New England East-West Solution (NEEWS)

Greater Springfield Reliability Project (GSRP)

Interstate Reliability Project (Interstate)
Project Description
Public Involvement
Archived Documents Municipal Consultation Process Supplemental Municipal Consultation Filing (2011) Open Houses (2011) Municipal Consultation Filing (2008) Contact Information

Central Connecticut Reliability Project (Central)

Public Involvement

To learn more about the siting process and opportunities for you to participate, click here or go directly to the Connecticut Siting Council (CSC) website.

Connecticut Siting Council Filing

On December 23, 2011, CL&P applied to the CSC for Certificates of Environmental Compatibility and Public Need for the construction of the Connecticut portion of the Interstate Reliability Project.

The Interstate Reliability Project is a proposed 345-kV high-voltage transmission line that will strengthen the interstate transfer of electricity across Connecticut, Rhode Island and Massachusetts, and includes substation and switching station upgrades.

The project will span both CL&P and National Grid's service areas. The proposed CL&P route uses existing CL&P right-of-way beginning in Lebanon and continuing through Columbia, Coventry, Mansfield, Chaplin, Hampton, Brooklyn, Pomfret, Killingly, Putnam and Thompson, ending at the Connecticut/Rhode Island border. The route would then continue through National Grid's service areas in Rhode Island and Massachusetts, ending in Millbury, Massachusetts.

The filing consists of 11 volumes. Please note that volumes that contain photographs are quite large and may take a considerable amount of time to download if you are using a 28K or 56K modem.

