pf_00421 - Laserfiche WebLink

Home

� I� � ,� � rPport. Di�trict 6W Trunk Storni Sewers: District 6W is a part of District 6 in Roseville comprising a to�al of 1835 acres which dr�ins in the northerly direr_tion to Lake Johanna primarily through County Ditch No. 4. Primary considerations for storm sewers within tnis district involve both the past performance af County Ditch �4 within the developed area north of Bruce Avenue and the anticipated future performance in view of the increased runoff anticipat�d fram tt�ie Allied Stores development area. The 1962 storm sewer report indicated that the area adjacent to Herschel Avenue and Wheeler Avenue from south of Oakcrest Avenue to Rose Place floods and washes severel�y after any rainfall of consequence. This sizuation will worsen with the development of the Allied Stores property and with the resulting increase of �runoff. In 1963 i�amsey County improved County Rnad "C" west of Snelling Avenue. As a paxt of this im- provement and at the cost of the Vil�.age a;�8 inch I��-Hed reinforced concrete culvert was placed beneath County Road "C" to convey County T�i��h ��4 storm drainage. The proposed location and diameters of the stor� sewer to serve that part of District 6W frnm Bruce Avenue to County Road "C" is shown on Drawing No. 9 and on Dr�wing No. 10. The location indicated� on these drawings va�ies to a minor degree from the location proposed in the Mast�r Plan Report. This variati.on is in the ar�a nQ_rth of 4al�crest where it is now proposed to con- struct the storm sewer along the existing alig�nent of County Ditch d�4 at tFie rear lot line beiween �lheeler Avenue and Herschel Avenue. The Master Plan indicated the location to be on Tdiieeler Avenue�north of Oakcrest. �iowever, it is anticipated that in this location conflicts between sanitary sewer services and the storm sewer may be encountered. This could be av�oided by zhe rear lot line 'tocation of the storm sewer. This proposed location on i�he rear lot line taa�ween �Iheeler Avenue and HPrschel Avenue has certain probl�ms relative to site confinement because of �xistimg power service poles, fences and same shrubbery. It is felt �iat these '`'� s probler�s are not insurmouatable and that the end result will permit a ver,� desirable grading oi the existing ditch area so that the properties will blend in with a natural contour of ona � to Che other. Also it is proposed that manholes along this ditch line be pravided with catch ,� _ -_ - 14 - ��5 