US Bridges

County RD 924 over W Fk Black Rvr

GoodPosted for load

Reynolds County, Missouri · S 26 T 33 N R 3 W · Structure no. 12785

Built
1972
53 years old, rebuilt 2010
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
36 ft
6 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 924 over W Fk Black Rvr is a concrete continuous slab carrying County RD 924 over W Fk Black Rvr in Reynolds County, Missouri. It was built in 1972 and reconstructed in 2010, so it is 53 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2044. The structure is 36 ft (11 m) long and 16 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty RD 924
CrossesW Fk Black Rvr
LocationS 26 T 33 N R 3 W
RouteCounty Highway 20
Coordinates37.5272, -91.234
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating66.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length36 ft (11 m)
Longest span4 ft (1.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic60 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 924 over W Fk Black Rvr built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2010.

What condition is County RD 924 over W Fk Black Rvr in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does County RD 924 over W Fk Black Rvr carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 924 over W Fk Black Rvr?

The structure is 36 ft (11 m) long with a longest span of 4 ft (1.3 m) and a deck 16 ft wide.

Who owns County RD 924 over W Fk Black Rvr?

It is owned by the County Highway Agency.