US Bridges

Mo 51 S over E Fk Longs CR

Good

Bollinger County, Missouri · S 10 T 32 N R 9 E · Structure no. 4591

Built
1922
103 years old, rebuilt 2010
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
714
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 51 S over E Fk Longs CR is a prestressed concrete box beam or girders - single or spread carrying Mo 51 S over E Fk Longs CR in Bollinger County, Missouri. It was built in 1922 and reconstructed in 2010, so it is 103 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 714 vehicles a day, roughly 20% of them trucks, projected to reach 1,107 by 2044. The structure is 64 ft (19.5 m) long and 28 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesMo 51 S
CrossesE Fk Longs CR
LocationS 10 T 32 N R 9 E
RouteState Highway 51
Coordinates37.474, -90.03247
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating73.4 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length64 ft (19.5 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.4 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic714 (2024)
Projected traffic1,107 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 51 S over E Fk Longs CR built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 2010.

What condition is Mo 51 S over E Fk Longs CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2023.

How much traffic does Mo 51 S over E Fk Longs CR carry?

About 714 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Mo 51 S over E Fk Longs CR?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns Mo 51 S over E Fk Longs CR?

It is owned by the State Highway Agency.