US Bridges

Mo 21 S over Mulberry CR

Good

Ripley County, Missouri · S 5 T 22 N R 2 E · Structure no. 5472

Built
1930
95 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
883
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 21 S over Mulberry CR is a concrete continuous culvert carrying Mo 21 S over Mulberry CR in Ripley County, Missouri. It was built in 1930, so it is 95 years old, older 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 883 vehicles a day, roughly 18% of them trucks, projected to reach 1,325 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 31.7 mi (51 km).

CarriesMo 21 S
CrossesMulberry CR
LocationS 5 T 22 N R 2 E
RouteState Highway 21
Coordinates36.58141, -90.88167
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic883 (2024)
Projected traffic1,325 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 21 S over Mulberry CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mo 21 S over Mulberry 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 December 2023.

How much traffic does Mo 21 S over Mulberry CR carry?

About 883 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Mo 21 S over Mulberry CR?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Mo 21 S over Mulberry CR?

It is owned by the State Highway Agency.