GARDEN HOMESITES C-4 XP-SWMM Volumetric Analysis

CLIENTS:

MILIAN SWAIN & ASSOCIATES, INC.

LOCATION:

MIAMI-DADE COUNTY, FLORIDA

ESTIMATED PROJECT CONSTRUCTION COST:

$12,000,000

PROJECT DESCRIPTION / SCOPE OF WORK:

Performed XP-SWMM flood control modeling and created a volumetric analysis report utilizing Miami-Dade County Department of Environmental Resource Management (DERM) C-4 existing and future conditions models for the 5, 10, 25, 50 and 100 year storm events.  A total of four scenarios were analyzed including (1) Current conditions as it is today (2) Filling in 4 Acres within the property boundaries (3) Filling in entire property boundaries overlapping the lagoon, or roughly 12 acres, and finally (4) a cumulative scenario of all properties who have fill rights including Garden Homesites to fill in the lagoon within their property boundaries as requested by SFWMD Surface Water Regulation Department in West Palm Beach, FL.  A comparison of hydrographs and tabular results was reported for all 40 XP-SWMM model runs and a final conclusion of a negligible flood stage impact to the C-4 Basin's critical nodes was provided. Some critical nodes examined include the Cities of Sweetwater and Doral located just west of Miami, Florida.