Cohas Brook | |
Pushpin Map: | New Hampshire#USA |
Pushpin Map Size: | 250 px |
Subdivision Type1: | Country |
Subdivision Name1: | United States |
Subdivision Type2: | State |
Subdivision Name2: | New Hampshire |
Subdivision Type3: | Counties |
Subdivision Name3: | Rockingham, Hillsborough |
Subdivision Type4: | Towns & cities |
Subdivision Name4: | Auburn, Londonderry, Manchester |
Length: | 16.5miles |
Source1 Location: | Auburn |
Source1 Coordinates: | 42.995°N -71.3272°W |
Source1 Elevation: | 435feet |
Mouth: | Merrimack River |
Mouth Location: | Manchester |
Mouth Coordinates: | 42.9317°N -71.4542°W |
Mouth Elevation: | 108feet |
Tributaries Right: | Outlet of Massabesic Lake |
Cohas Brook is a 16.5adj=midNaNadj=mid[1] river located in southern New Hampshire in the United States. It is a tributary of the Merrimack River, part of the Gulf of Maine watershed.
Cohas Brook rises in Auburn, New Hampshire, north of Calef Pond. The brook follows a winding course westward to the Merrimack River in Manchester. In Manchester it picks up the outlet of Massabesic Lake, the water supply for the city. This lower portion was formerly known as the "Coos River".[2]
Much of the brook's course is quite close to intense suburban development, including Interstate routes 93 and 293, the South Willow Street commercial corridor, and Manchester–Boston Regional Airport.