downstream spillway apron
1Hennepin Island tunnel — was a convert|2500|ft|m|sing=on long underground passage in Saint Anthony, Minnesota (now Minneapolis) dug beneath the Mississippi River riverbed between 1868 and 1869 to create a downstream spillway for hydro plants, milling and lumber business… …
2Hydraulic jump — A hydraulic jump is a phenomenon in the science of hydraulics which is frequently observed in open channel flow such as rivers and spillways. When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise (a step or… …
3Saint Anthony Falls — Infobox nrhp | name =St. Anthony Falls Historic District nrhp type =hd caption =Aerial view of Saint Anthony Falls with the upper dam; there is also a lower dam. location= Minneapolis, MN area = built =Apron built 1848 architect= Apron by Ard… …
4Mississippi River — For the river in Canada, see Mississippi River (Ontario). Coordinates: 29°09′04″N 89°15′12″W / 29.15111°N 89.25333°W / …
5glacial landform — ▪ geology Introduction any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… …
