The developer commissioned the plan as an alternative to one proposed by the federal government that included 20 foot-high flood protection walls, which one Miami commissioner likened to the Berlin Wall.
Swire commissioned engineering firm Moffatt & Nichol and landscape architect Edsa for their plan.
Oyster reefs would be planted around the berms as an additional flood protection barrier. Some of the berms could be planted with mangroves.
Miami-Dade is expected to decide this week on the cheaper wall plan prepared by the Army Corps of Engineers, or the berm plan, which is likely more expensive.
The Army Corps proposal would cost over $6 billion, with Miami-Dade required to pay 35% of the cost and the rest by the federal government. It’s not clear how much more the private proposal would cost.
Miami-Dade County must verbally approve the plan by February 18 or risk losing federal funding for the project for years.
A waiver to freeze the process could also be sought, but then the county could be required to pay for all additional costs for revised designs as “betterments.”
The Downtown Development Authority also previously came out against the Army Corps of Engineers proposal, and commissioned their own study for an alternative plan.