US Bridges

Flat Rock RD over E Fk Roubidoux Rvr

Fair

Texas County, Missouri · S 4 T 31 N R 11 W · Structure no. 21602

Built
1974
51 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
29 ft
6 main spans
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Flat Rock RD over E Fk Roubidoux Rvr is a concrete continuous slab carrying Flat Rock RD over E Fk Roubidoux Rvr in Texas County, Missouri. It was built in 1974, so it is 51 years old, older 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 24 by 2044. The structure is 29 ft (8.8 m) long and 14 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFlat Rock RD
CrossesE Fk Roubidoux Rvr
LocationS 4 T 31 N R 11 W
RouteCounty Highway 314
CountyTexas County
StateMissouri
Coordinates37.4221, -92.1463
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length29 ft (8.8 m)
Longest span5 ft (1.5 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic24 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byTown or Township 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 Flat Rock RD over E Fk Roubidoux Rvr built?

It was built in 1974, making it 51 years old in 2025.

What condition is Flat Rock RD over E Fk Roubidoux Rvr 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 November 2023.

How much traffic does Flat Rock RD over E Fk Roubidoux Rvr carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Flat Rock RD over E Fk Roubidoux Rvr?

The structure is 29 ft (8.8 m) long with a longest span of 5 ft (1.5 m) and a deck 14 ft wide.

Who owns Flat Rock RD over E Fk Roubidoux Rvr?

It is owned by the County Highway Agency and maintained by the Town or Township Highway Agency.