Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Shiawassee River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Shiawassee River, the highest being situated at an altitude of ft, the .
The Shiawassee River in the U.S. state of Michigan drains an area of 1,201 square miles (3,110 km2) within Oakland, Genesee, Livingston, Shiawassee, Midland and Saginaw counties. It flows in a generally northerly direction for about 110 miles (180 km) from its source to its confluence with the Tittabawassee River creating the Saginaw River, which drains into the Saginaw Bay of Lake Huron.