Bishop Estates Road Stormwater Improvements, Phases 1 and 2

St. Johns County saw gradual deterioration of four existing culverts crossing Bishop Estates Road along with upstream flooding problems, downstream erosion and sedimentation of the ecologically-sensitive Julington Creek.

This project involved retrofitting a series of four storm outfalls in two phases for the Bishop Estates Road with the following components: replace deep ditches with shallow swales and piped systems, replace cross-drains and size to alleviate flooding, remedy scour and erosion problems and install stormwater treatment units.  The treatment units were equipped with up-flow filters holding special media for targeting and removing nutrients.  A grant was secured with Florida Department of Environmental Protection through the TMDL program for over 50 percent funding of the project.

DRMP’s solutions provided St. Johns County with an improved stormwater system that is safer for the traveling public and better protects the downstream waters of Julington Creek and the St. Johns River.