US Bridges

County Road 1135 over Flat CR

Fair

Barry County, Missouri · S 3 T 23 N R 27 W · Structure no. 36268

Built
2020
5 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
150 ft
2 main spans
Daily traffic
200
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 1135 over Flat CR is a prestressed concrete continuous box beam or girders - multiple carrying County Road 1135 over Flat CR in Barry County, Missouri. It was built in 2020, so it is 5 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 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 340 by 2044. The structure is 150 ft (45.7 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 1135
CrossesFlat CR
LocationS 3 T 23 N R 27 W
RouteCounty Highway 605
CountyBarry County
StateMissouri
Coordinates36.73717, -93.83986
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span75 ft (22.9 m)
Deck width24 ft (7.3 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 closed6.2 mi (10 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 Road 1135 over Flat CR built?

It was built in 2020, making it 5 years old in 2025.

What condition is County Road 1135 over Flat 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 February 2024.

How much traffic does County Road 1135 over Flat CR carry?

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

How long is County Road 1135 over Flat CR?

The structure is 150 ft (45.7 m) long with a longest span of 75 ft (22.9 m) and a deck 24 ft wide.

Who owns County Road 1135 over Flat CR?

It is owned by the County Highway Agency.