AH-WR-0670

Hydro Atlantic

Hopper Dredge · United States · Lost 1987 · Florida's Atlantic Coast

An 1905-built Army Corps dredge that sank while under tow to the scrapyard, becoming a deep technical wreck off Boca Raton.

Become Captain of RecordSee Shipwreck on Map
Artistic impression of the Hydro Atlantic
Artistic recreation based on recorded historical documents. See the documented evidence.
Engraved line drawing of the Hydro Atlantic
Historically Reconstructed. Drawn from partial documentation of this vessel together with her known class and configuration. See the documented evidence.

The Vessel and Her Loss

Built in 1905 for the U.S. Army Corps of Engineers as the hopper dredge Delaware, the vessel worked river and harbor projects for decades and was rebuilt in 1961 to increase capacity. Sold multiple times and renamed Hydro Atlantic by 1968, she was ultimately condemned for scrap. While under tow to a Texas scrapyard in December 1987, her old hull gave way and she sank off Boca Raton before ever reaching the breakers. She now lies deep, largely intact, and is regarded as a demanding technical dive.

Vessel

Built
1905
Registry
Official number 260377
Builder
Maryland Steel Company
Yard
Sparrows Point, Maryland
Material
Steel
Length
300 ft
Beam
64 ft
Tonnage
Not established
Propulsion
Twin-screw diesel-electric
Owners
U.S. Army Corps of Engineers (originally); Hydromar Corporation (at loss)

Loss

Date
December 7, 1987
Cause
Mechanical failure
Location
About 1 mile east of Boca Raton Inlet, Florida
Water
Atlantic Ocean
Voyage
Brownsville, Texas (scrapyard)
Cargo
Not established
Aboard
0
Lives lost
0
Master
Not established

The Wreck Today

Depth
120-175
Condition
Upright, bow pointing south, with collapsed aft superstructure; considered a technical dive.
Orientation
Upright
Discovered
Not established
Protection
Not established

Position

Coordinates
26.32° N 80.05° W
Accuracy
Approximate position
Nearest
Boca Raton, Florida

Evidence

Overall confidence: Documented (82/100)

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