The Bentley Bay Marina project site is located just north of the MacArthur Causeway, within the Biscayne Bay Aquatic Preserve (BBAP), and adjacent to submerged lands that are sovereign. As such, this project was subject to environmental regulatory challenges where new marinas are typically not allowed to be constructed.

Through research of submerged lands ownership and historical use at the project site, as well as extensive negotiations with regulatory agencies, environmental permits from the U.S. Army Corps of Engineers (USACE), Florida Department of Environmental Protection (FDEP) and Miami-Dade County Division of Environmental Resources Management (DERM), were secured for the new marina. In addition to the typical regulatory approvals, an FDEP Sovereign Submerged Lands (SSLL) lease and DERM Marina Operating Permit (MOP) were also secured.

Cummins Cederberg designed the marina utilizing concrete piles, cap and beams with grated decking, as required to allow for adequate light penetration to reach the submerged bottom supporting seagrass habitat.

Structural design of the docks relative to extreme conditions and vessel loads were conducted. Design services also included material selection and coordination of utilities. Construction administration was performed including bidding, inspections, field reports and permit close-out.