Sink holes at 23rd St. and 6th Ave. Call 3-1-1

These sink holes which are peppering the streets of the Slope, Windsor Terrace, Greenwood Heights, etc. are the residue of a huge project in the late '80s to replace all the 19th century sewers in that part of Brooklyn. The standard practice at the time was to just fill in the excavation after the new pipes were laid leaving in place the wooden shoring. 20-30 years later the wood is rotting out leaving empty spaces underground which then cave in due to traffic pressures above. The only way to correct the problem completely is to open up the street, pull out the rotting timbers & refill. This was done on my street in Sunset Park 8 years ago, but there is probably not the money to do that now. So the city just fills one by one as they develope. Keep calling 311. It took our block 2 years to get problem permanently solved.