US Bridges

Amarugia over Black CR

FairPosted for load

Cass County, Missouri · S 33 T 43 N R 32 W · Structure no. 24670

Built
1940
85 years old
Condition
Fair
inspected April 2023
Type
Truss - Thru
Steel
Length
36 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Amarugia over Black CR is a steel truss - thru carrying Amarugia over Black CR in Cass County, Missouri. It was built in 1940, so it is 85 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 5% of them trucks, projected to reach 56 by 2044. The structure is 36 ft (11 m) long and 14 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesAmarugia
CrossesBlack CR
LocationS 33 T 43 N R 32 W
RouteCounty Highway 529
CountyCass County
StateMissouri
Coordinates38.47683, -94.45567
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.8 US tons
Inventory rating13.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic56 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Amarugia over Black CR built?

It was built in 1940, making it 85 years old in 2025.

What condition is Amarugia over Black 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 April 2023.

How much traffic does Amarugia over Black CR carry?

About 35 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Amarugia over Black CR?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 14 ft wide.

Who owns Amarugia over Black CR?

It is owned by the County Highway Agency.