Background: Approximately twenty-five years ago, RIDOT stopped using granite curbing as a. standard, with the exception of bridge projects. The primary motivation was cost, as precast. concrete, the replacement, was cheaper to purchase and install.
Longest damage path and duration: The Tri-State Tornado. The longest recorded tornado journey in U.S. history was the Tri-State Tornado of 1925, which traveled almost 220 miles across southeastern Missouri, southern Illinois, and southwestern Indiana during its 3.5-hour life. The average tornado travels about 5 miles.
A damaging tornado occurred in Madison and Bond counties in southwest Illinois, starting about 615 pm in Madison County just east of New Douglas and moving east into Bond County. This tornado has an almost continuous damage path of nearly 6 miles and a maximum width of 150 yards.