The Office of the Inspector General has issued the following reports, recommendations and reviews regarding the Central Artery/Tunnel Project. Certain reports are available online, either in PDF format or HTML. To obtain reports that are not available online, please contact the office at 617.727.9140. A list of all office reports, recommendations, manuals, newsletters, and publications is available at igpubl.htm.

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• Maintenance and Inspection of Covered Roadways and Highway Decks, letter to John Cogliano, Chairman, Massachusetts Turnpike Authority, April 2007.
  Letter[PDF]
• Legal and Financial Concerns Relative to the Plan to Transfer the Western Turnpike to MassHighway, letter to Chairman John Cogliano and Commissioner Luisa Paiewonsky, December 2006.
  Letter[PDF]
• Review of the Implication of Elimination of Tolls on the Massachusetts Turnpike, letter to John Cogliano, Chairman, Massachusetts Turnpike Authority, November 2006.
  Letter[PDF]
• Interim Review of the Partial Collapse of the Interstate 90 Ceiling and the Obligations of Various Commonwealth Entities to Inspect, Maintain, and Certify the Safety of the Tunnel, letter to Senator Steven A. Baddour and Representative Joseph F. Wagner, Joint Committee on Transportation, October 2006.
  Letter[PDF]
• Surety Bonds and the Central/Artery Tunnel Project, letter to Chairman Matthew J. Amorello, September 2005.
  Letter[PDF]
• A Review of Big Dig Professional Liability Insurance Coverage, June 2005.
  Report[PDF]
• A Big Dig Cost Recovery Referral: Dewey Square Air Intake Structure, March 2005.
  Report[PDF]
• A Big Dig Cost Recovery Referral: Waterproofing Mismanagement by Bechtel/Parsons Brinckerhoff in East Boston, March 2005.
  Report[PDF]
• A Big Dig Cost Recovery Referral: Paving Mismanagement by Bechtel/Parsons Brinckerhoff, January 2005.
  Report[PDF]
• Investigations Contribute to Planned $100 Million Big Dig Lawsuit, December 2004.
  Report
• A Big Dig Cost Recovery Proposal: Trench Drain Failures Led to Cost Increases, November 2004.
  Report[PDF]
• Big Dig Water Leaks, letter to Chairman Matthew Amorello from Inspector General Gregory W. Sullivan and Auditor A. Joseph DeNucci, November 2004.
  Letter[PDF]
• Investigation Leads to $146 Million Big Dig Lawsuit, March 2004.
  Report[PDF]
• A Big Dig Cost Recovery Referral: Poor Contract Oversight by Bechtel/Parsons Brinckerhoff May Have Led to Cost Increases, February 2004.
  Report[PDF]
• A Big Dig Cost Recovery Referral: Contract Mismanagement by Bechtel/Parsons Brinckerhoff May Have Increased Big Dig Costs, December 2003.
  Report[PDF]
• Proposal to Pursue Big Dig Cost Recovery: Ceiling Installation in the Ted Williams Tunnel, October 2003.
  Report[PDF]
• Proposal to Collaborate with the Administration on the Big Dig Project Cost Recovery Initiative, letter to Chief Legal Counsel Daniel Winslow, February 2003.
• Analysis of Bechtel/Parsons Brinckerhoff's Reply to The Boston Globe's Investigative News Series Concerning the Big Dig, February 2003.
  Report[PDF]
• A Recommendation for Cost Recovery Against the Big Dig's Management Consultant: Grout Heave-Related Contractor Claims on the C11A1 Contract, February 2003.
  Report[PDF]
• Proposal to Create a Cost Recovery Review of the Big Dig Project, letter to Chairman Matthew J. Amorello, November 2002.
• A Review of the Proposed Change in the Distribution of Proceeds From the Sale of Big Dig Project Headquarters at 185 Kneeland Street, letter to Secretary Norman Mineta, October 2002.
• A Review of $30 Million in Staffing Costs for the Big Dig Project, letter to Chairman Matthew J. Amorello, June 2002.
• Massachusetts Turnpike Authority Board's Cost Recovery Actions Against Bechtel/Parsons Brinckerhoff, letter to Chairman of the Board David Fornsberg from Gregory Sullivan and Auditor A. Joseph DeNucci, October 2001.
• A History of Central Artery/Tunnel Project Finances 1994 - 2001: Report to the Treasurer of the Commonwealth, March 2001.
  Executive Summary (html), Report [PDF]
• A Review of the Central Artery/Tunnel Project Cost Recovery Program, December 2000.
  Executive Summary (html), Report [PDF]
• Central Artery/Tunnel Project: Management Issues and Recommendations 1993-2000, December 2000. [480 pages; not available electronically]
  To request a copy
• Removal of Scope from Contracts Post-Bid, letter to Acting Project Director Michael Lewis, June 2000.
