This morning I ran South along Riverside to the outdoor gym around 53rd street. On a whim, I scrambled down the steep bank to a ditch that runs parallel to the river. It runs between the bank and a large scrub covered dune, collecting water from concrete pipes that drain the neighborhoods just East of Riverside. The place is quite beautiful if you ignore all the trash that has been deposited from the heavy rains. Riverside is just a few hundred feet away, but this place feels remote.
Here is an example of one of the flood control outlets.
The bank has slowly eroded around this structure so they've had to reinforce it with some pilings. The pilings themselves are decaying, so this may be gone in the next flood.
If you follow the ditch South, a nice view of Turkey opens up. I'd like to come back here with my DSLR sometime.