CCP 01-21-2003 - Laserfiche WebLink

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I '- I I I I I I I .. I I I I I I -. I I Item 16: Erosion and Sedimentation Erosion and sedimentation will be minimized during redevelopment of the AUAR study area by the implementation of erosion control measures that will be identified in the final site grading and construction plans. The control measures, including those required by the City of Arden Hills, Rice Creek Watershed Distriet and the MPCA NPDES permit, will be implemented prior to the grading operation and will be maintained until all disturbed areas have been restored. Item 17: Water Quality; Surface Water Runoff The proposed development will decrease the amount of existing impervious surface area within the AUAR study area, thus decreasing the overall surface water runoff volumes. However, unlike existing surface water runoff whieh discharges directly into adjaeent wetlands, surface water runoff generated from the proposed development will be treated prior to entering adjacent wetlands. To accommodate and treat surface water runoff, methods of infiltration, retention and NURP ponds will be implemented. Mitigation measures will be further defined during final design and will be in accordance with the City of Arden Hills and Rice Creek Watershed District requirements. Item 21: Traffic The traffic impact study completed by Parsons Transportation Group for the AUAR study area provided information on anticipated traffic impacts resulting from the campus expansion. The traffic study analyzed existing and future (years 2005 and 2020) No-Build and Build conditions. The existing traffic operations analysis identified that several interseetions within the project area currently operate at LOS D or worse during the A.M. and P.M. peak hours. For comparison to the proposed expansion traffic operations, future No-Build traffic operations were analyzed including planned improvements. The planned improvements included expanding Lexington Avenue to two northbound lanes between Guidant Drive North on CR 96 in 2003 (as planned by Ramsey County) and adding a traffic signal at Victoria Street and Lexington A venue by 2005 (as planned by Ramsey County). Per discussions with the City, it is also assumed that by 2020, a north-south connection will be extended north of CR 96 to CR 1. Following is a summary of the No- build and Build traffic analysis. NO-BUlLD CONCLUSIONS Similar to existing eonditions, all signalized intersections will operate at an overall LOS D or better in 2005, except Lexington Avenue/CR 96 and Lexington Avenuc/castbound 1-694 ramps, which will operate at LOS E in the P.M. peak. By 2020, all signalized intersections, except Lexington AvenuelVictoria Street will operate at LOS F in the P.M. peak. The four unsignalized intersections experiencing LOS E or F in 2002 will experience LOS E or F in 2005 and 2020. The cause of declining LOS from 2005 to 2020 at many of the intersections analyzed is the increase in background traffic volumes and lack of planned improvements on the adjacent Gujdant Campus Master Plan final AUAR and Mitigation Plan - 59- January 2003