Top Guard Truncated Domes for FDOT E7J81 Gulf Blvd in Madeira Beach (Pinellas County) March 27, 2017 Posted by on March 27, 2017March 1, 2018 Top Guard black truncated domes installed +/-50 sq.ft. at Gulf Blvd & 153rd Ave in Maderia Beach (Pinellas County). Cone & Graham is prime.