Repurposing Existing State-Owned Borrow Pits

  • 2015

Repurposing Existing State-Owned Borrow Pits

Author:
Cleve Dryden
Abstract:

Since the beginning of the interstate transportation systems design and construction, it was necessary to find materials (earthworks) to construct the nation’s Interstate System. In Florida along I-75, I-95, I-4 and I-10, many of the excavation sites (borrow pits) continue to exist on state-owned lands. Can these borrow pits be repurposed into stormwater management systems? Usually, the pits are constructed with depths exceeding 40 feet. Since ground water fills the pits with water, regulatory agencies are concerned with the ponds turning over and losing the treatment column within the water body. Consequently, is there a way to control or eliminate eutrophication? The impacts of phosphorus and nitrogen into lakes and water bodies have seen lakes turn form freshwater habitat to contaminated holding ponds. This project- seeks to establish methods to control and eliminate this problem.