Billions of years of land and water evolution trump our 165 years of water engineering. By using historic maps to trace urban development through time, and overlaying current infrastructure on the land and water history we’ve altered, we can begin to use our technology to restore the nature we’ve altered. Such restoration is critical.
But first we need to understand our geologic history, our history of settlement in the watershed, and the impacts of our settlement and lifestyles. Then we can address the real issues: how to engineer our systems to restore and preserve nature while they sustain us.