Top Guard Truncated Domes for FDOT T3478 in Tallahassee (Leon County) March 17, 2015 emunoz Posted by emunoz on March 17, 2015June 6, 2017 Top Guard detectable warnings installed +/-450 sq.ft. along SR 61 from Woodbine Dr. to Live Oak Plantation in Tallahassee (Leon County). FDOT contract T3478. CW Roberts as prime.