US Bridges

21-S5 over Mulberry CR

Fair

Ripley County, Missouri · S 5 T 22 N R 2 E · Structure no. 18224

Built
1950
75 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
45
2023 count
Owner
County
County Highway Agency

About this bridge

21-S5 over Mulberry CR is a concrete continuous slab carrying 21-S5 over Mulberry CR in Ripley County, Missouri. It was built in 1950, so it is 75 years old, older 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 5 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 45 vehicles a day, roughly 10% of them trucks, projected to reach 54 by 2043. The structure is 23 ft (7 m) long and 20 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries21-S5
CrossesMulberry CR
LocationS 5 T 22 N R 2 E
RouteCounty Highway 177
CountyRipley County
StateMissouri
Coordinates36.5799, -90.8888
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2023)
Projected traffic54 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 21-S5 over Mulberry CR built?

It was built in 1950, making it 75 years old in 2025.

What condition is 21-S5 over Mulberry 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 2025.

How much traffic does 21-S5 over Mulberry CR carry?

About 45 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 21-S5 over Mulberry CR?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 20 ft wide.

Who owns 21-S5 over Mulberry CR?

It is owned by the County Highway Agency.