US Bridges

Mo 84 E over ST Francis Rvr

Poor

Dunklin County, Missouri · S 6 T 18 N R 9 E · Structure no. 2736

Built
1981
44 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,659 ft
3 main spans
Daily traffic
2,804
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 84 E over ST Francis Rvr is a steel continuous stringer/multi-beam or girder carrying Mo 84 E over ST Francis Rvr in Dunklin County, Missouri. It was built in 1981, so it is 44 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,804 vehicles a day, roughly 17% of them trucks, projected to reach 4,486 by 2044. The structure is 1,659 ft (505.7 m) long and 47 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesMo 84 E
CrossesST Francis Rvr
LocationS 6 T 18 N R 9 E
RouteState Highway 84
Coordinates36.23656, -90.12636
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating33.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+23 approach)
Design loadHS 20
Structure length1,659 ft (505.7 m)
Longest span115 ft (35.1 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,804 (2024)
Projected traffic4,486 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$10.8 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 84 E over ST Francis Rvr built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mo 84 E over ST Francis Rvr in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Mo 84 E over ST Francis Rvr carry?

About 2,804 vehicles per day (2024 count), of which roughly 17% are trucks.

How long is Mo 84 E over ST Francis Rvr?

The structure is 1,659 ft (505.7 m) long with a longest span of 115 ft (35.1 m) and a deck 47 ft wide.

Who owns Mo 84 E over ST Francis Rvr?

It is owned by the State Highway Agency.