• VOLUME 1 – PROPOSED PROJECT: DETAILED DESCRIPTION
  • Executive Summary (1.17MB)
  • Formal Requirements (84KB)
  • Section 1: Description of the Proposed Project (382KB)
  • Section 2: Project Background and Need (644KB)
  • Section 3: Technical Project Specifications (82KB)
    • Appendix 3A – Cross Sections (2.61MB)
    • Appendix 3B – Illustrations of Transmission Line Structure Types (1.17MB)
  • Section 4: Construction and Operation/Maintenance Procedures (274KB)
  • Section 5: Description of Existing Environment (539KB)
  • Section 6: Potential Environment Effects and Mitigation Measures (318KB)
  • Section 7: Electric and Magnetic Fields (6.29MB)
  • Section 8: Proposed Project Schedule (155KB)
  • Section 9: Permits, Approvals, and Consultations (85KB)
  • Section 10: Transmission Line Design and Right-of-Way Configuration Options in Mansfield Hollow (6.58MB)
• VOLUME 1A: ALTERNATIVE ANALYSES, INCLUDING ROUTE VARIATIONS
  • Section 11: Alternative Analyses: Introduction (39KB)
  • Section 12: No Action Alternative (34KB)
  • Section 13: System Alternatives (1.70MB)
  • Section 14: Transmission Line Route/Configuration Alternatives (1.78MB)
  • Section 15: Potential Transmission Line Route Variations (4.28MB)
  • Section 16: Proposed Substation and Switching Station Modifications: Alternatives Review (38KB)
  • Section 17: Application Directory (98KB)
  • Section 18: Glossary and Terms (76KB)
• VOLUME 2 – ENVIRONMENTAL: WETLANDS/WATERCOURSES REPORT
  • Sections 1-6 (92KB)
  • Appendix A (99KB)
  • Appendix B (983KB)
  • Appendix C (6.13MB)
  • Appendix D (144KB)
  • Appendix E (906KB)
  • Appendix F (615KB)
• VOLUME 3 – ENVIRONMENTAL: CULTURAL RESOURCES
  • Sections 1-3 (522KB)
  • Appendix 1 (6.20MB)
  • Appendix 2 (1.57MB)
  • Appendix 3 (1.83MB)
• VOLUME 4 – ENVIRONMENTAL
  • Introduction (425KB)
  • Ex. 1 Breeding Bird Report (684KB)
    • Table 4-1 Habitat Type (466KB)
    • Breeding Bird Inventory (2.62MB)
  • Ex. 2 Insect Report (2.40MB)
  • Ex. 3 Inventory -- Vernal Pools & Amphibian (5.88MB)
  • Ex. 4 Agency Correspondence (7.12MB)
• VOLUME 5 – PLANNING
  • Exhibit 1 -- Report 1 -- Need Analysis (388KB)
  • Exhibit 2 -- Report 2 -- Options Analysis (1.06MB)
  • Exhibit 3 -- Solutions Reports (4.06MB)
  • Exhibit 4 -- Component Updated Needs Assessment (2.52MB)
  • Exhibit 5 -- Non-Transmission Alternatives Report (3.44MB)
• VOLUME 6 – NORTHEAST UTILITIES' BEST MANAGEMENT PRACTICES
  • Best Management Practices (8.53MB)
  • Overhead Transmission Line Standards (919KB)
• VOLUME 7 – SUBSTATION AND SWITCHING STATION DRAWINGS (37KB)
  • Exhibit 1 (2.00MB)
  • Exhibit 2 (2.31MB)
  • Exhibit 3 (3.16MB)
• VOLUME 8 – PHOTOGRAPHS, VISUAL SIMULATIONS, AND VISUAL RESOURCES REPORT
  • Report (1.08MB)
  • Appendix A (7.83MB)
  • Appendix B (9.38MB)
  • Appendix C (6.48MB)
  • Appendix D (4.64MB)
• VOLUME 9 – 400-SCALE MAPS
  • Introduction (37KB)
  • Exhibit 1 -- Overview of Route on USGS Map
    • Map Symbols & Map 1 (1.15MB)
    • Map 2 (916KB)
    • Map 3 (855KB)
    • Map 4 (902KB)
    • Map 5 (899KB)
    • Map 6 (927KB)
    • Map 7 (958MB)
    • Map 8 (947KB)
    • Map 9 (954KB)
  • Exhibit 2 -- Proposed Route Aerial Photographs (32.93MB)
  • Exhibit 2A -- Mansfield Hollow Configuration Options (2.98MB)
  • Exhibit 3 -- Variations Aerial Photographs (22.31MB)
• VOLUME 10 – CROSS SECTIONS AND PLAN AND PROFILES (174KB)
  • Exhibit 1 -- Cross Sections & Photo Simulations (7.85MB)
  • Exhibit 2 -- Plan & Profile Drawings (26KB)
  • Card Street Substation & Babcock Hill Road (2.92MB)
  • Babcock Hill Junction & Day Street Junction
    • Drawings 1-7 (6.17MB)
    • Drawings 8-17 (10.94MB)
    • Drawings 18-24 (6.49MB)
  • Day Street Junction & Lake Road Substation (6.04MB)
  • Lake Road Substation & Rhode Island State Line (7.97MB)
  • Focus Area A (2.76MB)
  • Focus Area D (1.49MB)
  • Focus Area E (937KB)
• VOLUME 11 – 100-SCALE MAPS
  • Introduction (96KB)
  • Index (85KB)
  • Maps 1-5 (4.83MB)
  • Maps 6-10 (5.35MB)
  • Maps 11-15 (4.80MB)
  • Maps 16-20 (4.51MB)
  • Maps 21-25 (4.40MB)
  • Maps 26-30 (4.55MB)
  • Maps 31-35 (3.04MB)
  • Maps 36-40 (3.52MB)
  • Maps 41-45 (4.66MB)
  • Maps 46-50 (4.53MB)
  • Maps 51-55 (5.16MB)
  • Maps 56-60 (5.87MB)
  • Maps 61-65 (4.67MB)
  • Maps 66-70 (5.40MB)
  • Maps 71-75 (5.10MB)
  • Maps 76-80 (5.10MB)
  • Maps 81-85 (4.85MB)
  • Maps 86-90 (6.26MB)
  • Maps 91-95 (4.94MB)
  • Maps 96-100 (4.61MB)
  • Maps 101-105 (4.37MB)
  • Maps 106-110 (4.46MB)
  • Maps 111-115 (3.88MB)
  • Maps 116-120 (4.15MB)
  • Maps 121-125 (4.86MB)
  • Maps 126-130 (4.72MB)
  • Maps 131-134 (3.92MB)
• LIST OF TABLES (36KB)
• LIST OF FIGURES (24KB)