US Bridges

County RD # 502 over Drain Dtch

Fair

Dunklin County, Missouri · S 12 T 18 N R 9 E · Structure no. 19556

Built
1979
46 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
175 ft
5 main spans
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

County RD # 502 over Drain Dtch is a prestressed concrete box beam or girders - multiple carrying County RD # 502 over Drain Dtch in Dunklin County, Missouri. It was built in 1979, so it is 46 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 14 by 2044. The structure is 175 ft (53.3 m) long and 18 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty RD # 502
CrossesDrain Dtch
LocationS 12 T 18 N R 9 E
RouteCounty Highway 225
CountyDunklin County
StateMissouri
Coordinates36.21475, -90.0385
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length175 ft (53.3 m)
Longest span33 ft (10.1 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic14 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 County RD # 502 over Drain Dtch built?

It was built in 1979, making it 46 years old in 2025.

What condition is County RD # 502 over Drain Dtch 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 County RD # 502 over Drain Dtch carry?

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

How long is County RD # 502 over Drain Dtch?

The structure is 175 ft (53.3 m) long with a longest span of 33 ft (10.1 m) and a deck 18 ft wide.

Who owns County RD # 502 over Drain Dtch?

It is owned by the County Highway Agency.