US Bridges

Elm Branch RD over Flat CR

Fair

Pettis County, Missouri · S 2 T 43 N R 23 W · Structure no. 21051

Built
1993
32 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

Elm Branch RD over Flat CR is a prestressed concrete tee beam carrying Elm Branch RD over Flat CR in Pettis County, Missouri. It was built in 1993, so it is 32 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 43 by 2044. The structure is 120 ft (36.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesElm Branch RD
CrossesFlat CR
LocationS 2 T 43 N R 23 W
RouteCounty Highway 287
Coordinates38.52475, -93.4267
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 protection7 GoodSome minor problems.
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic43 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Elm Branch RD over Flat CR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Elm Branch RD 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 Elm Branch RD over Flat CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Elm Branch RD over Flat CR?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.

Who owns Elm Branch RD over Flat CR?

It is owned by the County Highway Agency.