US Bridges

County RD 324 over Sinking CR

FairPosted for load

Reynolds County, Missouri · S 35 T 31 N R 1 E · Structure no. 30506

Built
2003
22 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
130 ft
16 main spans
Daily traffic
6
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 324 over Sinking CR is a concrete continuous slab carrying County RD 324 over Sinking CR in Reynolds County, Missouri. It was built in 2003, so it is 22 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. Its operating status is: posted for load restriction.

It carries about 6 vehicles a day, roughly 5% of them trucks, projected to reach 7 by 2044. The structure is 130 ft (39.6 m) long and 12 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty RD 324
CrossesSinking CR
LocationS 35 T 31 N R 1 E
RouteCounty Highway 324
CountyReynolds County
StateMissouri
Coordinates37.3231, -90.9139
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating11.9 US tons
Inventory rating6.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans16
Design loadUnknown
Structure length130 ft (39.6 m)
Longest span8 ft (2.4 m)
Deck width12 ft (3.6 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2024)
Projected traffic7 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$893,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 324 over Sinking CR built?

It was built in 2003, making it 22 years old in 2025.

What condition is County RD 324 over Sinking CR 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 324 over Sinking CR carry?

About 6 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is County RD 324 over Sinking CR?

The structure is 130 ft (39.6 m) long with a longest span of 8 ft (2.4 m) and a deck 12 ft wide.

Who owns County RD 324 over Sinking CR?

It is owned by the County Highway Agency.