Travelers are voting Wachusett Reservoir as the best dam near Ashburnham. There are 2 dams near Clinton a city just 30 km from Ashburnham and 2 dams near Shrewsbury which is 34 km distant. The most popular of these are Wachusett Reservoir near Clinton and Quabbin Reservoir in Shrewsbury. You can find 2 dams in Massachusetts and 138 dams in the country of United States. Our members favorite in Massachusetts is Wachusett Reservoir and Hoover Dam is the top pick in United States. Want more? Check out our map of dams near Ashburnham.