US Bridges

Mo 106 E over Jacks Fork

PoorPosted for load

Shannon County, Missouri · S 25 T 29 N R 5 W · Structure no. 5993

Built
1940
85 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
385 ft
6 main spans
Daily traffic
452
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 106 E over Jacks Fork is a steel continuous stringer/multi-beam or girder carrying Mo 106 E over Jacks Fork in Shannon County, Missouri. It was built in 1940, so it is 85 years old, older 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. Its operating status is: posted for load restriction.

It carries about 452 vehicles a day, roughly 23% of them trucks, projected to reach 678 by 2044. The structure is 385 ft (117.3 m) long and 27 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesMo 106 E
CrossesJacks Fork
LocationS 25 T 29 N R 5 W
RouteState Highway 106
Coordinates37.14817, -91.4432
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.8 US tons
Inventory rating16.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length385 ft (117.3 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic452 (2024)
Projected traffic678 by 2044
Trucks23%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 106 E over Jacks Fork built?

It was built in 1940, making it 85 years old in 2025.

What condition is Mo 106 E over Jacks Fork 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 106 E over Jacks Fork carry?

About 452 vehicles per day (2024 count), of which roughly 23% are trucks.

How long is Mo 106 E over Jacks Fork?

The structure is 385 ft (117.3 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns Mo 106 E over Jacks Fork?

It is owned by the State Highway Agency.