was rebuilt to Interstate standards in stages. The first freeway segment completed was a stretch in Arenac County from US 23 just southwest of Standish to Alger. In 1970, two more segments of the M-76 freeway were completed: from Alger to just south of West Branch and about of freeway from the southern end of a completed segment of I-75 south of Grayling to just west of Roscommon. In 1971, both the northern and southern sections of the M-76 freeway were extended: on the south, around the west side of West Branch to M-55, or from present-day exits 212 to 215; and on the north, on the west side of Roscommon, from present-day exits 244 to 239. In 1973, the final segment of M-76 freeway was completed. However, the entire M-76 designation was decommissioned and that segment of freeway opened as I-75. This was the final segment of I-75 to be completed in the state of Michigan. As segments of the freeway were completed, the former portions of M-76 were turned over to local control, except for portions near Roscommon and West Branch, which became parts of Business Loop I-75 designations. There are several places where these old portions are referred to as "Old 76". The route from southeast of West Branch to the Ogemaw County line was designated as County Road F-9, and a portion through the community of St. Helen is part of F-97. The segment of old M-55/M-76 is an unsigned state highway. Major intersections Business loop Business M-76 (Bus. M-76) was a business loop running through West Branch that is now called Business Loop I-75 (BL I-75). The highway used a portion of the former M-76 and the current M-55. The southernmost portion from the Cook Road interchange at I-75 to OLD M-76 (Alger Road) was built as a new roadway in 1970. This section was built when the I-75/M-76 freeway was completed as far north as Cook Road. This new roadway allowed M-76 to connect to its former alignment south of West Branch in 1970. The next year, the I-75/M-76 freeway was completed to the current interchange with M-55 west of town. The former routing of M-76 along Cook Road, Alger Road and M-55 was redesignated as Bus. M-76. When the last section of I-75 was completed in 1973, connecting the end of the freeway at M-55 with the other end at M-18 near Roscommon,