Rochester has an extensive parks system, the largest of which are Silver Lake and Soldiers Field in the central part of the city. A major flood in 1978 led the city to embark on an expensive and successful flood-control project that involved altering many nearby rivers and streams. The Zumbro river flowing through the center of the city is presently being readdressed for increased development and use as part of city planning in conjunction with funding from the Destination Medical Center project.