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September 11, 2021 <br />Page 82 <br />Highway 169 Mississippi River Crossing <br />A key segment of Highway 169 Mississippi River Crossing is shown in Figure 59 below. There are <br />currently several issues on this crossing, including heavy delay and long queues during several hours <br />of the day and limited right-of-way to address capacity needs. <br />Figure 59: US 169 NearSouth of the Mississippi River <br />Congestion Duration <br />This corridor was evaluated by analyzing hours of congestion. To determine hours of congestion, an <br />existing daily volume profile was developed at the river crossing in each direction. This volume <br />profile along with the existing hours of congestion on this corridor was used to determine the <br />maximum throughput in each direction at the river crossing. Based on the existing data, the river <br />crossing capacity was determined to be 2,500 vehicles per hour in each direction. <br />The feasibility analysis team then calculated year 2040 congestion duration on Highway 169 using <br />the corridor's capacity threshold and future daily volume profiles developed for no -build and build <br />scenarios. Forecasted changes in daily volume were applied to hours not already at capacity under <br />existing conditions. This methodology quantifies congestion duration as the number of hours the <br />daily volume profile exceeds corridor capacity. Year 2040 volume profiles for Highway 169 near the <br />Mississippi River are shown in Figure 60 and Figure 61 below. <br />Northwest Metro Mississippi River Crossing Feasibility Analysis <br />