This page contains documents produced for the Aleutian Islands Risk Assessment conducted from May 2009 - September 2011 (Phase A) and from July 2012 - July 2015 (Phase B)

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• Phase B Deliverable Reports

  • ​Final Program Report (14MB)

  • Final Summary Report - High Resolution (12MB)

  • Final Summary Report - Low Resolution (4MB)

  • 2012 Transits of Unimak Pass

  • Estimated Response Times for Tugs of Opportunity in the Aleutian Islands

  • Considering Options for Salvage and Oil Spill Response in an Optimal Response System

  • Considering Options for the Management and Funding of an Optimal Response System

  • Benefit-cost Analysis of Risk Reduction Options

  • Impact of Environmental Conditions on Vessel Incident Response in the Aleutian Islands: A Response Gap Analysis

  • Minimum Required Tug Study (updated 2014)

  • Regulatory Resource Study (5.9MB)

  • AIRA Weather Characterization Report (7.9MB)

    • Cover Letter for Weather Report

  • Statistical Analysis of the Similarity of Environmental Data Populations in the Aleutian Islands

  • QA/QC of Aleutian Bouy and Airport Observation Data

  • Purpose Designed Towing Vessel

  • Best Available Technology Study

  • Approved AIRA Phase B Workplan

  • Emergency Tow System Exercise - After Action Report

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• Phase A Technical Reports

  • Phase A Summary Report ​

  • Tasks 1 & 2 Reports Submittal Letter

  • Task 1, Vessel Traffic Study (7.6MB)

  • Task 2A, Marine Risk Assessment Results

  • Task 2B, Baseline Spill Report (5.9MB)

  • Tasks 3 & 4, Consequence Analysis Report (12MB)

  • Task 5, Accident Scenario & Casualty Study (12MB)

  • Task 6, Risk Reduction Option Evaluation Report