Today our gravel business has expanded to encompass two wash-plant locations, a Bluestone quarry, a contract crushing operation, a full time delivery fleet and 8 locations. Seward Sand & Gravel Inc bulldozer and dump truck has grown to include many pieces of equipment, Dump trucks, Tractor Trailers and an excavation team. There are many benefits to buying sand and gravel in Oneonta instead of purchasing it piecemeal, such as buying it one bag at a time until you have all the gravel you need. Let’s take a closer look. Address : 532 Co Rd 58, Oneonta NY 13820 Phone : 607-432-1653 Business Hours : Monday-Friday 7am – 4pm; Saturday 7am – 12pm; Sun Closed