US Bridges

Mo 97 S over Sons CR

Fair

Dade County, Missouri · S 31 T 32 N R 27 W · Structure no. 34094

Built
2012
13 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Other
Length
108 ft
1 main span
Daily traffic
582
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 97 S over Sons CR is a other stringer/multi-beam or girder carrying Mo 97 S over Sons CR in Dade County, Missouri. It was built in 2012, so it is 13 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 582 vehicles a day, roughly 21% of them trucks, projected to reach 757 by 2044. The structure is 108 ft (32.9 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesMo 97 S
CrossesSons CR
LocationS 31 T 32 N R 27 W
RouteState Highway 97
CountyDade County
StateMissouri
Coordinates37.46887, -93.94999
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating42.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialOther
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length108 ft (32.9 m)
Longest span104 ft (31.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic582 (2024)
Projected traffic757 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 97 S over Sons CR built?

It was built in 2012, making it 13 years old in 2025.

What condition is Mo 97 S over Sons 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 November 2024.

How much traffic does Mo 97 S over Sons CR carry?

About 582 vehicles per day (2024 count), of which roughly 21% are trucks.

How long is Mo 97 S over Sons CR?

The structure is 108 ft (32.9 m) long with a longest span of 104 ft (31.7 m) and a deck 31 ft wide.

Who owns Mo 97 S over Sons CR?

It is owned by the State Highway Agency.