I called this in following the last tropical storm. A barricade was placed to cover the 18" round hole. It seems to be undermined by sewer system. I have had several issues with the sanatation drivers running over the barricade, tossing them aside and not placing back over the hole. One occasion the barricade was left behind my 35week pregnant wife's car for her to move. I have been in contact with sanatation department 3 times. In a effort to help I have filled the hole with cement. I would have expected this to have taken place by the city and not the residents whom are impacted by city employees not respecting the barricade in place to prevent injury and promote public safety. I will add the problem above is further compounded by a long running issue with a derelict boat parked behind a neighboring home creating a narrow passage in the ally way in this exact area. Codes compliance has been active with this boat for over a year now. The boat has not axels under the trailer, is not able to be moved, no motor, no FL numbers ect. The owner is using the boat for storage of junk / scrap materials. I urge you to please help me out.