1212 GRAND AVE 2016-01-01 MF Import

March 31, 2008 Mr. Paul Tessier L&A Job No. 8A027 Pagc I S maintained and damages to the structure minimized. Factors affecting mquired setback of the proposed duplex building from the crest of adjacent steep slope include: geological constraints (such as soil and hydrological conditions) of the site, hazard from development to subject property and surrounding properties/right-of-ways, impact of construction method and technique on critical areas, mitigation of impacts on critical areas, impact of utility installation and roadway construction on gcologically hazardous areas, ctc. The subjcct site is undedain by dense silty sand and hard fine sandy silt of high shear sVength with high resistance against slope failures. Thereforc, geological restraints of the site which may impact the stabiliry of the adjacent steep slopc are either non-existent or can be minimized to an acceptable Ievcl of risk if thc recommcndations in this report are fully implemented and observed. The vegetation covcr on the stccp slope should be preserved and not to be disturbed. Site grading, grading of the driveway, and building footprint excavation for the developmcnt of the additions and new garage will be achieved with wmentional earthwork equipment. [f the recom�nendalions in lhis rcport are followcd during grading work, the construction method and techniquc should have IitUe impact on thc stability of the adjacent steep slope. Since the driveway and utility lines will approach thc additions and new garage from the stmet side away from the adjacent stcep slope, driveway construclion and utilily installation should also have minimal impact on thc stability of the adjacent stecp slo�x. To maintain lhc stability of thc adjaccnt steep sloEx, the additions and new gazage to be constructed on thc site should be suf7icienQy setback trom the crost of the slope of gradient 40% or more. It is our opinion that if the additions and new garage are set back at least 15 feet from the top of adjacent steep slopc and are no closer to the top of stcep slope than the existing house is, thc additions and new gar�gc should be able to maintain long-tertn stability. LIU & ASSOCIATES, INC.