US Bridges

County RD # 631 over Drain Dtch

Fair

Dunklin County, Missouri · S 9 T 16 N R 8 E · Structure no. 24099

Built
1999
26 years old
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Steel
Length
90 ft
1 main span
Daily traffic
100
2024 count
Owner
County
County Highway Agency

About this bridge

County RD # 631 over Drain Dtch is a steel box beam or girders - multiple carrying County RD # 631 over Drain Dtch in Dunklin County, Missouri. It was built in 1999, so it is 26 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 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 140 by 2044. The structure is 90 ft (27.4 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty RD # 631
CrossesDrain Dtch
LocationS 9 T 16 N R 8 E
RouteCounty Highway 457
CountyDunklin County
StateMissouri
Coordinates36.04315, -90.21303
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckSteel plate
Main spans1
Design loadOther
Structure length90 ft (27.4 m)
Longest span75 ft (22.9 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2024)
Projected traffic140 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 # 631 over Drain Dtch built?

It was built in 1999, making it 26 years old in 2025.

What condition is County RD # 631 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 # 631 over Drain Dtch carry?

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

How long is County RD # 631 over Drain Dtch?

The structure is 90 ft (27.4 m) long with a longest span of 75 ft (22.9 m) and a deck 19 ft wide.

Who owns County RD # 631 over Drain Dtch?

It is owned by the County Highway Agency.