The city engineers keep coming up with new plans for flood detention in Overton Park. The most recent one scraps the high concrete wall around the edge of the zoo lot in favor of a two to four foot high berm (grass) hugging the edge of the high ground around the greensward roughly from the huge magnolias (where the zoo cars currently enter) on east to near the edge of the lake. While this plan will definitely hold more water during heavy rains, it doesn't disrupt the Greensward nearly as badly as their previous plan to dig it out 18 feet deep.
This latest plan leaves almost all the flat part of the Greensward untouched and available for games (the zoo is supposed to returning the soccer goals at long last), picnics, kite flying, etc.
I feel that the above list of activities should no longer include the zoo parking. The city is asking the park to take extra water to protect the zoo and the Belleair neighborhood, and in return, they should return the park to the people. We're still in talks with the engineers, and I hope to have a map to show this plan soon. Watch this space for updates.