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W County Road D/County Road 88: <br />Operations <br />I-35W North Corridor Preliminary Design Project 16 <br />Existing Construction: <br />No Mitigation <br />Construction: <br />Mitigated <br />AM 25 35 15 <br />PM 60 90 20 <br />Overall Intersection Delay in SecondsIssue: <br />•Excessive delay for NB approach for existing PM <br />•NBR, EBT, and WBT volumes increase from between <br />50 and 250 cars in p.m. peak hour <br />•Excessive delay from WB approach during construction <br />Mitigation: <br />•Convert left NBT lane to a shared NBT/NBL lane <br />•Coordinate signal with signals to the east on CR D <br />Installation: <br />•MnDOT pays for interconnect and signal coordination <br />development and implementation <br />•MnDOT pays for conversion of NBT to NBL lane <br />Maintenance: <br />•MnDOT and Ramsey County coordinate on signal <br />timing changes required during construction <br />W County Road D <br />CR 88 NB on-ramp closed