US Bridges

Nation RD over Clear CR

GoodPosted for load

Clay County, Missouri · S 16 T 53 N R 31 W · Structure no. 13523

Built
1986
39 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
186 ft
3 main spans
Daily traffic
246
2024 count
Owner
County
County Highway Agency

About this bridge

Nation RD over Clear CR is a prestressed concrete tee beam carrying Nation RD over Clear CR in Clay County, Missouri. It was built in 1986, so it is 39 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. Its operating status is: posted for load restriction.

It carries about 246 vehicles a day, roughly 10% of them trucks, projected to reach 381 by 2044. The structure is 186 ft (56.7 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNation RD
CrossesClear CR
LocationS 16 T 53 N R 31 W
RouteCounty Highway 40
Coordinates39.40265, -94.38951
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating24.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length186 ft (56.7 m)
Longest span49 ft (14.9 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic246 (2024)
Projected traffic381 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Nation RD over Clear CR built?

It was built in 1986, making it 39 years old in 2025.

What condition is Nation RD over Clear 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 January 2024.

How much traffic does Nation RD over Clear CR carry?

About 246 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Nation RD over Clear CR?

The structure is 186 ft (56.7 m) long with a longest span of 49 ft (14.9 m) and a deck 27 ft wide.

Who owns Nation RD over Clear CR?

It is owned by the County Highway Agency.