US Bridges

County RD 448 over Drain Dtch

Good

Audrain County, Missouri · S 26 T 52 N R 7 W · Structure no. 35878

Built
2018
7 years old
Condition
Good
inspected May 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
24 ft
3 main spans
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 448 over Drain Dtch is a aluminum, wrought iron, or cast iron culvert carrying County RD 448 over Drain Dtch in Audrain County, Missouri. It was built in 2018, so it is 7 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 24 ft (7.3 m) long and 24 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCounty RD 448
CrossesDrain Dtch
LocationS 26 T 52 N R 7 W
RouteCounty Highway 454
Coordinates39.25175, -91.66737
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans3
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span6 ft (1.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic94 by 2043
Trucks10%
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

OwnerCounty 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 County RD 448 over Drain Dtch built?

It was built in 2018, making it 7 years old in 2025.

What condition is County RD 448 over Drain Dtch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does County RD 448 over Drain Dtch carry?

About 75 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 448 over Drain Dtch?

The structure is 24 ft (7.3 m) long with a longest span of 6 ft (1.8 m) and a deck 24 ft wide.

Who owns County RD 448 over Drain Dtch?

It is owned by the County Highway Agency.