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US 14 Expansion Nicollet to North Mankato

US 14 Expansion Nicollet to North Mankato. Zachary Tess D7 Project Manager. US 14 – New Ulm to North Mankato ADT & Serious Crashes. 2009 AADT (HCAADT: 12.6%); 2007-2011 K+A Crashes. US 14 – Recent History. Immediate Actions. Enforcement

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US 14 Expansion Nicollet to North Mankato

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  1. US 14 Expansion Nicollet to North Mankato Zachary Tess D7 Project Manager

  2. US 14 – New Ulm to North Mankato ADT & Serious Crashes 2009 AADT (HCAADT: 12.6%); 2007-2011 K+A Crashes

  3. US 14 – Recent History

  4. Immediate Actions • Enforcement • Relocation of existing HEAT zone • Additional four hours of presence each day • Up from two hours per day • Funding through September of 2012 • $62k per year to maintain additional presence • Signing • Additional signing to address motorist behavior

  5. Interim Safety Project $2.5M Construction Cost

  6. Constrained vs. Corridor Typical Constrained

  7. Constrained Inset

  8. Corridor Typical - (WB Construction Shown)

  9. Corridor Typical Inset

  10. Construction – R/W Cost

  11. Why are Construction Costs Higher in Constrained?!? • Additional Pavement & Aggregate needs • 14’ inside median vs. 4’ shoulder • Loonheads – U-turns for truck/agg equipment • Crown correction–cheaper than drainage structures • Still need R/W (south side utility poles)

  12. R/W cost and Constrained Viability • Current R/W Costs - $12K/acre • Provided by District Real Estate Rep • When Construction + R/W becomes equal between alternatives • $46K/acre – Assumes HTCB in both alternatives • $66K/acre – HTCB only in constrained

  13. Pros and ConsComparison of Alternatives • Corridor Typical • Pros • Lower Construction Cost • Introduction of alternative intersection treatment types – RCUTs • Lower Maintenance Cost • Cons • Additional farmland/wetland impacts • Constrained • Pros • Less impacts to farmland/wetlands • Evaluation for other corridors statewide • Cons • Higher Construction Cost • Higher Maintenance Cost

  14. Nicollet Bypass Discussion • Construction • $10M - $15M • 4-lanes only • No Interchange • R/W • $4M • 4-lanes • Relocations • Interchange *Currently Unfunded

  15. Nicollet Bypass Discussion • Why to west? • RSA – Critical Crash rate intersections • TH 14/TH 111 in Nicollet • TH 14/TH 99 in Nicollet • Local and Political Momentum • Local Infrastructure planning/needs • Wastewater treatment planning – North Mankato • City expanding • 2000 population – 890 • 2010 population – 1100 • 23.5% increase

  16. Future MPC Meetings • TH 14/TH 15 Intersection Discussion • Alternatives • Discussion of inclusion with MN River Bridge in New Ulm in 2018 • Nicollet Bypass and funding impacts

  17. Interim Safety Project Area Tuesday

  18. Interim Safety Project Area Tuesday

  19. Interim Safety Project Area Tuesday

  20. Interim Safety Project Area Wednesday

  21. Interim Safety Project Area Wednesday

  22. Nicollet to Courtland Tuesday

  23. Nicollet to Courtland Tuesday

  24. Nicollet to Courtland Wednesday

  25. Existing 4-lane – N. Mankato Tuesday

  26. Additional Questions or Comments • Contact Information • Zachary Tess – D7 Project Manager • Zachary.tess@state.mn.us • 507-304-6199 • Corridor Website • http://www.dot.state.mn.us/d7/projects/14newulmtonmankato/

  27. Joint Layout - Constrained

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