Agenda - Council - 12/10/2013 - Laserfiche WebLink

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Review File: Brookfield 4th Addition Final Plat Request Engineering Review 12-5-13 Page 2 of 5 1. 166th Avenue and Variolite 2. Ramsey Blvd and Nowthen Blvd 3. 167th and Nowthen Blvd. 4. 167th Avenue and Coquina St. 5. 167th Avenue and St Francis Blvd. All of the above intersections, except for 167th Avenue and TH 47 will continue to operate at acceptable levels of service. No immediate improvements are recommended for these intersections around the development. The intersection at 167th Avenue and TH 47 currently operates below a desirable level of service during the afternoon peak period. Improving the level of service at this intersection will require signalization of this intersection. The intersection must meet traffic warrants before this signalization will be allowed by MnDOT. The lots in this plat were included in this traffic analysis, a separate study is not required. Grading and Drainage Plans: A final grading and drainage plan has been prepared for this subdivision by Anderson Passe & Associates, P.A. Staff offers the following comments on this plan: 1. Proposed lot corner elevations need to be provided on all lot corners and along the centerline of drainage swales which do not coincide with common property lines. The 100 year flood elevations for ponding areas need to be noted on the grading plan. All lowest floor building elevations must be two feet above this elevation. 2. Grading plan sheets at 1" = 50' have been added to the set. The sheets for grading of future phases should not be included in the set, or the area outside of the current phase must be shaded. Construction fence must be added at the limits of grading between this phase and the future phase. 3. A tabulation of lot elevations with minimum floor elevations and adjacent pond high water levels must be added to the plan. The tabulation must be confined to lots in this phase. 4. The emergency overflow elevation for each water quality pond must be one foot lower than the lowest adjacent grade of the building structures. 5. The maximum slope should not exceed one foot vertical to four feet horizontal. . 6. The font size/ pen weight of labels must be increased to make plan readable. 7. The existing swale across lots 14 and 15, Block 1 must be backfilled with fill suitable to support a structure. The existing curb and pavement at the intersection of 170th Trail NW and Limonite Terrace NW may need replacement due to undermining of the soil. The exis 8. Sidewalks are generally shown adjacent to the streets. Sidewalks must be added to Kamacite Street NW between 168th Avenue NW and 168th Lane NW and 167th Lane NW between Limonite Street NW and Kamacite Street NW. 9. There are existing homes on lots 1-3, Block 6, Brookfield 3rd Addition. The grading for lots 1-4 Block 3 of Brookfield 4th must maintain the drainage pattern established when the homes were constructed. Existing grades must have a different label style. Plan sheet specific comments are listed at the end of this report.