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Page 2 of 4 <br /> <br />Staff is preparing a resolution ordering a feasibility study for the Arden Oaks Street Improvements <br />for consideration by the City Council at the March 22, 2021 Regular City Council Meeting. The <br />purpose of this memorandum is to provide a general description of the preliminary scope, budget <br />and schedule for the project and seek any direction the Council may wish to provide as staff <br />prepares the feasibility report and recommended special assessment roll. <br /> <br /> <br />Preliminary Scope of Work <br />Existing infrastructure conditions within the proposed project area are as follows: <br />• Streets <br />o Current pavement condition rating is 31 out of a possible score of 100. The surface <br />of the streets is in poor condition covered in an extensive amount of cracking. These <br />streets have seen an increase in needs for pothole filling and patching, therefore <br />increasing the cost to maintain. <br />o Core samples from the Pavement Forensic Report (Attachment C) resulted in varied <br />conditions from good to poor but ultimately a majority of the cores were showing <br />signs of deterioration. <br />• Sanitary <br />o Sewer was installed in 1982 as part of the residential development. 8-inch PVC <br />material was used, and through televising reports, it is in good condition. <br />o Manhole castings and concrete rings are deteriorating and need repair. <br />• Water <br />o Water main was installed in 1982 as part of the residential development. 6-inch <br />ductile iron pipe was used and this area shows no history of main breaks. <br />• Storm Drainage <br />o Storm catch basin structures are deteriorating and need repair. <br />o Storm sewer pipe needs to be televised to report condition. <br />o Curb and gutter is generally in good condition but spot replacement is needed in <br />some areas. <br />o The southern curb line along Arden Oaks Drive off Snelling Ave to the cul-de-sac <br />has a noticeable sag, indicating poor subsurface drainage or in need of soil <br />correction. <br />Additional research regarding the age and condition of existing infrastructure will be evaluated <br />during preparation of the feasibility report. Based on the previous information stated, staff <br />anticipates the project will include the following elements: <br /> Arden Oaks Drive (From Snelling east 400 feet including cul-de-sac): Full depth <br />reconstruction of streets with installation of curb, gutter and storm sewer, producing a street <br />width of 32 feet. Existing ductile iron water main and PVC sanitary sewer to remain in-place.