San Juan Harbor Maintenance Dredging

San Juan Harbor is located on the north coast of Puerto Rico. It is the island’s principal port, handling over 75 percent of the Commonwealth’s non-petroleum waterborne commerce and is the only harbor on the north coast affording protection in all types of weather. The port is composed of a total of sixteen piers, of which eight are used for passenger ships and eight for cargo ships. The bay and its docks are located along San Antonio Canal, a narrow navigable section of San Juan Bay lying south of Old San Juan and San Juan island, and north and west of the Puerto Rico Convention Center District and Isla Grande Airport. The municipalities of Cataño, Guaynabo and San Juan compose the south side of the bay and port.

CASHMAN was contracted to conduct maintenance dredging from Anchorage Area E to a required depth of 36 feet; Army Terminal Turning Basin to a required depth of 40 feet; Army Terminal Channel to a required depth of 40 feet; Cruise Ship Basin West to a required depth of 36 feet; San Antonio Channel to a required depth of 35 feet (with 2 feet of allowable overdepth throughout), with disposal of all dredged material in the Ocean Dredged Material Disposal Site ~2.2 nautical miles northwest of the Harbor.


  • Incidental work included turbidity monitoring, environmental species monitoring, clearing and grubbing.
  • CASHMAN modified the dredging sequence throughout the project to accommodate San Juan Harbor maritime load and cruise ship operations, minimizing disruptions with no or minimal impact to San Juan Harbor daily operations.
  • CASHMAN received “Exceptional” ratings from the Army Corps of Engineers for Quality, Schedule, Management and Regulatory Compliance.
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USACE, Jacksonville District
$6 Million
Sept. 2016 – July 2017