US Bridges

Farm RD 1120 over Flat CR

Good

Barry County, Missouri · S 21 T 23 N R 27 W · Structure no. 32416

Built
2008
17 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
134 ft
2 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

Farm RD 1120 over Flat CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Farm RD 1120 over Flat CR in Barry County, Missouri. It was built in 2008, so it is 17 years old, younger 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.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 340 by 2044. The structure is 134 ft (40.8 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFarm RD 1120
CrossesFlat CR
LocationS 21 T 23 N R 27 W
RouteCounty Highway 603
CountyBarry County
StateMissouri
Coordinates36.69214, -93.85823
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span65 ft (19.8 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2024)
Projected traffic340 by 2044
Trucks10%
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 Farm RD 1120 over Flat CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is Farm RD 1120 over Flat CR 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 February 2024.

How much traffic does Farm RD 1120 over Flat CR carry?

About 200 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Farm RD 1120 over Flat CR?

The structure is 134 ft (40.8 m) long with a longest span of 65 ft (19.8 m) and a deck 25 ft wide.

Who owns Farm RD 1120 over Flat CR?

It is owned by the County Highway Agency.