Top Guard Truncated Domes for FDOT T6376 in Miami (Miami-Dade County) April 11, 2016 Posted by on April 11, 2016June 13, 2017 Top Guard yellow detectable warnings installed +/-139 locations (+/-1280 sq.ft.) in Miami (Miami-Dade County). FDOT contract T6376. Community Asphalt as prime.