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I I I Council Meeting Minutes June 23, 1998 Page 5 Council Business. continued 5. All homes within the proposed subdivision meet the City's minimum setback requirements for the R~ 1, Single Family Residential zoning district. 6. Each new home must be constructed a minimum of2-feet above the IOO-year flood plain elevation. 7. Grading and drainage plan be revised to include a drainage and utility easement over wetland and drainage area on Lot 1, and over the Stony Lake Wetland. Said plan must ensure there are no negative impacts on adjacent properties. 8. Said revised grading and drainage plan must also demonstrate that the existing berm along Silver Lake Road be maintained. 9. Installation of a lake storm sewer overflow in 23rd Avenue to protect lake shore properties from flooding. (Said plans are attached as an exhibit). 10. Each new home proposed for constructed within the subdivision must submit a grading plan with their application for a building permit. Said grading plans must be consistent with the overall grading plan approved as part of the Pinal Plat. 11. The proposed cul-de-sac be named 16th Terrace Northwest, and be designated as such on the Final Plat. Benke asked if either the cul-de-sac's ROW or the street width could be narrowed. City Engineer Les Proper explained that the width is needed to provide adequate snow storage and spacing between driveway edges. Benke asked the specifics of the water treatment pond. Teague explained that the pond, a RCWD requirement, serves as a water filtration system to filter sediments before flowing into Stony Lake. RCWD will review the permit on June 24. Samuelson noted the road width changes from 60 ft. to 50 ft. when entering 16th Terr., and asked if the entire width could be reduced to 50 ft. Teague confirmed that the original plat contains the 60 ft. ROW. Samuelson asked if the egress road could be redesigned to access Silver Lk. Rd. Teague said Ramsey County strongly recommended the 23rd Ave. access for safety reasons. Benke questioned whether the traffic study counts adequately reflect school year traffic. Teague agreed that traffic counts may increase during the school year. Samuelson noted resident concerns regarding flooding. Proper said the overflow mechanism involves existing catch basins and stormsewers at the intersection of 23rd Ave. and 16th St. which collect drainage and carry it to the lake. This system can be used as an outlet/control structure to carry water through the pipe and control the lake's elevation. Larson added that they would address resident concerns at the time of final plat and grading plan approval. Larson disagrees with applying restrictions to Lot 9 to retain the 30 ft. of White Oaks trees. He prefers that healthy trees be saved and no set restrictions applied. Teague feels the tree identification plan will assist greatly in determining which trees to retain. Larry Beach, applicant, confirmed that the tree identification plan would assist in determining whether Lot 9 requires any restrictions. He also prefers to retain as much of the natural areas as possible. Council Business Preliminary Plat and Variance for Stony Lake Development Report 98-133