Top Guard Truncated Domes for FDOT E6L15-R0 in Miami Gardens (Miami-Dade County) June 29, 2017 Posted by on June 29, 2017February 5, 2018 Top Guard yellow truncated domes installed +/-100 sq.ft. at 27th Ave &160th St in Miami Gardens (Miami-Dade County). FDOT E6L15-R0 maintenance contract. IMECO is prime.