US Bridges

Rt a S over Main Drain Dtch

PoorPosted for load

Dunklin County, Missouri · S 23 T 18 N R 8 E · Structure no. 8926

Built
1933
92 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
72 ft
3 main spans
Daily traffic
400
2024 count
Owner
State
State Highway Agency

About this bridge

Rt a S over Main Drain Dtch is a steel stringer/multi-beam or girder carrying Rt a S over Main Drain Dtch in Dunklin County, Missouri. It was built in 1933, so it is 92 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 11% of them trucks, projected to reach 560 by 2044. The structure is 72 ft (21.9 m) long and 21 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesRt a S
CrossesMain Drain Dtch
LocationS 23 T 18 N R 8 E
RouteState Highway 0A
Coordinates36.18578, -90.15986
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.8 US tons
Inventory rating15.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length72 ft (21.9 m)
Longest span26 ft (7.9 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic560 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$764,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt a S over Main Drain Dtch built?

It was built in 1933, making it 92 years old in 2025.

What condition is Rt a S over Main Drain Dtch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Rt a S over Main Drain Dtch carry?

About 400 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt a S over Main Drain Dtch?

The structure is 72 ft (21.9 m) long with a longest span of 26 ft (7.9 m) and a deck 21 ft wide.

Who owns Rt a S over Main Drain Dtch?

It is owned by the State Highway Agency.