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HomeMy WebLinkAboutCOM 0505.004 2002-2004 Assessment of the Major Infrastructure Needs for the Northwest Hawaii Region County of Hawaii Planning Department. March 1988 REC[wtm E X E C U T I V E S O M M A12 Y ,1me.-__---- °_~-~yi,'By.: Population Growth Trends and Projections The population growth in West Hawaii has been continuing for the last decade end beyond. The estimated population of the area was 92,300 in 1986 and is projected to increase substantially. mhe rate of growth will be influenced by the pace of economic development, in particular the growth rate of the visitor industry. As projected in the General Plan the population of the island could range from 173,000 to 258,000 by the year 2005. For in_rastructare planning eL~~,OSes an iSlanCSalde popLlBClon level OL 170,000 s,'ae SEleCted resulting in a projected Northwest Hawaii copulation of 84,000 Alternative Development Scenarios The population growth to 84,000 represents a doubling of the population in the Northwc-st Hawaii region. This doubling~could occur in many different ~,aays, however, so for analysis purposes four alternatives have been identified: 1) 'Irc!1d Oriented Grc.;%Lh: Projects future growth as an extension of the recent development patterns. This pattern continues the present dominance of Fona as the growth center for housing development. 2) Present General Plan Pattern': Projects growth to result in a pattern of the current General Plan, though at a much Comm. No., S O S (Subriitted by John Ray) Ref. To: r,',~"w R` Ref. Date Assessment of the Major Infrastructure Needs for the Northwest Hawaii Reglon County of Hawan Planning Department. March 1988 lower overall development level. This pattern reflects a growing role for LowEr South Kohala as a housing arEa, 3) Proposed General Plan Patterns Projects growth to rESUlt in the distribution pattern depicted in the proposed General Plan, though at a much lower overall development level. This pattern further accentuates the rolE of Lo~.;er South Kohs1_a as a major housing area putting an increasing proportion of the housing in close proximity to the resort devElopment areas. 4) P7atEr Oriented Patternsc ProjECts more growth in the arEas where water sources are most readily developed. This pattern puts ;;;ore growth in tdorth Kohala ar,d „amakua follo~.;ed by i;ona, then LowEr South Hohala and Piain~,ea, Major Infrastructure Costs For each of the alternatives the following infrastructure costs were projected: 1) _ater: The major off-sitE facilities Dwells, major transmission lines, reservoirs) were projECted for residential use only. The proposed North Kohala to South Kohala transmission line which is preliminarily estimated to require $d8 million was not includea. 2) Solid Waste: The costs of transfer stations and a new landfill were calculated for the diffErent scenarios. 3) Sewage Disposal: Projected plans and costs for public sewagE systems are listed. Assessment of the Major Infrastructure Needs for the Northwest Hawaii Region County of Hawaii. Planning Department. March 1988 4) Parks: The development costs for public neighborhood, community, regional'; and beach parks, and a municipal golf course are tabulated, Costs cited do not include lance costs. 5) Roads:. Major improvements to the major arterials are tabulated. The cost of intersection improvements, or ether comparatively small scale improvements are not included. fi) D!"alncoe:~ ImprOVcm2Rts t0 thE? major drainage k'ayS In hOna are tabulated. Other areas in F;2st nawaii do not have such major problems. The results of these tabulations for each scenario are shown on the following table. In all cases the total costs are similar, though the component costs vary considerably. The highest cost item in all cases is sewage disposal followed by roads, water systems, drainage and parks. Major Findines and Recommendations The analysis of the alternatives provides a comprehensive look at the magnitude of the major development costs needed for the Northwest Hawaii region if it is to accommodate the growth projected. 5ased on these cost estimations the following findings are proposed: 1) The total cost tabulated is approximately YS50 million. It should be noted that this does not includ >e ie nfrastructure - requirements for the rest of the island. s i Assessment of the Major Infrastructure Needs for [he Northwest Hawaii Reg,on County of Hawau Planning Department. March 1988 .2) The future costs lead us to conclude that a comprehensive financing strategy must be developed and agreed upon. 3) Cooperation between the county and state governments will be-n<cessary rf these costs are to be met. 4) Private sector cooperation and coordination will likewise be necessary. 5) The feasibi Lcy of the North Kohala to South Kohala water transmission line neads to be analv~ed carefully in light of the magnitude of the costs involved in that project. 6) inhere is a need to begin infrastructure investment as soon as possible since the problem is growing continuously. 7) A11 of the alternatives presented prc--some that there will be additional growth in the Kailua-Kona area as it is the largest urban area in West E;awaii and possesses many of the facilities required for additional growth. It is important that development planning be completed soon so that public and privately held lands can be brought on to meet the corrnnnity's heads.