US Bridges

County RD 420 over Drain Dtch

Good

Stoddard County, Missouri · S 21 T 26 N R 9 E · Structure no. 34061

Built
2012
13 years old
Condition
Good
inspected January 2025
Type
Box Beam or Girders - Multiple
Concrete
Length
104 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 420 over Drain Dtch is a concrete box beam or girders - multiple carrying County RD 420 over Drain Dtch in Stoddard County, Missouri. It was built in 2012, so it is 13 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 46 by 2043. The structure is 104 ft (31.7 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty RD 420
CrossesDrain Dtch
LocationS 21 T 26 N R 9 E
RouteCounty Highway 398
Coordinates36.87731, -90.07797
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating38.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span42 ft (12.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic46 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 420 over Drain Dtch built?

It was built in 2012, making it 13 years old in 2025.

What condition is County RD 420 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 January 2025.

How much traffic does County RD 420 over Drain Dtch carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 420 over Drain Dtch?

The structure is 104 ft (31.7 m) long with a longest span of 42 ft (12.8 m) and a deck 24 ft wide.

Who owns County RD 420 over Drain Dtch?

It is owned by the County Highway Agency.