US Bridges

County RD #122 over Drain Dtch

Fair

Dunklin County, Missouri · S 6 T 22 N R 10 E · Structure no. 15160

Built
1992
33 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

County RD #122 over Drain Dtch is a steel stringer/multi-beam or girder carrying County RD #122 over Drain Dtch in Dunklin County, Missouri. It was built in 1992, so it is 33 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 5 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 140 by 2044. The structure is 30 ft (9.1 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty RD #122
CrossesDrain Dtch
LocationS 6 T 22 N R 10 E
RouteCounty Highway 87
CountyDunklin County
StateMissouri
Coordinates36.57428, -90.02564
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.4 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic140 by 2044
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 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 #122 over Drain Dtch built?

It was built in 1992, making it 33 years old in 2025.

What condition is County RD #122 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 January 2024.

How much traffic does County RD #122 over Drain Dtch carry?

About 100 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD #122 over Drain Dtch?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 22 ft wide.

Who owns County RD #122 over Drain Dtch?

It is owned by the County Highway Agency.