US Bridges

SW Zack Wheat DR over Long CR

Good

Caldwell County, Missouri · S 16 T 55 N R 28 W · Structure no. 23367

Built
1900
125 years old, rebuilt 2017
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

SW Zack Wheat DR over Long CR is a steel stringer/multi-beam or girder carrying SW Zack Wheat DR over Long CR in Caldwell County, Missouri. It was built in 1900 and reconstructed in 2017, so it is 125 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 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 60 ft (18.3 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSW Zack Wheat DR
CrossesLong CR
LocationS 16 T 55 N R 28 W
RouteCounty Highway 406
CountyCaldwell County
StateMissouri
Coordinates39.57939, -94.0553
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
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width22 ft (6.6 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SW Zack Wheat DR over Long CR built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 2017.

What condition is SW Zack Wheat DR over Long 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 October 2023.

How much traffic does SW Zack Wheat DR over Long CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SW Zack Wheat DR over Long CR?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 22 ft wide.

Who owns SW Zack Wheat DR over Long CR?

It is owned by the County Highway Agency.