 1926, so it is 99 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 4,624 vehicles a day, roughly 11% of them trucks, projected to reach 7,398 by 2044. The structure is 54 ft (16.4 m) long and 38 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesRt Oo S
CrossesPlum CR
LocationS 15 T 35 N R 6 E
RouteState Highway 0OO
CountySt. Francois County
StateMissouri
Coordinates37.74208, -90.35397
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 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 rating40.7 US tons
Inventory rating23.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length54 ft (16.4 m)
Longest span12 ft (3.7 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,624 (2024)
Projected traffic7,398 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Rt Oo S over Plum CR built?

It was built in 1926, making it 99 years old in 2025.

What condition is Rt Oo S over Plum 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 March 2023.

How much traffic does Rt Oo S over Plum CR carry?

About 4,624 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt Oo S over Plum CR?

The structure is 54 ft (16.4 m) long with a longest span of 12 ft (3.7 m) and a deck 38 ft wide.

Who owns Rt Oo S over Plum CR?

It is owned by the State Highway Agency.