Final Environmental Impact Report
ASSEMBLY SQUARE
MIXED-USE REDEVELOPMENT
Somerville, Massachusetts
VOLUME 1
Cover Letter
Project Description
Alternatives Analysis
Sustainable Design
Transportation
Air Quality
Chapter 91
Open Space and Article 97 Land
Wetlands and Drainage
Contaminated Soils
Wastewater
Construction Period
Mitigation Summary and Proposed Draft Section 61 Findings
LIST OF ATTACHMENTS
VOLUME 1
Attachment A
Distribution List
Attachment B
Responses to Comments and Secretary’s Certificates on the Project
Attachment C
Article 97 Legislation (Chapter 267 of 2008)
Attachment D
Preliminary LEED-ND Checklist
VOLUME 2
Attachment E
Transportation – Supporting Documentation
Attachment F
Chapter 91 – Supporting Documentation
Attachment G
Wetlands – Supporting Documentation
Attachment H
Drainage Backup
Attachment H
Drainage Full Size Plans
Attachment I
Wastewater – Supporting Documentation
LIST OF FIGURES
1.1
Illustrative Site Plan
1.2
Aerial View
1.3
View from C Street looking at Draw 7
Park Entry
1.4
Site Location Map
1.5
Existing Conditions Site Plan
1.6
Proposed Conditions Plan
1.7
Ground Floor Plan
1.8
Upper Floor Plan
1.9
Phasing Plan 1A
1.10
Phasing Plan 1B
1.11
Phasing Plan 1C
1.12
Phasing Plan – Future
1.13
View of the Riverfront Park
1.14
Plan of Assembly Square
1.15
View of Assembly Square
1.16
Plan of the Main Street Mall
1.17
View of Main Street Mall
1.18
View of Main Street Looking South
1.19
Plan of South Gateway
1.20
Plan of D Street Place
1.21
Plan of G Street Place
1.22
Conceptual Landscape Plan
2.1
Illustrative Site Plan – DEIR
2.2
Expanded Riverfront Park Alternative
4.1
Study Area Map
4.2
Assembly Square Circulation Patterns
4.3
Pedestrian and Bicycle Circulation
4.4
Transportation Mitigation Off-site
4.5
Lombardi Street Improvements
4.6
Route 28 at Middlesex Avenue/Assembly
Square Drive
4.7
Route 28 at Mystic Avenue Northbound
4.8
Mystic Avenue at New Road
4.9
Middlesex Avenue at Foley Street
4.10
Kensington Avenue Pedestrian Improvements
4.11
Conceptual Layout: U-Turn Mystic Avenue
Northbound to Mystic Avenue Southbound
4.12
IKEA Trip Distribution
4.13
Retail Trip Distribution
4.14
Residential Trip Distribution
4.15
Office Trip Distribution
4.16
Existing Bus Routes
4.17
Traffic Monitoring
4.18
Traffic Management/Construction
Truck Route Plan
6.1
Existing Wetland and Tidelands
6.2
Proposed Conditions: Chapter 91 Jurisdiction
6.3
Chapter 91 and Local Zoning Building
Height Limitations
6.4
Chapter 91 Proposed Open Space
6.5
Proposed Shadows: March 21
6.6
Proposed Shadows: June 21
6.7
Proposed Shadows: September 21
6.8
Proposed Shadows: December 21
7.1
Property Ownership Plan
7.2
Plan of Reconstructed Entry to Draw 7 Park
7.3
DCR Exchange Plan
8.1
Existing Wetland and Resources Plan
8.2
Proposed Stormwater Outfall Location
8.3
Existing Drainage Areas Plan
8.4
Proposed Drainage Areas Plan
8.5
Existing Drainage Plan
8.6
Proposed Drainage Plan
8.7
Outfall Plan and Profile – A
8.8
Outfall Plan and Profile – B
8.9
Outfall Plan and Profile – C
8.10
IKEA Rain Garden
8.11
Conceptual LID Plan
8.12
Ten Hill Outfall Profile
9.1
Stormwater Infrastructure and
Contaminated Sites
10.1
Existing Wastewater Systems Plan
10.2
Proposed Wastewater Systems Plan
10.3
Sewer Mitigation Plan – Ten Hills Neighborhood
10.4
Ten Hill Outfall Profile