Agenda - Council - 11/26/2002 - Laserfiche WebLink

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I I I I I I I. I I I I I I I I I I I I Preliminary Plat Highlands at River Park 4~' Addition November 1, 2002, Revised November 22, 2002 Page 2 of 5 named in conformance with the City street grid. The proposed cUl-de-sac is slightly less than 500 feet in length and meets City requirements for length. The minimum horizontal curve radius on a minor street is 100 feet. Please revise the street plan accordingly. Lot Size, Dimensions, and Setbacks: Ali of the lots meet the 10,800 square foot lot area requirement and 80 foot lot width, 90 foot lot width for corner lots, requirement measured at the building setback. The required setbacks are 30 feet for front and rear yards, 10 feet side yard for a habitable portion, 6 feet side yard for garage side, and 30 feet on corner side yards. The original proposed plat showed Lots 1 and'10, Block l:'with' only 20 fogt:cornet: side yard setbacks. You have provided the City with a revised drawing showing the correct setbacks. The final plat shall contain the correct setbacks. Grading and Drainage: These comments are based on the Preliminary Grading and Stormwater Plan (Sheet 2 of 6) dated'August 5, 2002. · Drainage swales shall be located inside drainage and utility easements similar to Lots' 12 and 13 on the Highlands at River Park 1~t Addition. · Please provide storm sewer outlet for the Iow area west of Lot 6. · Drainage arrows must be provided around each housepad. · It will be the developer's responsibility to ensure positive drainage for all custom graded lots. More information is requested for Lots 3 and 4. There is a four foot difference in the house pad elevations. These elevations should be evaluated to determine if adjustments can be made or retaining walls will need to be constructed in order to comply with all grading requirements. · A permit will be required from the MPCA and the Lower RUm River Water Management Organization. Justification for the iow floor elevations adjacent to the back yard catch basin behind Lots 8 and 9 will be required. · Elevations shall be provided for the 100 year flood event for pre- and post-development for the 15ond adjacent to Lot 8 and west of Lot 6. · Resubmit drainage calculations for the 10 and 100 year design storm to verify storm seWer design atSer changes are made to accept water from the low area west of Lot 6. · Tops of all storm sewer pipes shall be matched wherever possible. Easements. The standard l0 foot drainage and utility easements (5 feet on common property lines) are shown on the preliminary plat and must be provided on the final plat. Any wetlands located on the property must also be delineated and dedicated as drainage easements. A 20 foot easement is required over all storm sewer pipes. Additional drainage easement will need to be shown for the ponding areas. -187-