CCP 11-12-1996 - Laserfiche WebLink

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I It is proposed to reconstruct Colleen Avenue, Colleen Circle, and Norma Avenue using bituminous reclamation, salvaging most of the existing concrete curb and gutter. In this process, the existing bituminous pavement would be pulverized and mixed with the underlying aggregate base, This material would be salvaged and used in lieu of imported aggregate base, The street I widths would remain 33 feet, and the existing surmountable curb would be left in place or repaired if necessary. James A venue would be reconstructed to the City of Arden Hills standard street width of 32 feet, as measured from curbface to curbface. The existing bituminous and I surmountable curb would be replaced with B618 concrete curb and gutter. Where necessary, the streets would be subcut and select granular borrow and draintile would be installed, as required by subsurface soil conditions. The proposed improvements are shown in Exhibit 3 and the I existing soil conditions are presented in the American Engineering Testing report enclosed as Appendix B. The storm sewer and other utilities would be upgraded as needed, based upon Public I Works input and information obtained from the public meeting. Two potential sanitary sewer problems on Colleen A venue were identified in the 1996 I Comprehensive Sewer Study, These are both located in the same general area of Colleen Avenue between James Avenue and Hamline Avenue. The sanitary sewer concerns stem from a high water table (which could be a source of infiltration and inflow) and plugging potential. Further I analysis of these concerns will be coordinated between the engineer and the Public Works staff, as the City may desire to make repairs while the street is under construction. It The costs associated with these streets are included in the Project Costs portion of this report. Zone 4 Street Improvements I As previously indicated, two streets from Zone 4 have also been included in the 1997 Street I Reconstruction and Maintenance Improvements. These are the Hamline A venue and Snelling A venue service roads located near the intersections of County Road E with Snelling and Hamline A venues. Both streets serve a small number of homes, and are the only access to their respective I areas. They also present special problems in that they are not currently built to City standards, each has assessable front footage on only one side of the street, and the existing right-of-way widths limit substantial geometric improvements without additional right-of-way acquisition. The I City and the State are currently considering a turnback of 33 feet of right-of-way at Hamline Avenue. The Snelling Avenue right-of-way is unresolved at this time. Additional right-of-way issues will be addressed at the public hearing.. I Hamline Avenue I The Hamline Avenue service road is a dead-end street running north from County Road E to the Soo Line Railroad tracks. It is 890 feet long by 23 feet wide and runs along the top of the TH , 51 embankment providing access to seven homes on the west side of the highway. The service road is in very poor condition, having a 1995 PCI rating of only 47. Its surface contains extensive amounts of moderate severity longitudinal and transverse cracking and has already been patched f' in numerous places. It currently has a shallow bituminous curb and drains toward the railroad easement to the north and toward County Road E to the south. The service road has within its right-of-way an 8-inch sanitary sewer and a watermain that varies from 6-inch DIP in the north , FEAS-520.080 -7- 520-080-10