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W County Road D/NB I-35W Ramps: <br />Operations <br />I-35W North Corridor Preliminary Design Project 19 <br />Existing Construction: <br />No Mitigation <br />Construction: <br />Mitigated <br />AM 20 60 15 <br />PM 20 65 30 <br />Overall Intersection Delay in Seconds <br />Issue: <br />•All movements volumes increase by several hundred cars <br />in p.m. peak hour <br />•Excessive delay for NB approach and EBL <br />Mitigation: <br />•Coordinate with other signals along CR D <br />•Change outside shared NBT/NBR to shared <br />NBL/NBT/NBR <br />Installation: <br />•MnDOT pays for interconnect, signal coordination <br />development and implementation, and restriping <br />Maintenance: <br />•MnDOT and Ramsey County coordinate on signal timing <br />changes required during construction