US Bridges

Dietrich RD over Camp CR

Fair

St. Charles County, Missouri · S 32 T 48 N R 1 E · Structure no. 12241

Built
1993
32 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
1,526
2024 count
Owner
County
County Highway Agency

About this bridge

Dietrich RD over Camp CR is a steel stringer/multi-beam or girder carrying Dietrich RD over Camp CR in St. Charles County, Missouri. It was built in 1993, so it is 32 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 1,526 vehicles a day, roughly 10% of them trucks, projected to reach 3,357 by 2044. The structure is 63 ft (19.2 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesDietrich RD
CrossesCamp CR
LocationS 32 T 48 N R 1 E
RouteCounty Highway 3
CountySt. Charles County
StateMissouri
Coordinates38.87856, -90.92729
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating70.4 US tons
Inventory rating46.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span61 ft (18.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,526 (2024)
Projected traffic3,357 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Dietrich RD over Camp CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Dietrich RD over Camp 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 Dietrich RD over Camp CR carry?

About 1,526 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Dietrich RD over Camp CR?

The structure is 63 ft (19.2 m) long with a longest span of 61 ft (18.6 m) and a deck 33 ft wide.

Who owns Dietrich RD over Camp CR?

It is owned by the County Highway Agency.