06/14/1990 CONSERVATION COMMISSION Minutes

Home Browse Search

i r Conservation Comisison Jure 1 , 1990 Page 5. 9:15 HERBERT & NANCY BEIBEL for a new guest house, deck modification, new garage, septic system, swimming pools, paving, walls,,. wooden footbridge, boardwalks, drainage, fencing, rock outcropping, putting green, plantings, driveway and sod lawns at 129 Greensward Road, Al Abrahamson presenting. There are five lots, two houses- and a wetland in the center. The Beigels reside in one house, the other is an in-law residence. There is a 20 foot drainage easement between the second and third lots connecting to a pipe, on early USGS maps it shows as a depression but not as a wet area. Borings of trees in the area, red maples, indicated they are 25 years old. Previous to 1963, it probably was a damp area; not with standing water, Jim Ingram advised the trees were secondary growth; the initial trees on the site were out at some point. Mr, Abrahamson stated a road on the property was used as an access point for maintenance on the golf course; not a legal access, it has just been used because previously no one owned the parcel . The rest of the site is heavily vegetated; there is no existing sod grass on the lots, there is rough grass bordering the golf course. There is a 50 foot golf easement throughout the back of all five lots. There will be a parking court, Bi rveays will be obliterated and reeg etat . A garage will be built. Three pools will be constructed on two separate levels with rock outcropping to be imported from Hopkinton, There will be a 6 foot grade differential with a rock slide and waterfall . Dra i nage from the area will be picked up into a surface system and put into leaching pits. The pool will have an ozone system. The cabana will be a but type structure with several flat roofs. There will be no roof water as on the back side, facing the wetland, them will be some drippage which will be picked up in a stone trench all around. The 35 foot setback lire is only violated in one spot. It is 18 feet between the edge of the wetland and outside edge of the retaining wall . They will not be destroying any vegetation. Trees on the inside of the roadway, because of the grading, swimming pools and structure, will have to go except for the white oak they are saving. Ms B hr an questioned lot coverage and was told the driveway will be of crushed store, walkways will be 3 feet wide and whatever the limit is, they are under it. Because of the golf course easement and topographical features, there is no way to go from A to B without crossing the site. They designed an elevated boardwalk going from on-e side of the wetland edge to the other side of the wetland edge. Elevations are beneath the water levels which are 11 .9 with a mucky -bottom. A bridge is detailed on sheet10; B -- 15 foot spans with pile supports to be constructed by hand. Access for this is an area of old construction way which wi l l be uti l ized. They will be replicating the area the wary it should have been in the first place. Because it is not pristine, ie original , they would like to add some wetland materials that should have been them, creating a white cedar swamp. There is a walkway going around the wetland. They would be going inside the wetland edge in two spots. Mr. Sherman asked how far above the water the boardwalk isand was told the elevation is 14.5, actual water level is 11 .9. It will be 2 - 3 feet depending upon the level of the water. It will be the sane height over the vegetation. Because it is heavily vegetated, they will not take down any trees so there may be more of a meandering nature than shown.