EuEEW1492 -1700's European Discovers and Colonists to N America East Coast After Crossing Atlantic


1600's-1700's Rivers and Coastal Waters Provide Transportation, Power for Mills, Triangle Trade


1791-1850's Water as Steam Powered Factories, Boats, Railroads


1790's-1830's Canals and Rivers Transported Settlers, Fur Traders, Adventurers West


1850-Present US Population Rural to Urban and Proportional to Rainfall and Water Availble





1830's+ Great Lakes Influence weather, Provide Water and Navigation for Upper Midwest


1950-2000 Great Lakes Industrialization Result in Pollution Threats and Clean-Up Efforts


1950's St. Lawrence Seaway US Canada Development to Bring Ocean Freight to Inland Ports



1972-89 James Bay CD 3Times Niagara, 8 Times Hoover Hydropower


1830+ Army Corps Engineers (ACE) Control Navigable Coast & Inland Water, Locks, Dams

Mississippi and Misouri, Tennessee Valley Tributaries Drain Center of US

1930's TVA New Deal Project for Southeast Navigation, Power, Irrigation, Economic Revival

1927+ ACE Outlet Added to Levees Only Strategy to Control Mississippi Flooding


1930+ ACE Dredge Florida Inland Waterways, Everglades, Switch to Everglades Restoration


1911+ Groundwater from Vast Ogallala and Other Western Aquifers Become Essential



1940's Great Columbia River Dams and Irrigation, Cheap Hydropower, Flood Control



1869+ Colorado Critical to California & Southwest: Flood Control, Crops, Domestic


Decade Long Drought Leave Lake Mead and Lake Powell at <50% Capacity