SKETCH

1,2 HOLE Once, the Mill Creek was flowing in the West Philadelphia. It was clean. People used it not spoiling or changing water.

8 HOLE People started to contaminate water and to forget the importance of water. Finally, people built a huge sewer system to put the Mill Creek under the ground. The Mill Creek went out of sight.

10 HOLE The population of Mill Creek had continued to increase including large African-American Migration.

11 HOLE People had forgotten the existence of flowing water

12 HOLE Forgotten water revealed its existence in negative way

13 HOLE Because of collapse, the Mill Creek neighborhood began to decline. Goverment took responsibility for housing. Low income housing projects including Louis Kahn's Housing Project developed to induce people to remain in the city.

15,16,17,18 HOLE People reminded that water was flowing under the ground. People tried to start urban renewal efforts including Economic Suburbanization, Wave of Green and Revealing Water.