Baldwin County, Ala. — (GSN) — Limestone barges are currently traveling across Alabama to help restore oyster reefs in Mobile Bay. The effort is part of a major conservation project led by the Alabama Wildlife Federation and its partners. The rock, known as oyster cultch, will provide a hard surface for young oysters to attach and grow. The restoration aims to strengthen marine habitat, improve water quality and support Alabama’s coastal ecosystem.
The latest shipment began its trip in early July 2026 from northwest Alabama and is expected to arrive on the Gulf Coast later this summer. The limestone is destined for oyster reef restoration near Cedar Point in southern Mobile County. Scientists will continue monitoring the restored reefs for years after the material is placed.
Oyster cultch is the hard substrate young oysters need to survive. Without a solid surface, oyster larvae settle in soft mud, where they cannot develop. Limestone has become a preferred material because it provides a durable foundation for new oyster reefs.
The journey begins at a limestone quarry in Tuscumbia. After being loaded onto barges, the rock travels hundreds of miles along the Tennessee and Tombigbee rivers to reach Mobile Bay. Residents along the waterways have watched the barges slowly make their way south…