Project Overview

The Chittenden County I-89 2050 Study is a collaborative effort of the Chittenden County Regional Planning Commission (CCRPC) and the Vermont Agency of Transportation (VTrans) to develop a comprehensive investment program for the 37 mile I-89 corridor in Chittenden County, Vermont through 2050.

Below is an image of the I-89 2050 Study Area. Click here to view the full map.

PROJECT TASKS

The Project is currently scheduled to run through the end of 2021 with the work following the tasks outlined below.

1. Project Initiation & Kick-Off
   • Project kick-off (May 2019)
   • First Technical and Advisory Committee meetings
2. Existing Conditions Assessment
   • Compile existing transportation and land use conditions along the corridor
   • Coordination with Resource Agencies
   • Develop corridor travel demand model (TransCAD) and microsimulation model (TransModeler)
   • Evaluate current and future base conditions
3. Develop Corridor Vision & Goals
   • Develop Vision, Goals, and Objectives
     • Draft Vision, Goals, and Objectives
   • First round of Public Outreach
     • Summary of Public Input - First Round
4. Evaluation of New and/or Improved Interchanges
   • Draft Round 1 & 2 Interchange Evaluation Metrics (link)
   • Round 1 Interchange Screening Evaluation
     • High-level screening of eight new or enhanced interchanges
     • Draft Round 1 Interchange Screening Matrix (link)
   • Round 2 Interchange Screening Evaluation
     • To be completed summer/fall 2020
   • Select 0-2 interchange improvements to advance into Task 5
5. Identify & Evaluate Alternatives
   • Identify preliminary improvements strategies for the corridor (e.g. safety, bike/ped, transit enhancements, technology, additional lanes (HOV or regular))
   • Evaluate up to three "bundles" of corridor improvements
   • Conduct second round of public outreach
   • Select preferred improvement "bundle"
6. Implementation Plan
   • Evaluation of preferred package of improvements
   • Identify project prioritization and triggers for each improvement
7. Final Report
   • Prepare Draft and Final Report
   • Conduct third round of public outreach

PROJECT SCHEDULE

The graphic below summarizes the project schedule, major milestones and opportunities for public input. Click here to view the full schedule.

STUDY DOCUMENTS

I-89 2050 Study - Scope of Work

I-89 2050 Study - Schedule

OTHER STUDIES

CCRPC Metropolitan Transportation Plan

VTrans Long Range Transportation Plan

Chittenden County I-89 Corridor Study (1997)

I-89 Exit 17 Scoping Study (2014)

I-89 Exit 16 Scoping Study (2011)

I-89 Exit 15 Interchange Reconfiguration Analysis (2004)

I-89 Exit 13 Access Improvements Scoping Report (1999)

I-89 Exit 12B Interstate Access Analysis Report (2010)

I-89 Exit 12B Financing Options Study (2009)