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September 11, 2021 <br />Page 48 <br />Concept 4: 4-Lane Expressway River Crossing <br />Concept 4 is the second of two concepts involving a new Mississippi River crossing on the <br />Zanzibar/Armstrong alignment. Concept 4 consists of a four -lane rural divided expressway with a <br />160-foot right-of-way and a minimum one-half mile spacing between at -grade intersections. The <br />concept assumes a 55-mph design speed and a 560-foot bridge span. <br />Figure 29: Concept 4 - Four -lane Arterial Following Zanzibar/Armstrong Alignment <br />Table 9: Concept 4 Improvement Details and Cost Range <br />Improvement <br />Segment <br />Total Project Cost <br />(2030 dollars) <br />New River Crossing <br />Net Cost <br />New river crossing designed as a 4-lane expressway <br />between 1-94 to Highway 10 <br />$190M - $250M <br />$190 - $ 250M <br />Northwest Metro Mississippi River Crossing Feasibility Analysis <br />