US Bridges

Mo 100 E over Johnson CR

Fair

Osage County, Missouri · S 7 T 43 N R 8 W · Structure no. 9709

Built
1953
72 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete Continuous
Length
52 ft
4 main spans
Daily traffic
2,015
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 100 E over Johnson CR is a concrete continuous culvert carrying Mo 100 E over Johnson CR in Osage County, Missouri. It was built in 1953, so it is 72 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 2,015 vehicles a day, roughly 5% of them trucks, projected to reach 2,922 by 2044. The structure is 52 ft (15.8 m) long. If it were closed, the detour would be 24.2 mi (39 km).

CarriesMo 100 E
CrossesJohnson CR
LocationS 7 T 43 N R 8 W
RouteState Highway 100
Coordinates38.49431, -91.85902
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 inspectionFebruary 2025
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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadH 10
Structure length52 ft (15.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,015 (2024)
Projected traffic2,922 by 2044
Trucks5%
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 Mo 100 E over Johnson CR built?

It was built in 1953, making it 72 years old in 2025.

What condition is Mo 100 E over Johnson 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 February 2025.

How much traffic does Mo 100 E over Johnson CR carry?

About 2,015 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 100 E over Johnson CR?

The structure is 52 ft (15.8 m) long with a longest span of 12 ft (3.7 m).

Who owns Mo 100 E over Johnson CR?

It is owned by the State Highway Agency.