Planning Board minutes 050119 - Laserfiche WebLink

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Approved 7/5/19 495 Patricia Roberts: If you have a lot of pervious ground, then you are not going to need as much as you think. You’ve 496 got the natural way for water to be a absorbed into the ground and you’re just trying to take over probably what you 497 have made impervious. The tradeoff, I would rather have more trees. 498 499 Tim Smith: With the one inch, they also call it water quality also. They call it the first flush. That first hard one inch 500 of rain hits all the pavement areas where all the nasty stuff is and that’s what runs off first and that’s what we’re 501 required to treat first for nutrients and water quality. 502 503 Kim Piracci: Is the impervious, pervious areas taken into consideration when you decide how much?504 505 Tim Smith: the project as a whole, we’re very low on total amount of impervious. The allowed maximum for this 506 property is 36 percent and we’re only proposing about 17 percent. 507 508 Kim Piracci: What would happen if you made 15 units instead of 20; would you then still have the cut down as many 509 trees? 510 511 Tim Smith: Potentially not, but that’s all a balance of everything else we’ve talked about. 512 513 Patrick Mallett: The way this typically works for a single-family residential subdivision is it’s a bit of a calculated right 514 sizing in terms of runoff and stormwater. Looking back at the layout. You want to put your open space and the 515 devices in the right place and then routing stormwater that would go through ditches into pipes. A big part of their 516 design and a analysis is to locate them in the right place, right size them, and assume that they built it and designed 517 it and located it appropriate for the initial clearing, the initial impervious to carry the freight for the public roads, and 518 then assume a theoretical clearing and an impervious amount for each of the lots. Part of the analysis is to factor in 519 the impervious water quality, water quantity and then the rate of runoff. 520 521 Jim Ray: My name is Jim Ray. I’m Occoneechee Golf Club. We were the ones going to get the water. I just want 522 to ask Tim how much more water are we actually going to get then we’re getting now? If you can get the state to 523 build a culvert the first one west of where you all going to build, that would solve a whole lot of our problem. 524 525 Tim Smith: It’s hard to say. The intent is always in following the guidelines that we have the follow. To keep it 526 basically as it was before the development was there. 527 528 Jim Ray: That’s too much.529 530 Tim Smith: The numbers that we are required to adhere to are no more post development than predevelopment. 531 532 Jim Ray: I’m not against the development, but I would like to have as much help as we can to stop the water. 533 The left turn lane, how much more pavement is going on our side of the road and where is the ditch line going to be 534 then?535 536 Tim Smith: We don’t have the final design. We’re doing a proposed symmetrical widening. On your side right now,537 the pavement will get about three feet wider than where it is right now. If it looks like it’s going to be a problem on 538 your side of the road, we can shift the widening to be more on the project side with less impact on your side so we’re 539 not having to push ditches and that sort of thing.540 541 Jim Ray: We don’t need to lose anymore property.542 543 Tim Smith: Everything we do has to be within DOT’s right of way. It’s not going to be on your property. Hearing your 544 concern, we want to keep everything we can away from you. 545 546 Zelda Lockhart: Good evening, I would like to read a letter that I’d like to have entered into the public record. Ms. 547 Lockhart read her letter to the public.548 549