Not only would this help with the streams of urine, dog feces, motor oil infested riffles of water coursing down every available surface when it rains – it looks quite nice too and would provide a LOT more light to grow plants than my current situation. How much do I want a sidewalk garden now!?
Found this great list of plants that will love growing in your San Francisco parklet, sidewalk garden or balcony! http://bit.ly/gelOOv
I will come to your neighborhood to help you build one, or let me know if you live near Western Addition/Divisadero. There are a lot of candidate corners over here!