In an effort to prepare residents for hurricane season before storms arrive, St. Johns County will give away 12,000 pre-made sandbags Wednesday, July 31, from 9 a.m. to 1 p.m.The bags will be available at the following six locations throughout the county:• Palm Valley Bridge, under the bridge on the east side of the Intracoastal Waterway;• Mills Field, 1805 Racetrack Ro...