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.
exists and is an alternate of . Officially the largest tornado ever recorded was the El Reno, Oklahoma tornado of May 31, 2013. It was 2.6 miles (4.2 kilometers) wide. Analysis shows a damage swath on the ground that was nearly as wide.