 As a free road, the first five miles (8 km) of that section of I-35 were opened to traffic in 1958 from US-177 near Braman north to the Kansas border where it continued as the Kansas Turnpike.This was followed by completion of the entire route from Oklahoma City northward to Braman by 1963 in several phases including Edmond to Guthrie in 1960, Guthrie to Perry in 1961, Perry to Blackwell in 1962 and Blackwell to Braman in early 1963.To the south of Oklahoma City, I-35 was completed through Norman south to Purcell in June 1959.