US Bridges

Corn RD over Perdue CR

Good

Jackson County, Missouri · S 14 T 48 N R 30 W · Structure no. 20414

Built
1920
105 years old, rebuilt 1981
Condition
Good
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
125 ft
2 main spans
Daily traffic
495
2024 count
Owner
County
County Highway Agency

About this bridge

Corn RD over Perdue CR is a prestressed concrete tee beam carrying Corn RD over Perdue CR in Jackson County, Missouri. It was built in 1920 and reconstructed in 1981, so it is 105 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 495 vehicles a day, roughly 5% of them trucks, projected to reach 743 by 2044. The structure is 125 ft (38.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCorn RD
CrossesPerdue CR
LocationS 14 T 48 N R 30 W
RouteCounty Highway 259
Coordinates38.966, -94.19526
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.5 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length125 ft (38.1 m)
Longest span61 ft (18.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic495 (2024)
Projected traffic743 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Corn RD over Perdue CR built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1981.

What condition is Corn RD over Perdue 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 2023.

How much traffic does Corn RD over Perdue CR carry?

About 495 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Corn RD over Perdue CR?

The structure is 125 ft (38.1 m) long with a longest span of 61 ft (18.6 m) and a deck 30 ft wide.

Who owns Corn RD over Perdue CR?

It is owned by the County Highway Agency.