I-93 Tri-Town Interchange Project

I-93 southbound at Dascomb Road
Mass DOT Highway and Executive Office of Housing and Economic Development
Project Documents

Below are links to project documents, related studies and reports and meeting summaries and handouts. The documents are in PDF format. If you do not have Acrobat Reader, click here to download it for free. Please note, many of the PDFs are 5MB and larger.

Studies, reports, plans and fact sheets

Fact Sheet (Fall 2009)

Constraints Map - South

Constraints Map - Interchange Area

Project Schedule (October 2010, Rev 6)

Environmental Review Process Fact Sheet (March 2009)

Public Participation Plan (September 28, 2009)

Coordination Plan (September 28, 2009)

Interstate 93 Interchange Justification Report

Interstate 93 Corridor Study


Federal process

FHWA Notice of Intent

FHWA Draft Purpose and Need Statement

Purpose and Need Phase Scoping Summary 

Appendices 
Notice of Intent
Participating Agencies Acceptances
Revised Purpose and Need Statement (May 2009)
Purpose and Need Statement Public Scoping Meeting Comment Summary 

 

State process

MEPA Notice of Project Change (NPC) November 29, 2010

MEPA ENF Secretary's Certificate

ENF Interchange Alternatives 3, 4 and 9

MEPA Notice of Project Change

MEPA Notice of Project Change Supplemental Information

MEPA NPC Secretary's Certificate

Notice of Project Change Comment Summary


Meeting notes and materials 

December 15, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

November 17, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

October 6, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

August 4, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

May 27, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

April 29, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

April 1, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

March 18, 2010, I-93 Working Group Meeting Presentation

February 25, 2010, Cooperating and Participating Agencies Interagency Coordinating Group Meeting Presentation

January 14, 2010 Tri-Town Development Task Force Presentation

November 12, 2009 Public Workshop

Daily Traffic Volumes on Proposed I-93 Add-a-Lane Segment
Potential Ballardvale Street/Research Drive/Burtt Road Extension
Noise Monitoring Locations
Single Point Urban Interchange with no West Side Connection (close up)
Single Point Urban Interchange with no West Side Connection (wide view)
Single Point Urban Interchange with West Side Connection (close up)
Tight Diamond Interchange with no West Side Connection (close up)
Tight Diamond Interchange with no West Side Connection (wide view)
Tight Diamond Interchange with West Side Connection (close up)
Routes used for Travel Time Analysis
Area of Influence for Use of South Street to Access Proposed Interchange 
Traffic Simulation Screen Shot - 2025 PM Peak Operations, 4 Lanes through Interchange
Traffic Simulation Screen Shot - 2025 PM Peak Operations, 4 Lanes end at Interchange


October 8, 2009 Economic Meeting
AECOM Project Overview Presentation
FXM Associates Economic Overview Presentation

March 19, 2009 Scoping Meeting

Meeting Presentation


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