US Bridges

ST Johns RD over Browns Br - Dubois

Fair

Franklin County, Missouri · S 900 T 43 N R 1 E · Structure no. 15943

Built
1989
36 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

ST Johns RD over Browns Br - Dubois is a concrete culvert carrying ST Johns RD over Browns Br - Dubois in Franklin County, Missouri. It was built in 1989, so it is 36 years old, younger 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 6 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 250 vehicles a day, roughly 8% of them trucks, projected to reach 450 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesST Johns RD
CrossesBrowns Br - Dubois
LocationS 900 T 43 N R 1 E
RouteCounty Highway 0
CountyFranklin County
StateMissouri
Coordinates38.51153, -90.94568
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadOther
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic450 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 ST Johns RD over Browns Br - Dubois built?

It was built in 1989, making it 36 years old in 2025.

What condition is ST Johns RD over Browns Br - Dubois 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 January 2025.

How much traffic does ST Johns RD over Browns Br - Dubois carry?

About 250 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is ST Johns RD over Browns Br - Dubois?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns ST Johns RD over Browns Br - Dubois?

It is owned by the County Highway Agency.