US Bridges

Redd School RD over Unnamed Str

Good

Chariton County, Missouri · S 16 T 54 N R 17 W · Structure no. 23659

Built
1900
125 years old, rebuilt 1989
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Redd School RD over Unnamed Str is a steel stringer/multi-beam or girder carrying Redd School RD over Unnamed Str in Chariton County, Missouri. It was built in 1900 and reconstructed in 1989, 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 33 ft (10.1 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRedd School RD
CrossesUnnamed Str
LocationS 16 T 54 N R 17 W
RouteCounty Highway 423
Coordinates39.48536, -92.83196
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating92.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length33 ft (10.1 m)
Longest span32 ft (9.8 m)
Deck width22 ft (6.8 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Redd School RD over Unnamed Str built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1989.

What condition is Redd School RD over Unnamed Str 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 2024.

How much traffic does Redd School RD over Unnamed Str carry?

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

How long is Redd School RD over Unnamed Str?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.8 m) and a deck 22 ft wide.

Who owns Redd School RD over Unnamed Str?

It is owned by the County Highway Agency.