US Bridges

Antioch RD over Shoal CR

Fair

Clay County, Missouri · S 18 T 52 N R 32 W · Structure no. 28493

Built
1978
47 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
158 ft
3 main spans
Daily traffic
5,000
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Antioch RD over Shoal CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Antioch RD over Shoal CR in Clay County, Missouri. It was built in 1978, so it is 47 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,000 vehicles a day, roughly 10% of them trucks, projected to reach 8,000 by 2044. The structure is 158 ft (48.2 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesAntioch RD
CrossesShoal CR
LocationS 18 T 52 N R 32 W
RouteCity Street 0
CountyClay County
StateMissouri
Coordinates39.22869, -94.53461
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating50.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2024)
Projected traffic8,000 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Antioch RD over Shoal CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is Antioch RD over Shoal CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Antioch RD over Shoal CR carry?

About 5,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Antioch RD over Shoal CR?

The structure is 158 ft (48.2 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns Antioch RD over Shoal CR?

It is owned by the City or Municipal Highway Agency.