The Stony Brook cuts through the Mount Holyoke College campus and is dammed very often. It also runs into Granby a bit and there it is called Muddy Brook. There is also the Stony Brook Tributary along Kendrick Street. It once had a dam – the Kendrick Street Dam which held back the Kendrick Street Reservoir – but it is not there any more.
| code | name | location | served | type | year |
| 1a | Upper Pond Dam | Upper Pond | Smith’s Paper Mill | medium concrete | |
| 1b | Willits Hallowell Dam | Willits Hallowell Pond | small concrete | ||
| 1c | Lower Pond Dam | Lower Pond | medium concrete | ||
| 1d | Mill Dam | Mill Pond | small concrete | ||
| 1e | Barrett’s Butting Mill Dam | Barrett’s Butting Mill Reservoir |