US Bridges

W Main ST over Trib of Plattin CR

GoodPosted for load

Jefferson County, Missouri · S 6 T 40 N R 6 E · Structure no. 36355

Built
2007
18 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
4,546
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Main ST over Trib of Plattin CR is a concrete culvert carrying W Main ST over Trib of Plattin CR in Jefferson County, Missouri. It was built in 2007, so it is 18 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 4,546 vehicles a day, roughly 4% of them trucks, projected to reach 7,728 by 2043. The structure is 26 ft (7.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW Main ST
CrossesTrib of Plattin CR
LocationS 6 T 40 N R 6 E
RouteCity Street 0
CountyJefferson County
StateMissouri
Coordinates38.21903, -90.39711
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span9 ft (2.7 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,546 (2023)
Projected traffic7,728 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was W Main ST over Trib of Plattin CR built?

It was built in 2007, making it 18 years old in 2025.

What condition is W Main ST over Trib of Plattin 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 March 2023.

How much traffic does W Main ST over Trib of Plattin CR carry?

About 4,546 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is W Main ST over Trib of Plattin CR?

The structure is 26 ft (7.8 m) long with a longest span of 9 ft (2.7 m) and a deck 38 ft wide.

Who owns W Main ST over Trib of Plattin CR?

It is owned by the City or Municipal Highway Agency.