County of Hawaii - Flood Awareness

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Multi-Hazard Mitigation Plan for 2014


Progress Report

 Date this Report was Prepared: 9/9/14

 Name of Community: Hawaii County, HI

 Name of Plan: County of Hawaii Floodplain Management Plan

 Date of Adoption of Plan: 8/16/10

 5 year expiration date: 10/1/2015

  1. How can a copy of the original plan or area analysis report be obtained: 

  • County of Hawaii, Civil Defense Agency’s office at 920 Ululani St., Hilo, HI 96720.
  • County of Hawaii, Civil Defense Agency’s website:
  • County of Hawaii, Department of Public Works office, 101 Pauahi St., Ste 7, Hilo, HI 96720

 2. Describe how this evaluation report was

  • Prepared: Chapter 2 of the County’s August 16, 2010, Multi-Hazard Mitigation Plan (MHMP), describes how the report was prepared, summarized as follows:

Starting in 2009, through FEMA (PDM Grant) and County funds, the County’s Civil Defense Agency, as lead agency, facilitated the all hazards planning for the County.  The County’s Planning Department and Information Technology Department helped coordinate the planning process.

A work committee was established to help collect and analyze data used to prepare the MHMP.  To compile the data for preparing the plan, meetings were held with other agencies (e.g., HELCO, Red Cross, Hawaii Valcanoes Observatory) and County Departments (e.g., Fire, Police, Public Works). 

Public awareness and input was solicited (e.g. public meetings and survey form) that focused primarily on preparedness to respond to hazard events.  Numerous public meetings were held throughout the County that provided a forum for discussion on hazard mitigation.   A resident survey was conducted to further gather information on disaster preparedness.

  • Submitted to the governing body:  In December 2009, the final draft MHMP was submitted to the work committee (i.e., governing body) for review and comment.  The final MHMP was submitted to the Mayor of the County of Hawaii, who adopted the MHMP on August 16, 2010.
  • Released to the media:  The MHMP was upload to the Civil Defense’s and Public Works’ websites on July 12, 2011, link is provided above.  The media typically review the County websites.  The current annual report, described below, was posted to Public Works’ Face Books site, which is access by the public, the media and various interest groups (e.g., realtor, contractor, insurance associations).
  • Made available to the public:  On August 16, 2010, hardcopies were available at Civil Defenses and Public Works offices.  On July 12, 2011, electronic copies were available at Civil Defense’s website, link is provided above.

3. Provide a review of each recommendation or action item in the action plan or area analysis report, including a statement on how much was accomplished during the previous year:

Chapter 19 of the MHMP discusses the County’s mitigation actions, summarized as follows:

 The MHMP identifies seven hazards and related mitigation actions.  The mitigation actions are grouped into six broad categories: prevention; property protection; public education and awareness; natural resource protection; emergency services; and structural projects.  The hazards and mitigation actions are listed as follows:

  1. Hurricanes and Wind Storms

a. Warning Systems
b.  Hurricane Shelters
c.  Structural Integrity
d.  Infrastructure Lifelines

  1. Earthquakes

a. Identification of Vulnerable Structures and Areas

b. Hardening Critical Facilities

c. Use USGS and HVO Tools

  1. Tsunamis

a. Warning

b. Evacuation

c. Public Education

d. Structural Integrity

e. Recovery of Critical Facilities

  1. Rainfall Flooding and High Waves

a. Land Use Measures

b. Warning and Public Education Systems

c. Flood Control Structural and Nonstructural Projects

  1. Lava Flows

a. Identification of Hazard Areas

b. Warning Systems

c. Structural Protections

  1. Droughts and Wildfires

a. Identification of Hazard Areas

b. Critical Facilities and Training

c. Structural and Nonstructural Projects

  1. Landslides and Sea Cliff Erosion

a. Structural Projects

b. Preventive Land Use Measures

On September 8, 2014, Darryl J. Oliveira, Civil Defense Administrator submitted the attached annual report.

In addition to Civil Defense’s summary of annual activities, Public Works has:

  • Received LOMR Case No. 13-09-2129P for the South Kona Phase 1 Flood Study (Watercourses No. 13 through 20), which became effective on February 7, 2014.
  • Submitted LOMR Case No. 13-09-2591P to FEMA on July 2, 2013, which is the South Kona Phase 2 flood study (Watercourses No. 1 through 12 and 21 through 25).  FEMA indicated the proposed floodplain changes will be included in the Preliminary DFIRMs for Hawaii County, which should be published in the spring of 2015.
  • Submitted LOMR Case No. 14-09-2534P to FEMA on April 7, 2014, which is the Palai Stream Flood Study.  The LOMR should become effective in six to nine months.
  • Received verbal confirmation from FEMA on August 14, 2014, that the County’s levee certification for Alenaio Stream flood control project has been approved.
  • Continued working with the USACE to develop the Palai-Waiakea Stream and Keopu-Hienaloli flood control improvement projects.
  • Continued working with its consultants to finalize the Waiakea Stream and Puna area flood studies.
  • Received notification from the USACE on future opportunities to assist the County in preparing flood studies to improve FEMA’s Flood Insurance Rate Maps for Hawaii County.  On October 16, 2013, the County sent an assistance request letter to the USACE, but has received no response to date.  See attached October 16, 2013 Floodplain Study Priority List.

 4. Discuss why any objectives were not reached or why implementation is behind schedule:  Refer to Civil Defense’s and Public Works’ responses above.

 5. Are there recommendations for new projects or revised recommendations?  See Civil Defense’s and Public Works’ responses above.