Agenda - Council - 10/22/2013 - Laserfiche WebLink

Home

Review File: Brookfield 4th Addition Preliminary Plat Request Engineering Review Page 2 of 3 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 preliminary 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. 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. Drainage and utility easements need to be provided over such swales. 2. 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. 3. The emergency overflow elevation for each water quality pond must be one foot lower than the lowest adjacent grade of the building structures. 4. The maximum slope should not exceed one foot vertical to four feet horizontal. . 5. The font size/ pen weight of labels must be increased to make plan readable. 6. 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. 7. 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. 8. There are existing homes on lots 1-3, Block 6, Brookfield 3rd Addition. The grading for lots 1-4 and 18-20, Block 3 of Brookfield 4th must maintain the drainage pattern established when the homes were constructed. 9. The high point in 168th avenue must be at the east edge of the plat, drainage from this project cannot flow to the east. 10. Grades and catch basin placement at the intersection of 167th Lane NW and Kamacite Street NW must be revised. 11. The label size/ line width must be adjusted to allow for checking of street profiles and lot grading. A permit from the Lower Rum River Water Management Organization must be obtained. Utilities: All lots are proposed to be served by municipal sewer and water. A preliminary utility plan has been prepared which is generally acceptable. Construction plans and specifications are subject to review of the City Engineering Department.