Laserfiche WebLink
AMERICAN ENGINEERING TESTING, INC_ AET Project No.26-00538 <br /> 6.4 Pavement Design <br /> Based on the traffic counts provided to us by the City and the estimated growth rates which have <br /> been provided by MnDOT,we are anticipating two separate load levels for streets throughout the <br /> project. 3rd Street NW has an anticipated load level of 1450 Annual Average Daily Traffic <br /> (AADT); all other streets evaluated by AET for this project have an anticipated load level of <br /> 2350 AADT. We have assumed a growth rate of 3% based on MnDOT projections for <br /> Sherburne County. <br /> Based on anticipated loads we have calculated that 3`d Street NW will require a minimum total <br /> gravel equivalency(GE) of 18.11-inches (within 0.5-inches). The remaining streets evaluated by <br /> AET for this project will require a minimum total GE of 21,09-inches (within 0.5-inches) based <br /> on the anticipated loads. In addition to exceeding the minimum GE, we recommend the <br /> bituminous thickness be a minimum 3.5 inches and the total section be a minimum of 12.5 <br /> inches. <br /> Table A, below, shows two options for recommended pavement designs based on the two <br /> anticipated load scenarios throughout the project. <br /> Pavement Design; Table A <br /> Location 3r Street NW Railroad Dr. 185t Ave, and others <br /> Section Option Option-1 Option-2 Option-1 Option-2 <br /> '"V6Fear Course 2-inches 1.5-inches 2-inches 1.5-inches <br /> Non-wear Course 2.5-inches 2-inches 2.5-inches 2-inches <br /> Aggregate base 8-inches 6-inches 10-inches 8-inches <br /> Select Granular NIA 12-inches NIA 12-inches <br /> Total GE 18.13 19.88 20.25 21,88 <br /> Page 7 of 9 <br />