Another water main break in Jackson is blocking Old Canton Road between I-55 and State Street at East Hill and Grove Park roads. Low water pressure shut down Broad Street and other nearby restaurants and businesses. Numerous homes are affected. Aging cast iron water pipes have been an ongoing problem in Jackson. Many water mains are decades past their projected lifespans. Typically, repairs are made by digging up the pipe and attaching a clamp over the cracked area.