US Bridges

County Road 397 over Ingalls CR

Good

Hickory County, Missouri · S 1 T 35 N R 21 W · Structure no. 31884

Built
2007
18 years old
Condition
Good
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
250
2025 count
Owner
County
County Highway Agency

About this bridge

County Road 397 over Ingalls CR is a prestressed concrete stringer/multi-beam or girder carrying County Road 397 over Ingalls CR in Hickory County, Missouri. It was built in 2007, so it is 18 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 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 250 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2045. The structure is 75 ft (22.9 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 397
CrossesIngalls CR
LocationS 1 T 35 N R 21 W
RouteCounty Highway 230
CountyHickory County
StateMissouri
Coordinates37.80941, -93.20632
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.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.3 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span73 ft (22.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2025)
Projected traffic300 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 County Road 397 over Ingalls CR built?

It was built in 2007, making it 18 years old in 2025.

What condition is County Road 397 over Ingalls 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 February 2025.

How much traffic does County Road 397 over Ingalls CR carry?

About 250 vehicles per day (2025 count), of which roughly 10% are trucks.

How long is County Road 397 over Ingalls CR?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.3 m) and a deck 25 ft wide.

Who owns County Road 397 over Ingalls CR?

It is owned by the County Highway Agency.