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Prairie du Sac Dam. The Prairie du Sac Dam is the widest dam on the Wisconsin River [11] and has a generation capacity of about 31 MW. [13] The dam has a hollow concrete structure and is anchored to the sandy riverbed by a pile foundation. The hydroelectric power station is a 330-foot-long (100 m), three story red brick structure at the west ...
It was formed by the construction of the Prairie du Sac Dam, which was begun in 1911 and completed in 1914. It is part of the Wisconsin River system of reservoirs. The lake has a maximum depth of 24 feet (7.3 m). [2] It has an area of 7,197 acres (29.13 km 2). [2]
The lake became nearly empty and the escaping flood water created a new channel for the Wisconsin River about a quarter mile away from the dam. [49] [50] Wisconsin National Guard engineers began repairs on the dam the same day, but with the breach being about 400 feet (120 m) wide, the repairs weren't expected to be completed for over a year. [51]
Prairie du Sac Dam, Lake Wisconsin, Alliant Energy; Radisson Flowage Dam, 45.76093, -91.2025; Rainbow Dam, Rainbow Flowage, Wisconsin Valley Improvement Company; Rapide Croche Lock and Dam, unnamed reservoir on the Fox River, USACE; Red Cedar / Hemlock Lake Dam, 45.58977, -91.60194; Lake Redstone Dam, Lake Redstone, Sauk County
Prairie du Sac was so named because it was in the large Wisconsin River Valley where the Sauk Indians had a large settlement. [7] Although the name of the village dates from the early days of French fur traders, Prairie du Sac was established as a village by D.B. Crocker in 1840, largely as a Yankee-English village, [8] in contrast to its neighbor, Sauk City, which was settled largely by Germans.
Despite this, a 93-mile (150 km) stretch of the Wisconsin between its mouth and the Prairie du Sac Dam is free of any dams or barriers and is relatively free-flowing. In the late 1980s, this portion of the river was designated as a state riverway, and development alongside the river has been limited to preserve its scenic integrity.
Baldwin Hills Dam disaster; Big Bay Dam; Broken Down Dam; Buffalo Creek flood; C. 2017 California floods; Castlewood Dam; Church Rock uranium mill spill; D. Delhi Dam; E.
Downstream of the Prairie du Sac Dam at dam, the Wisconsin is un-dammed for 93 miles (150 km) to its confluence with the Mississippi, one of the longest such stretches in the eastern United States. It is a popular canoe and small craft recreational area. Most of its course is within the Lower Wisconsin State Riverway founded in 1998.