Road Closure Alert Old Griffin Road from NW 4th Avenue to SR-5/US-1 will be closed by the Florida Department of Transportation around the clock from 9 a.m. Monday, March 27 through 5 p.m. on Friday, March 31 for sheet pile operations. Motorists will be detoured using SR-5/US-1, NW 1st Street, and NW 4th Avenue. The closure is for project improvements including removing and replacing the existing fender system and rehabilitating the existing slope in the southwest corner of the bridge. Please plan your route accordingly and expect delays. Thank you for your understanding and patience.