US Bridges

Charbonier RD over Br of Cowmire CR

FairPosted for load

St. Louis County, Missouri · S 24 T 47 N R 5 E · Structure no. 30102

Built
2003
22 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
50 ft
3 main spans
Daily traffic
6,246
2024 count
Owner
County
County Highway Agency

About this bridge

Charbonier RD over Br of Cowmire CR is a concrete continuous culvert carrying Charbonier RD over Br of Cowmire CR in St. Louis County, Missouri. It was built in 2003, so it is 22 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. Its operating status is: posted for load restriction.

It carries about 6,246 vehicles a day, roughly 10% of them trucks, projected to reach 8,432 by 2044. The structure is 50 ft (15.2 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCharbonier RD
CrossesBr of Cowmire CR
LocationS 24 T 47 N R 5 E
RouteCounty Highway 0
CountySt. Louis County
StateMissouri
Coordinates38.81111, -90.39127
Functional classUrban Minor Arterial

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating64.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length50 ft (15.2 m)
Longest span16 ft (4.9 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,246 (2024)
Projected traffic8,432 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Charbonier RD over Br of Cowmire CR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Charbonier RD over Br of Cowmire 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 2024.

How much traffic does Charbonier RD over Br of Cowmire CR carry?

About 6,246 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Charbonier RD over Br of Cowmire CR?

The structure is 50 ft (15.2 m) long with a longest span of 16 ft (4.9 m) and a deck 40 ft wide.

Who owns Charbonier RD over Br of Cowmire CR?

It is owned by the County Highway Agency.