2004-07-02 TDJSMLL - Laserfiche WebLink

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before you are talking, I hear this, my calculation is showing me its over-topping the curb, its going into peoples driveway. And its going to do the same at this proposed project site, and its coming into the driveway. All, what I did is I make sure it doesnt go in the building, but it will flow in the parking lot. Itll be caught by drywells, but the excess will continue to flow down. To answer your question about how fast the water is coming out of the 24, because the 24-inch pipe at 1.5 percent slope, its coming out at a velocity pretty much the same as what it is now. And the majority of the water, becausethe majority of water when theres a big event, its flowing around the corner. Its not going -. Well, if I show it with this, if this is the wall, if the pipe is here, the ground is a little bit higher on this corner. So the water will pond up and the water will be flowing into the pipe, but at the same time its overflowing, too. Okay? And when there is a larger than, say, like 10-year, 50-year or 100-year storm, the water on the major stream is already up here, its already, itll be a lake.Thatswhatthefloodplaintellsyou,youreseeingalakeinthere.Andyoudont see the type, you dont see, the wall will be, you know, instead of 3, 4 feet, its finally few inches high, thats all you see. And thats all, its actually like so, because the ground is very gentle in this area. MOORE:And keep in mind as part of the flood study all of this water was accommodated or calculated as part of the Palai Stream, which is calculated into the specific entry point. So weve already accommodated for that water within the flood zone, flood area. And the drainage study accommodates how can we make it through the property or through it natural courses to get to where it naturally goes; and thats what the drainage study does. And, again, both of those have been approved. SPRINGER:Commissioners, any other questions? ALAMEDA:I have another question. SPRINGER:Commissioner Alameda. ALAMEDA:Thank you. At the site I noticed the culvert and the maintenance of it, you know, I dont know where it came out actually. I was just guessing that it was coming to the pond. For this particular culvert, who would be responsible for the maintenance? GOMES:The County maintains that portion within the right-of-way; and the outlet side or the side the water comes out from, its actually the Mormon Church property. So I think what we need to do is send them a letter to tell them to clean out that drainage way. ALAMEDA:And then this particular culvert that is being proposed, who would maintain the out part of that? Would that be the Applicant? 27