West Maui Community Planning Advisory Committee Meeting September - PowerPoint PPT Presentation

Highways Division West Maui Community Planning Advisory Committee Meeting September 5, 2019

Highways Division Car Rental Surcharge • Rental motor vehicle surcharge increased to $5. • Estimated to generate $10.5M annually for Maui County. • Estimate we will be able to receive $18M to $19 per million when we use that funding as pledged revenue bonds. This will generate about $190M on a 20 year loan. • Priority Projects are: • Lahaina Bypass Phase 1C - $70M • Puunene Avenue Widening – $25 to $35M • Paia Bypass - $70M to $120M

Highways Division Lahaina Bypass Phases

Highways Division Lahaina Bypass Supplemental EIS Alignment

Highways Division Lahaina Bypass Supplemental EIS Alignment

Highways Division Climate Change and Hawaii Roads • Assumptions for Coastal Roads and Sea Level Rise • Hawaii will have to contend with the impacts of climate change on our coastal roads • The Hawaii Climate Change and Adaption Commission forecasts 3.2 feet/1 m sea level rise by 2100 • 10-15% of the state’s highway system would be affected

Highways Division State Highway Shoreline Protection Study • Updated the 2003 study with new methodology. Report is being finalized and will be available soon. • Methodology • Sites are evaluated using the Coastal Road Erosion Susceptibility Index (CRESI). • CRESI uses 11 different variables (Beach Geomorphology, Coast Geomorphology, Erodible Volume, Slope, Coast ground cover & structures, Road base/subgrade, Armoring, Relative sea level change rate, Shoreline accretion/erosion rate, Mean tidal change, and Significant wave height. • Expected traffic impacts (of the use of the roadway being effected by coastal erosion) and surrounding land use is also considered.

Highways Division State Highway Shoreline Protection Study

Highways Division State Highway Shoreline Protection Study

Highways Division State Highway Shoreline Protection Study • Priority sites for Maui County are: • #4 – Honoapiilani Highway @ M.P. 14.3 to M.P. 14.5 • #6 – Kamehameha V Highway @ M.P. 14.7 • #7 – Kamehameha V Highway @ M.P. 16.3 • #11 – Honoapiilani Highway @ M.P. 11.6 • #12 – Honoapiilani Highway @ M.P. 12.1 to M.P. 13.7 • A feasibility study to collect archaeological information, topography and alignment options will be done to address Priority #4 in the near term. • A Planning and Environmental Linkage Study will be done to address M.P. 10.0 to M.P. 18.5 to address the entire corridor.

Highways Division State Highway Shoreline Protection Study Questions?