• Statutorily Mandated Reviews of Central Artery/Tunnel Project Building Construction Contracts 1997-1999, December 1999.
  Report [PDF]
• A Review of the Central Artery/Tunnel Project's Use of Anchor Bolts on the C05B1 Tunnel Finishes Contract, December 1998.
  Executive Summary (html), Report [PDF]
• A Review of the Central Artery/Tunnel Project's Materials Testing Laboratory Function, December 1997.
  Executive Summary (html), Report, [PDF]
• Potential $1.8 Million Value Engineering Change Proposal Cost Savings From the C17A2 - State to North Street Central Artery Contract, letter to Central Artery/Tunnel Project Director Peter M. Zuk, May 1997.
• Preliminary Check of Security Measures Show Present Conditions Invite Theft and May Compromise Future Cost Recovery Actions, letter to Central Artery/Tunnel Project Director Peter M. Zuk, March 1997.
• Statutorily Mandated Reviews of Central Artery/Tunnel Project Building Construction Contracts: 1994-1996, December 1996.
• Value Engineering Change Proposals: A Review of a Central Artery/Tunnel Project Cost Control Program, December 1996.
• Concerns About Contractual Vulnerabilities of the Contractual Arrangement Between MassHighway and Bechtel/Parsons Brinckerhoff, letter to Central Artery/Tunnel Project Director Peter M. Zuk, June 1996.
• Report on the Mass. Highway Department's Asset Management System for the Central Artery/Third Harbor Tunnel Project, November 1995.
• Concerns Over an Additional $7 million in Services to be Added to the DeLeuw Contract with MassHighway, letter to Central Artery/Tunnel Project Director Peter M. Zuk, March 1995.
• MassHighway Did Not Have Authority to Purchase Inverset Technology Through a Sole-Source Negotiated Procurement, letter to Central Artery/Tunnel Project Director Peter M. Zuk, December 1994.
• MassHighway's Procurement of a Fireboat for the City of Boston Violated M.G.L. c.7, §22, letter to Central Artery/Tunnel Project Director Peter M. Zuk, December 1994.
• Value Engineering: A Review of a Central Artery/Tunnel Project Cost-Control Program, December 1994.
• Reduction in the Frequency of Bechtel/Parsons Brinckerhoff's Reporting on the Big Dig Project, letter to Central Artery/Tunnel Project Director Peter M. Zuk, November 1994.
• Bechtel/Parsons Brinckerhoff's Management of a Design Contract for the Central Artery/Tunnel Project, November 1994.
• Review of Big Dig Project's Value Engineering Program, letter to Central Artery/Tunnel Project Director Peter M. Zuk, September 1994.
• Requirement of MassHighway to Award Contracts for Engineering Survey Services to the Lowest Responsible and Eligible Bidder, letter to Central Artery/Tunnel Project Director Peter M. Zuk, August 1994.
• Large Change Orders and Contract Administration Problems on Big Dig Construction Contract CO7B1 - Porter Street Outfall Sewer Relocation, letter to Central Artery/Tunnel Project Director Peter M. Zuk, August 1994.
• Report on the Massachusetts Highway Department's Internal Audit Function for the Central Artery/Third Harbor Tunnel Project, July 1994.
• Concern Over Big Dig Project's Procurement and Change Order Administration, letter to Central Artery/Tunnel Project Director Peter M. Zuk, June 1994.
• Critique of Big Dig Project's Residential Engineers Manual, letter to Central Artery/Tunnel Project Director Peter M. Zuk, June 1994.
• Review of Change Order Associated with Sediment Odor Control on a Big Dig Construction Contract, letter to Central Artery/Tunnel Project Director Peter M. Zuk, April 1994.
• Review of Contract Modification and Change Orders Associated with Design and Construction Contracts on the $7.7 Billion Big Dig Project, letter to Central Artery/Tunnel Project Director Peter M. Zuk, December 1993.
• Discussion of Conflict of Interest law as it Pertains to Bechtel's Subsidy of Big Dig Holiday Celebration, letter to Central Artery/Tunnel Project Director Peter M. Zuk, December 1993.
• Hazards Ahead: The Operations Control Center Complex for the Central Artery/Tunnel Project, March 1993.
• Review of Bechtel/Parsons Brinckerhoff's cost to Relocate Employees and Families, letter to Central Artery/Tunnel Project Director Peter M. Zuk, November 1992.
• Audit Services Procurement by the Massachusetts Department of Public Works, November 1991.
• Critique of Big Dig Project Management Plan, letter to Central Artery/Tunnel Project Director Peter M. Zuk, September 1991.

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