US Bridges

Waterbury Falls over Trib of Dardenne C

Fair

St. Charles County, Missouri · S 1669 T 46 N R 3 E · Structure no. 29132

Built
2001
24 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete Continuous
Length
43 ft
3 main spans
Daily traffic
600
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Waterbury Falls over Trib of Dardenne C is a concrete continuous culvert carrying Waterbury Falls over Trib of Dardenne C in St. Charles County, Missouri. It was built in 2001, so it is 24 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 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 600 vehicles a day, roughly 1% of them trucks, projected to reach 930 by 2044. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWaterbury Falls
CrossesTrib of Dardenne C
LocationS 1669 T 46 N R 3 E
RouteCity Street 0
CountySt. Charles County
StateMissouri
Coordinates38.72004, -90.69641
Functional classUrban Local

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length43 ft (13.1 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 traffic600 (2024)
Projected traffic930 by 2044
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
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 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 Waterbury Falls over Trib of Dardenne C built?

It was built in 2001, making it 24 years old in 2025.

What condition is Waterbury Falls over Trib of Dardenne C 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 Waterbury Falls over Trib of Dardenne C carry?

About 600 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Waterbury Falls over Trib of Dardenne C?

The structure is 43 ft (13.1 m) long with a longest span of 12 ft (3.7 m).

Who owns Waterbury Falls over Trib of Dardenne C?

It is owned by the City or Municipal Highway Agency.