US Bridges

Droste RD over Cole CR

Fair

St. Charles County, Missouri · S 25 T 47 N R 4 E · Structure no. 22958

Built
1964
61 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
13,300
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Droste RD over Cole CR is a concrete culvert carrying Droste RD over Cole CR in St. Charles County, Missouri. It was built in 1964, so it is 61 years old, older 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 13,300 vehicles a day, roughly 5% of them trucks, projected to reach 20,615 by 2044. The structure is 32 ft (9.8 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesDroste RD
CrossesCole CR
LocationS 25 T 47 N R 4 E
RouteCity Street 0
CountySt. Charles County
StateMissouri
Coordinates38.79683, -90.52506
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length32 ft (9.8 m)
Longest span15 ft (4.6 m)
Deck width46 ft (14 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,300 (2024)
Projected traffic20,615 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Droste RD over Cole CR built?

It was built in 1964, making it 61 years old in 2025.

What condition is Droste RD over Cole 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 January 2024.

How much traffic does Droste RD over Cole CR carry?

About 13,300 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Droste RD over Cole CR?

The structure is 32 ft (9.8 m) long with a longest span of 15 ft (4.6 m) and a deck 46 ft wide.

Who owns Droste RD over Cole CR?

It is owned by the City or Municipal Highway Agency.