Blackwater Dam Information (Geography)

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Blackwater Dam and Lake
For the dam and lake in Scotland, see Blackwater Reservoir

Blackwater Dam is a dam in the town of Webster, Merrimack County, New Hampshire.

The earthen dam was constructed in 1941 by the United States Army Corps of Engineers with a height of 69 feet (21 m) and 1,150 feet (350 m) long at its crest. [1] It impounds the Blackwater River for flood control and storm water management as one of five related projects in the Merrimack River basin. [2] The dam is owned and operated by the New England District, North Atlantic Division, Army Corps of Engineers.

The seasonal flood-control reservoir created by the dam has a maximum capacity of 93,400 acre-feet, but is normally dry, apart from the normal flow of the Blackwater. The site includes 8 miles (13 km) of river popular for canoeing and kayaking, and fishing for brown and rainbow trout.


  1. ^ "Archived copy". Archived from the original on 2016-03-06. Retrieved 2012-09-15.CS1 maint: archived copy as title ( link)
  2. ^ "Archived copy". Archived from the original on 2013-02-28. Retrieved 2016-02-06.CS1 maint: archived copy as title ( link)

BLACKWATER DAM Latitude and Longitude:

43°18′58″N 71°43′19″W / 43.31620°N 71.72202°W / 43.31620; -71.72202