| Pennichuck Brook | |
|---|---|
Supply Pond, part of Pennichuck Brook before the Pennichuck Water Co. dam, near the mouth of the brook at the Merrimack River | |
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| Location | |
| Country | US |
| Physical characteristics | |
| Source | |
| • location | Silver Lake (Hollis, New Hampshire) |
| • elevation | 102 feet (31 m) atHollis, New Hampshire |
| Mouth | |
• location | Merrimack River |
Pennichuck Brook is one of the tributaries of theMerrimack River inNew Hampshire in theUnited States. Its watershed is 31 square miles (80 km2) and is one of the 14 subwatersheds of the Merrimack River. It passes throughNashua andMerrimack, New Hampshire and serves as the public water supply for greater Nashua.[1]
Pennichuck Brook begins atSilver Lake inHollis. It flows northeast underNH 122 and into Dunklee Pond, then continues northeast into Pennichuck Pond, on the boundary between Hollis and Nashua. Leaving Pennichuck Pond, it becomes the boundary between Nashua and the town of Merrimack, flowing northeast under Amherst Street (NH 101A), then turning east and flowing into Holts Pond and Bowers Pond. While part of Bowers Pond, it is crossed by theEverett Turnpike. Past the outlet of Bowers Pond, the brook drops into Harris Pond and Supply Pond, then goes under theDaniel Webster Highway (U.S. Route 3) before it flows into the Merrimack River. All of these water bodies are dammed. The brook runs roughly parallel to theNashua River from Pennichuck Pond to the brook's mouth in Nashua.
42°48′00″N71°28′08″W / 42.80000°N 71.46889°W /42.80000; -71.46889