One of the quiet trends of the past couple of decades has been to create trails along side creeks that are cleaned up and rehabilitated. The trails can be fairly long and interconnected, and used by shoppers, hikers, and runners (the one near me goes along a high school, and some students walk to and from school and sports events by way of the trail). The trails and creeks are also paths by which wildlife can find their way well into suburban and urban housing areas.
I'm not criticizing - I use the trail near me for exercise and training for races - just observing.