US Bridges

Farm RD 21 over Br of Clear CR

Good

Greene County, Missouri · S 32 T 31 N R 24 W · Structure no. 34145

Built
2009
16 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
30
2024 count
Owner
County
County Highway Agency

About this bridge

Farm RD 21 over Br of Clear CR is a prestressed concrete stringer/multi-beam or girder carrying Farm RD 21 over Br of Clear CR in Greene County, Missouri. It was built in 2009, so it is 16 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 62 by 2044. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFarm RD 21
CrossesBr of Clear CR
LocationS 32 T 31 N R 24 W
RouteCounty Highway 21
Coordinates37.37256, -93.5924
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2024)
Projected traffic62 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 21 over Br of Clear CR built?

It was built in 2009, making it 16 years old in 2025.

What condition is Farm RD 21 over Br of Clear 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 May 2024.

How much traffic does Farm RD 21 over Br of Clear CR carry?

About 30 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Farm RD 21 over Br of Clear CR?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 26 ft wide.

Who owns Farm RD 21 over Br of Clear CR?

It is owned by the County Highway Agency.