Edward Medard Reservoir, Plant City: The Mine That Became the Park

The 770-acre lake east of Brandon started as a hole. Draglines worked the ground here in the 1960s, stripping phosphate out of the earth on Turkey Creek Road south of Plant City. What they left was the shape of any worked-out mine — a pit, spoil banks, exposed ground. In 1970 the pit was impounded, water was allowed to fill it, and the flooded mine became a reservoir. Two years later, under agreement with the water management district, Hillsborough County developed the site into one of its largest regional parks. Today it draws about 250,000 visitors a year.

Polk and Hillsborough counties sit over some of the richest phosphate deposits in the country, and mining left thousands of acres of altered ground across the region — pits, settling ponds, spoil piles. Some of it stayed scarred for decades. Mined in the 1960s, diked in 1970, opened as a park two years later: the turnaround here from active mine to public reservoir was fast by any measure.

The reservoir carried an earlier name — Pleasant Grove Reservoir — and the park did too, before both were renamed for Edward Medard. The dam that holds the water back is an earthen structure at Pleasant Grove. It is the reason the lake exists as a lake and not a slow-draining pit. Everything downstream of that dike — the fishing and boating — depends on the 1970 decision to hold the water in place.