US Bridges

Antioch LN 069 over Marble CR

Fair

Ralls County, Missouri · S 14 T 56 N R 4 W · Structure no. 14510

Built
1992
33 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Antioch LN 069 over Marble CR is a concrete culvert carrying Antioch LN 069 over Marble CR in Ralls County, Missouri. It was built in 1992, so it is 33 years old, younger 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 5 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 63 by 2043. The structure is 48 ft (14.6 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesAntioch LN 069
CrossesMarble CR
LocationS 14 T 56 N R 4 W
RouteCounty Highway 69
CountyRalls County
StateMissouri
Coordinates39.65614, -91.32261
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span15 ft (4.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic63 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Antioch LN 069 over Marble CR built?

It was built in 1992, making it 33 years old in 2025.

What condition is Antioch LN 069 over Marble 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 June 2024.

How much traffic does Antioch LN 069 over Marble CR carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Antioch LN 069 over Marble CR?

The structure is 48 ft (14.6 m) long with a longest span of 15 ft (4.6 m) and a deck 35 ft wide.

Who owns Antioch LN 069 over Marble CR?

It is owned by the County Highway Agency.