Top Guard Truncated Domes for FDOT E7J89 in St. Petersburg (Pinellas County) October 23, 2015 Posted by on October 23, 2015June 6, 2017 Top Guard black detectable warnings installed +/-14 locations (+/-450 sq.ft.) along Pasadena Avenue in St. Petersburg (Pinellas County). FDOT contract E7J89. Highway Safety Devices as prime, LS Curb as sub.