and our supervisors on this from the san francisco tenants union to the affordable housing alliance, ccdc, to the housing rights committee, the tenderloin housing clinic, just cause, and many other organizations that have been passionate on this topic and have really helped to shape i think many of our thinking on it. i also want to take a moment and thank supervisor farrell for his leadership as well as the tic owners and representatives at the real estate community. i believe that they have worked in good faith in the discussions that we've had in recent weeks and i do look forward to the discussion we'll have today as well as in the coming weeks on this. and i want to also thank supervisor yee for the work that he and his staff had done with my aide judson true and i to move this forward and i also should thank our city attorney john malmud who has spent many, many weeks and many, many hours particularly over this weekend in getting the amendments that we have in front of us today. so, as far as sort of a high level on what it is we are trying to achieve with these amendments, as i've

once they deteriorate to a certain point -- ccdc development commission addresses the use of the bay and the fill of the bay. will they let you rebuild these things after they fall apart? >> well, if there is a viable use. you know, if we have an illinois bridge, for example, that's a pile supported structure over water and so we were able to get a permit for that. but in general, lawrence is right that there are incredible constraints on allowance for fill. so in fact, this is the situation where the port would be looking at fill credits. if degraded it should be taken out. but it is not going to be taken out before there is a need for it because what you want to be able to do is, whatever. if there is another illinois bridge modification that needs to be done and it requires some fill, there is a fill mitigation requirement that the bcdc will typically look at and you will want to be able to take credit for taking out areas like this that are no longer serviceable. >> a couple other things i want to mention about this. first of all, you see a concrete slab there that is sloping and