07/11/2007 P&Z Packet - Laserfiche WebLink

Home Search

Moon March Drainage Calculations Review City of Lino Lakes, Minnesota 06/19/07 This item has been addressed. July 3, 2007 4. To provide a well aerated, highly porous surface, the soils of the filtration basin floor should be loosened to a depth of at least 12 inches prior to planting. 06/19/07 This item has been addressed. 5. It is highly recommended that mature plants be used over seed in the filtration basins. Fluctuating water levels cause seed to float and be transported downstream of the filtration basins. In addition, it may take up to two growing seasons to establish the function and aesthetic value of mature vegetation using seeds. 6. Label the normal water level and high water level of the existing wetlands on the Plan. 06/19/07 This item has been addressed. 7. Label the inverts and size of the existing culvert located under the existing gravel driveway. 06/19/07 This item has been addressed. • a. • Submit a copy of the NPDES permit for the City's records when available. 9. Approval from Rice Creek Watershed District (RCWD) is required. Submit a copy of the RCWD Permit when available. Additional Comments (06/19/07) 10. Use the existing culvert length and invert elevations for the outlet of wetland No. 1 in the existing conditions model 11. Clarify why the watershed area flowing to the east under proposed conditions (subcatchment 6S) has a longer time of concentration than under existing conditions ( subcatchment 7S). 12. Provide a berm north of the low point of the ditch located on the north side of the proposed road at station 6 +50 that will fully contain the 100 -year storm event. Label the elevation of the top of berm on the Grading Plan. 13. Show the location of soil borings 5 - 7, and label all soil boring numbers on the Grading Plan. 14. Clarify how the off -site watershed boundary to the north was determined. 15. Label the Rice Creek floodplain elevation of 887.5 on the Grading Plan. 13810.002