FINAL REPORTS GENERAL PLAN UPDATE KAUA‘I INFRASTRUCTURE ANALYSIS 1. TRANSPORTATION SYSTEM 2. DRAINAGE SYSTEM 3. WATER SYSTEM 4. WASTEWATER SYSTEM 5. SOLID WASTE SYSTEM May 2015 PREPARED FOR: R. M. TOWILL CORPORATION SINCE 1930 County of Kaua‘i 2024 North King Street., Suite 200 Honolulu, Hawaii 96819-3494 (808) 842-1133 ! Fax: (808) 842-1937 (RMTC Ref: 1-22273-00E) General Plan Update Kaua‘i Infrastructure Analysis Transportation System Table of Contents Acknowledgements Dedication Abbreviations Executive Summary ................................................................................... Executive Summary-1 Transportation System Section 1. Existing Transportation Planning Documents .............................. Transportation-1 1.1 Federal-Aid Highways 2035 Transportation Plan (FAHTP) ............................ Transportation-1 1.2 Kaua’i Multimodal Land Transportation Plan (MLTP) .................................... Transportation-2 1.3 Key Difference .................................................................................................. Transportation-6 Section 2. Overview of Existing Transportation System ................................ Transportation-7 2.1 Introduction ....................................................................................................... Transportation-7 2.2 Existing Roadway System ................................................................................ Transportation-7 2.3 Travel Demand .................................................................................................. Transportation-9 2.3.1 Vehicular Volumes ............................................................................... Transportation-9 2.3.2 Freight System .................................................................................... Transportation-13 2.3.3 Public Transit System ......................................................................... Transportation-16 2.3.4 Bikeway System.................................................................................. Transportation-16 2.3.5 Pedestrian System ............................................................................... Transportation-16 2.3.6 Emergency Response System ............................................................ Transportation-20 Section 3. Proposed Solutions ......................................................................... Transportation-21 3.1 Introduction ..................................................................................................... Transportation-21 3.2 Federal-Aid Highways 2035 Transportation Plan (FAHTP) .......................... Transportation-21 3.2.1 Capacity Projects ................................................................................ Transportation-21 3.2.2 Implementation of the FAHTP and the STIP ..................................... Transportation-24 3.3 Kaua’i Multimodal Land Transportation Plan (MLTP) .................................. Transportation-24 3.3.1 Transit Program .................................................................................. Transportation-25 3.3.2 Bicycle Program.................................................................................. Transportation-25 3.3.3 Pedestrian Program ............................................................................. Transportation-25 3.3.4 County Roads Program ....................................................................... Transportation-25 3.3.5 Agriculture Transportation Program ................................................... Transportation-26 3.3.6 Land Use Program .............................................................................. Transportation-26 3.3.7 Implementation of the MLTP ............................................................. Transportation-26 3.4 Comparison With 2014 Socio-Economic Analysis and Forecasts ................. Transportation-26 3.4.1 Population Forecast ............................................................................. Transportation-27 3.4.2 Comparison With FAHTP .................................................................. Transportation-28 3.4.3 Comparison with MLTP ..................................................................... Transportation-28 Figures Figure 2.2.1 Existing Roadway System ........................................................ Transportation-8 Figure 2.3.1 2007 Volume to Capacity Ratio ............................................. Transportation-11 - 1 - General Plan Update Kaua‘i Infrastructure Analysis Transportation System Figure 2.3.2 2035 Volume to Capacity Ratio ............................................. Transportation-12 Figure 2.3.3 2007 Freight Distribution ....................................................... Transportation-14 Figure 2.3.4 2035 Freight Distribution ....................................................... Transportation-15 Figure 2.3.5 Existing Transit Routes .......................................................... Transportation-17 Figure 2.3.6 Existing and Planned Bicycle System .................................... Transportation-18 Figure 2.3.7 Existing State Pedestrian System ........................................... Transportation-19 Figure 3.2.1 Potential Long-Range Capacity Program Solutions ............... Transportation-23 Drainage System Section 1. Overview of Existing Drainage System .................................................... Drainage-1 1.1 Introduction ................................................................................................................ Drainage-1 1.2 Existing Drainage System .......................................................................................... Drainage-1 Section 2. Principal Flood Problems .......................................................................... Drainage-3 Section 3. Flood Protection Measures ........................................................................ Drainage-5 Water System Section 1. Overview of Existing Water System .............................................................. Water-1 1.1 Introduction .................................................................................................................... Water-1 1.2 Existing Department of Water (DOW) Water Systems ................................................. Water-1 1.3 Existing Private Water Systems ................................................................................... Water-11 1.4 Water Use and Development Plan ............................................................................... Water-14 Section 2. Improvement Program ................................................................................. Water-15 2.1 Existing Need ............................................................................................................... Water-15 2.2 Projected Need ............................................................................................................. Water-16 2.3 Capital Facilities Projects ............................................................................................ Water-17 2.4 Recommendations ........................................................................................................ Water-18 Figures Figure 1.2.1 Department of Water & Private Systems Water Service Area ............... Water-2 Wastewater System Section 1. Overview of Existing Wastewater System ............................................ Wastewater-1 1.1 Introduction ........................................................................................................... Wastewater-1 1.2 County of Kaua’i Wastewater Infrastructure ........................................................ Wastewater-1 1.2.1 Waimea Wastewater System ..................................................................... Wastewater-5 1.2.2 ‘Ele’ele Wastewater System ..................................................................... Wastewater-5 1.2.3 Līhu‘e Wastewater System ....................................................................... Wastewater-5 1.2.4 Wailua Wastewater System ...................................................................... Wastewater-5 1.3 Private Wastewater Systems ............................................................................... Wastewater-10 1.3.1 Puhi Sewer and Water Company System ............................................... Wastewater-10 1.3.2 Pacific Missile Range Facility Wastewater Treatment Plant .................. Wastewater-10 1.3.3 Kaua’i Beach Resort Association Wastewater Treatment Plant ............. Wastewater-10 - 2 - General Plan Update Kaua‘i Infrastructure Analysis Transportation System 1.3.4 Princeville Wastewater Treatment Plant ................................................. Wastewater-11 1.3.5 Po‘ipū Wastewater Treatment Plant ....................................................... Wastewater-11 1.4 Individual Wastewater Systems (IWS) ............................................................... Wastewater-11 Section 2. Capacity Assessment, Deficiencies, & Demands ................................ Wastewater-13 2.1 Overview ............................................................................................................. Wastewater-13 2.2 County of Kaua’i Wastewater ............................................................................. Wastewater-13 2.2.1 Waimea Wastewater Treatment Plant ..................................................... Wastewater-13 2.2.2 ‘Ele’ele Wastewater Treatment Plant ....................................................