• Salt Lake County Street Signs - Salt Lake County UT
    Richard R. Lyman was a civil engineer and the vice-chairman of the Utah State Road Commission from 1908-1919. During the 1930s he was a member of an American Society of Civil Engineers commission that developed a grid system for street numbering to make it possible for any traveler to find an address in any city without the help of a map. In June 1936, Salt Lake County adopted the "Lyman System" of designating street names. Instead of the then-current system of designating a street with a name such as "Thirty-third South," the new signs bore the inscription "3300 S". The work...