US Bridges

County RD 824 over Lt Otter Slough Dt

Fair

New Madrid County, Missouri · S 5 T 25 N R 13 E · Structure no. 34564

Built
2013
12 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 824 over Lt Otter Slough Dt is a concrete continuous culvert carrying County RD 824 over Lt Otter Slough Dt in New Madrid County, Missouri. It was built in 2013, so it is 12 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 50 vehicles a day, roughly 50% of them trucks, projected to reach 68 by 2043. The structure is 25 ft (7.5 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty RD 824
CrossesLt Otter Slough Dt
LocationS 5 T 25 N R 13 E
RouteCounty Highway 1
CountyNew Madrid County
StateMissouri
Coordinates36.83803, -89.67467
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 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 geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating93.3 US tons
Inventory rating55.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span24 ft (7.4 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic68 by 2043
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 824 over Lt Otter Slough Dt built?

It was built in 2013, making it 12 years old in 2025.

What condition is County RD 824 over Lt Otter Slough Dt 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 December 2024.

How much traffic does County RD 824 over Lt Otter Slough Dt carry?

About 50 vehicles per day (2023 count), of which roughly 50% are trucks.

How long is County RD 824 over Lt Otter Slough Dt?

The structure is 25 ft (7.5 m) long with a longest span of 24 ft (7.4 m) and a deck 33 ft wide.

Who owns County RD 824 over Lt Otter Slough Dt?

It is owned by the County Highway Agency.