Laserfiche WebLink
r <br />No evidence has been presented to indicate whether the retaining wa? Is <br />are necessary to stabilize the bank, or whether they are designed and <br />constructed for that purpose. I measured the slope at about 70 <br />percent (19* of drop in a 28* run) which without some stabilization <br />seems quite precarious. The submitted plans do not indicate the depth <br />of the walls or how they are anchored into the hillside. The applicant <br />has give me the impression that these walls are for aesthetic purposes <br />and to help stabilize the stairway and not necessarily the hill. The <br />planter terraces may have some benefit in slowing runoff which <br />otherwise would run right down the hill. On the other hand, will <br />retention and absorption of this runoff in the planter boxes cause <br />saturation of the slope and possible sliding? <br />The City Engineer has reviewed the plan presented and recommends that <br />the owner substantiate the stability of the slope by submitting a <br />report and recommendation from a qualified soils engineer. <br />The rip-rapping done in 1983 appears to have been necessary to stop <br />erosion and undercutting of the banks. Approximately 30* of rip-rap <br />was done, but the remainder appears to be needed as soon as possible. <br />Staff recommends that the applicant be required to submit the bank <br />stability information as recommended by the Engineer. Your <br />recommendation for approval or denial could be conditional on staff <br />review of this information, or you could table the application.