CCP 11-12-2002 - Laserfiche WebLink

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- Hamline A venue Vacation Discussion The street reconstmction will include the constmction of deprcssed curbs and concrete driveway aprons at all existing driveways, Reconstmction of bituminous and concrete dri veways will be performed as necessary to meet grades, Where possible driveway grades will be improved over existing conditions, A significant amount of discussion occurrcd regarding concrete curb design, The City's Pavement Management Policy allows three types: 4 inch and 6 inch barrier curb and 4 inch surmountablc curb, The general consensus at public meetings to date called for surmountable curb however a few residents on Carlton Dri ve requested barrier curb to match the existing Tiller Lane curb, If surmountable curb is selected, the City Enginecr would recommend that exceptions are made at comer radii and catch basin low points to construct barrier curb, Barrier curb at these locations will allow the drainage system to operate more efficiently and to reduce tire and snowplow encroachments into yards around corners. ? The City Engineer requests that Council select either 6" barrier, 4" barrier or 4 inch surmountable curb be included with the project. The City Engineer recommends that the project include the permanent removal of Hamline A venue between Ingerson Road and Tiller Lane, This segment of Hamline Avenue would require significantly more soil correction as a result of its proximity to the adjacent wetlands to realize a comparable life expectancy of a typical City street. This segment of street has a PCI rating of 1, Reconstmction to a 28 foot width would impact approximately 0,1 acres of the adjacent wetland likely requiring mitigation at a 2: 1 ratio, The reconstmction of this street segment along is estimated to cost approximately $148,000,00, Only 284 linear feet of assessable property exists along this segment of street. Removal of this street would result in additional traffic on Dunlap Street and a short portion of Ingerson Road, Field tests conducted in 1999 indicated that traffic on Dunlap increased from approximately 100 vehicles per day to approximately 300 vehicles per day. This increase could also be equated from approximately 10 vehicles during the AM or PM peak hours to 30 vehicles during the peak hours, The ADT on the west end of Ingerson Road also increased by 200 from approximately 400 to 600 essentially matching the existing traffic on Hamline A venue south of Ingerson, These increases while significant in percentage terms still represent traffic volumes well within normal ranges for residential streets in Arden Hills. The City and neighborhood at large could realize significant benefits by removing this section of roadway including reduced overall project cost, reduction of impervious area, space for storm water quality improvements, space for a pedestrian trail, regrading of area to a more natural appearance and space for planting of landscape trees for screening of TH 51, ? The City Engineer requests Council to provide direction to staff to remove, reconstruct (to specified width) or leave in place the section of Hamline A venue between Ingerson Road and Tiller Lane, 8 I I I I I I I II I I I I I I I , I