It needs to be fixed. Reporter and again. The sidewalk is sinking or the buildings are going up. Reporter the sidewalks are singing, you can see the gaps at just about every single seat corner. Its more complex than putting in cement on the cyber. Reporter Rachel Gordon is with the Public Works Department at San Francisco, she says the problem was predicted when the neighborhood was envisioned. The bay is built on a landfill. We knew going in, it used to be the old rail yards. It is made on landfill. We knew there would be settling. Reporter it is up to the Building Owner to flip the bill to shore up the sidewalk. It i joked its like venice. Because, you know, it really could just be water around all of these buildings. Reporter Jennifer Smith stolen is the Vice President of operations at mercy housing. She says for longterm the nonprofit cannot afford to continue to pay for this. The fixing in the amount of money we have available to make the fixing is really not going to add up. Repo