 In the second quarter of 1941, US 319 was designated on SR 35/SR 133 south of Moultrie and on all of SR 33 north of Moultrie.Between January 1945 and November 1946, US 319 was shifted eastward, off of SR 33, and onto SR 35.Between September 1953 and June 1954, the entire extension of SR 133, from Boston to Moultrie, was hard surfaced.