Transportation System Vulnerability and Resilience To
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Transportation System Vulnerability and Resilience to Extreme Weather Events and Other Natural Hazards — Final Results of Vulnerability Assessment of National Highway System for All KYTC Districts Report Number: KTC-18-08/SPR16-524-1F DOI: https://doi.org/10.13023/KTC.RR.2018.08 The Kentucky Transportation Center is committed to a policy of providing equal opportunities for all persons in recruitment, appointment, promotion, payment, training, and other employment and education practices without regard for economic or social status and will not discriminate on the basis of race, color, ethnic origin, national origin, creed, religion, political belief, sex, sexual orientation, marital status, or age. Kentucky Transportation Center College of Engineering, University of Kentucky Lexington, Kentucky in cooperation with Kentucky Transportation Cabinet Commonwealth of Kentucky © 2018 University of Kentucky, Kentucky Transportation Center Information may not be used, reproduced, or republished without KTC’s written consent. KENTUCKY Kentucky Transportation Center • University of Kentucky Transporation Center Kentucky 176 Raymond Building • Lexington KY 40506 • 859.257.6898 • www.ktc.uky.edu Research Report KTC-18-08/SPR16-524-1F Transportation System Vulnerability and Resilience to Extreme Weather Events and Other Natural Hazards — Final Results of Vulnerability Assessment of National Highway System for All KYTC Districts Benjamin Blandford, Ph.D. Research Scientist Scott Schurman Kentucky Transportation Cabinet and Candice Wallace, Ph.D. Research Scientist Kentucky Transportation Center College of Engineering University of Kentucky Lexington, Kentucky In Cooperation With Kentucky Transportation Cabinet Commonwealth of Kentucky The contents of this report reflect the views of the authors, who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the University of Kentucky, the Kentucky Transportation Center, the Kentucky Transportation Cabinet, the United States Department of Transportation, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. The inclusion of manufacturer names or trade names is for identification purposes and should not be considered an endorsement. May 2018 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No KTC-18-08/SPR16-524-1F 4. Title and Subtitle 5. Report Date Transportation System Vulnerability and Resilience to Extreme Weather May 2018 Events and Other Natural Hazards — Final Results of Vulnerability 6. Performing Organization Code Assessment of National Highway System for All KYTC Districts 7. Author(s): 8. Performing Organization Report No. Benjamin Blandford, Scott Shurman, Candice Wallace KTC-18-08/SPR16-524-1F 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Kentucky Transportation Center College of Engineering University of Kentucky 11. Contract or Grant No. Lexington, KY 40506-0281 SPR 16-524 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Kentucky Transportation Cabinet State Office Building 14. Sponsoring Agency Code Frankfort, KY 40622 15. Supplementary Notes Prepared in cooperation with the Kentucky Transportation Cabinet 16. Abstract Recent federal legislation and the Federal Highway Administration (FHWA) have directed state transportation agencies to identify potential vulnerabilities associated with extreme weather events and climate change, develop a risk-based asset management plan, and incorporate findings into transportation planning, design, and maintenance practices. The Kentucky Transportation Center and Kentucky Transportation Cabinet developed and led district-level workshops to elicit local expert knowledge on asset vulnerabilities to natural hazards. Combining the results of these workshops with analysis of available data on assets and hazards, they then performed a natural hazard vulnerability assessment of the state’s National Highway System (NHS) for each of Kentucky’s 12 districts. The four most critical extreme weather and natural hazards are earthquakes, floods, landslides, and sinkholes. NHS assets such as highway segments, bridges, culverts, and other structures (e.g., overpasses) were assessed for risk to these hazards. Researchers used a modified version of the Federal Highway Administration’s Vulnerability Assessment Scoring Tool (VAST). This assessment tool uses an indicator-based approach to assessing vulnerability and promoting resiliency, and results in a vulnerability score for each NHS segment and each hazard type. The output of the assessment process includes a GIS-based data system capable of producing maps that communicate vulnerable locations. Of the 287 NHS segments in Kentucky, 83 were found to have high vulnerability to earthquakes, floods, landslides, or sinkholes. 17. Key Words 18. Distribution Statement extreme weather, vulnerability assessment, natural hazard, resilience, flood, Unlimited with approval of the earthquake, landslide, sinkhole Kentucky Transportation Cabinet 19. Security Classification (report) 20. Security Classification (this page) 21. No. of Pages 19. Security Unclassified Unclassified 190 Classification (report) Table of Contents List of Figures ........................................................................................................................... iii List of Tables .............................................................................................................................. v Executive Summary ..................................................................................................................vii 1. Introduction ......................................................................................................................... 1 1.1. Overview................................................................................................................... 1 1.2. Assessment Framework ............................................................................................. 2 1.3. Historical and Projected Climate in Kentucky............................................................ 2 1.4. Hazards Considered ................................................................................................... 2 1.5. KYTC District Workshops ........................................................................................ 9 1.6. Results .................................................................................................................... 11 1.7. Discussion ............................................................................................................... 19 2. KYTC District 2 ................................................................................................................ 20 2.1. District Overview .................................................................................................... 20 2.2. Hazards ................................................................................................................... 21 2.3. Workshop ................................................................................................................ 28 2.4. Results .................................................................................................................... 34 3. KYTC District 3 ................................................................................................................ 36 3.1. District Overview .................................................................................................... 36 3.2. Hazards ................................................................................................................... 36 3.3. Workshop ................................................................................................................ 42 3.4. Results .................................................................................................................... 48 4. KYTC District 4 ................................................................................................................ 49 4.1. District Overview .................................................................................................... 49 4.2. Hazards ................................................................................................................... 50 4.3. Workshop ................................................................................................................ 56 4.4. Results .................................................................................................................... 59 5. KYTC District 5 ................................................................................................................ 61 5.1. District Overview .................................................................................................... 61 5.2. Hazards ................................................................................................................... 62 5.3. Workshop ................................................................................................................ 68 5.4. Results .................................................................................................................... 72 6. District 6 ........................................................................................................................... 73 6.1. KYTC District Overview ........................................................................................