US Bridges

Wolfrum RD over Trib Dardenne CR

Fair

St. Charles County, Missouri · S 1785 T 46 N R 3 E · Structure no. 35812

Built
2009
16 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
5,000
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Wolfrum RD over Trib Dardenne CR is a concrete culvert carrying Wolfrum RD over Trib Dardenne CR in St. Charles County, Missouri. It was built in 2009, so it is 16 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 5,000 vehicles a day, roughly 10% of them trucks, projected to reach 7,750 by 2044. The structure is 23 ft (6.9 m) long and 61 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

Open in Google Maps
CarriesWolfrum RD
CrossesTrib Dardenne CR
LocationS 1785 T 46 N R 3 E
RouteCounty Highway 246
CountySt. Charles County
StateMissouri
Coordinates38.72172, -90.64261
Functional classUrban 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span11 ft (3.3 m)
Deck width61 ft (18.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2024)
Projected traffic7,750 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCounty 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 Wolfrum RD over Trib Dardenne CR built?

It was built in 2009, making it 16 years old in 2025.

What condition is Wolfrum RD over Trib Dardenne 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 Wolfrum RD over Trib Dardenne CR carry?

About 5,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Wolfrum RD over Trib Dardenne CR?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.3 m) and a deck 61 ft wide.

Who owns Wolfrum RD over Trib Dardenne CR?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.