In Michigan the maximum speed limit is posted on freeways at 70 mph (113 km/h). Freeways are usually signed with both minimum and maximum speeds. Interstate speeds for passenger vehicles range from 55 mph (89 km/h) to 70 mph (113 km/h). Interstate speeds for trucks and military vehicles is 60 mph (97 km/h).
Michigan has permitted 65 mph (105 km/h) speed limits on some rural, divided non-limited access highways. A 20-mile stretch of US 127 between St. Johns and Ithaca, was posted at 65 mph (105 km/h). The speed limit on US 2 between Rapid River and Gladstone in the Upper Peninsula is posted at 65 mph (105 km/h).
In contruction areas, if workers are present, then the speed limit is 45 mph (72 km/h).
I-75 crosses into Detroit at M-102 (8 Mile Road, exit 59) and maintains a 70 mph (113 km/h) limit all the way until the interchange with I-94 (exit 53). I-75 northbound maintains a 70 mph (113 km/h) limit for three miles in Detroit over the Rouge River Bridge and to the Livernois exit (exit 46). I-96 has an express–local configuration with a 70 / 55 mph (113 / 89 km/h) split from US 24 (Telegraph Road, exit 179) to M-8 (Davison Freeway, exit 187), where the express lanes end and the freeway has a 70 mph (113 km/h) limit. I-94 heading west, however, drops from 70 mph (113 km/h) to 55 mph (89 km/h) just before the 9 Mile Road interchange (exit 227), traveling three more miles through St. Clair Shores, Eastpointe, and Harper Woods, before entering Detroit.