Michigan State Route 157 is a short north-south connector highway in Central Roscommon County. It runs from Michigan State Route 18, to Michigan State Route 55, east of Prudenville. MI St Rt 157 does not pass through any towns in Roscommon County. MI St Rt 55 is not multi-plexed in Roscommon County. MI St Rt 55 intersects the following highways in Roscommon County. Michigan State Route 18, near Prudenville. Michigan State Route 55, neaar Prudenville.
A junction marker on SB MI St Rt 18. SB MI St Rt 157 at MI St Rt 18.
