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HomeMy WebLinkAbout#02 - TH36-Manning Interchange UpdateTrunk Highway (TH) 36 and Manning Avenue/County State Aid Highway (CSAH) 15 Interchange Study Update Nathan Arnold Engineer II Project Overview Project Overview •TH 36 and CSAH 15 (Manning Avenue) •Development Opportunities •Edge of Current Urban Development •Existing Housing, Golf Course, Apple Farm, Commercial Businesses •Existing system deficiencies •Congestion and delays–especially during commute times •Unsafe and poorly functioning intersection –High Volume •Access Management •Inadequate intersection spacing •Pedestrian facilities •Drainage improvement opportunities Project Overview Project Overview Project Goals •Improve Capacity, Safety, and Operations •Maintain/Improve Local Access •Constructability/Financially Responsible Project •Maintain Federal Requirements for Funding –North Frontage Road Connection –Maintain multiuse trail connection •Maintain long-term transportation goals Project Partners/Stakeholders •Washington County, FHWA, MNDOT •Grant, Lake Elmo, Oak Park Heights, Stillwater, Stillwater Township, Brown’s Creek Watershed District •2 residential neighborhoods •2 developers –Legends & Sanctuary •Applewood Golf Course and Aamodt Apple Farm •Public –including local and regional users •Pedestrians and multimodal users Project Schedule Project Management Team (PMT) Meeting Monthly Local Advisory Team (LAT) and Stakeholder Meetings at Progress Points –Identify needs –Identify high level impacts –Traffic modeling –Screen alternatives –Public feedback –Identify preferred interchange Public Open House Interchange Study Current/future issues –Need for an interchange –Pedestrian/bike access across 36 –Housing development concerns •Legends neighborhood –Increased traffic from development –Signal at 62nd •Sanctuary neighborhood –Noise impacts Open House Comments Alternatives Maintains Northwest Frontage Road Transmission line and pond impacts 3 Alternatives to maintain North to West Bound Traffic Right turn for High Volume Movement Transmission line and pond impacts Ends Frontage Road, Limits Lake Elmo Avenue Interchange Frontage Road Connection to Interchange Right to Left Loop Ramp •Expense –$25-30 million •Anticipated Funding –$7 million in federal funding –Regional Solicitation –10-20% local contributions per the county cost participation policy –Currently no State funding •Requested State Bonding –Will continue to seek additional funding Project Funding –Relocation/reconstruction of local access –Sound/noise barrier –Cost of signal legs at local streets –Future/potential frontage roads local/developer –% of construction cost for mobilization, engineering services, traffic control –Retaining wall to minimize impacts –50% of trails –50% of curb and gutter –Right of way Potential Local Costs •Investigate Single and Double loop options –Further design, geotechnical, environmental impacts/documentation, construction limits, costs •Work with Partners/Stakeholders –Maximize benefits and minimize impacts –Identify preferred interchange design and develop Layout –Resolution of support Next Steps Questions?