US Bridges

Mo 21 S over Hurricane CR

FairPosted for load

Ripley County, Missouri · S 19 T 22 N R 2 E · Structure no. 5595

Built
1931
94 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
128 ft
3 main spans
Daily traffic
883
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 21 S over Hurricane CR is a steel stringer/multi-beam or girder carrying Mo 21 S over Hurricane CR in Ripley County, Missouri. It was built in 1931, so it is 94 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. Its operating status is: posted for load restriction.

It carries about 883 vehicles a day, roughly 18% of them trucks, projected to reach 1,325 by 2044. The structure is 128 ft (39 m) long and 25 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesMo 21 S
CrossesHurricane CR
LocationS 19 T 22 N R 2 E
RouteState Highway 21
CountyRipley County
StateMissouri
Coordinates36.54215, -90.89151
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length128 ft (39 m)
Longest span43 ft (13 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 21 S over Hurricane CR built?

It was built in 1931, making it 94 years old in 2025.

What condition is Mo 21 S over Hurricane 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 January 2024.

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

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

How long is Mo 21 S over Hurricane CR?

The structure is 128 ft (39 m) long with a longest span of 43 ft (13 m) and a deck 25 ft wide.

Who owns Mo 21 S over Hurricane CR?

It is owned by the State Highway Agency.