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.
The Bridge Creek-Moore tornado outside of Oklahoma City on May 3, 1999 still holds the records for the fastest winds ever recorded just above the surface of the earth at 301mph. The tornado destroyed 8,132 homes, 1,041 apartments, and 260 businesses. It remains on of the costliest single tornadoes on record.