Environmental Assessment
Environmental Assessment (EA)
The National Environmental Policy Act (NEPA) requires federal agencies to consider the impacts their projects may have on the environment and to integrate the NEPA process with other environmental law compliance. In association with the Federal Highway Administration (FHWA), SCDOT has developed an Environmental Assessment (EA) in accordance with NEPA. The EA includes a review of all proposed alternatives and evaluates potential impacts to the natural and human environment. This EA is the culmination of technical studies and reports, interagency coordination, and community outreach and feedback. The EA documents the purpose and need for the project; presents a discussion of the alternatives and the analysis of them; describes the affected environment, assessment of the environmental, transportation, social, and economic impacts; identifies potential community enhancements; and presents a Recommended Preferred Alternative. It also incorporates analysis and feedback from public and agency sources gathered during the various phases of the EA development. We encourage you to explore the EA and its detailed appendices at the links below.
I-526 @ Long Point Road Interchange Improvements Environmental Assessment
Appendices:
Appendix A: Traffic Analysis Report Table of Contents
Appendix A-A: Long Point Road Design Hour Volumes Tech Memo (Part 1)
Appendix A-A: Long Point Road Design Hour Volumes Tech Memo (Part 2)
Appendix A-A: Long Point Road Design Hour Volumes Tech Memo (Part 3)
Appendix A-B: PEL Study Report
Appendix A-C: Highway Capacity Software Reports
Appendix A-E: SimTraffic Reports
Appendix A-F: Simulation Results
Appendix A-G: Highway Capacity Software Reports - Preferred Alternative 2
Appendix A-H: Simulation Results
Appendix A-I: 2030 Westbound Merge Mitigation Analysis
Appendix A-J: Belle Hall Parkway Left Turn Vissim Analysis
Appendix A-K: Wando Port Terminal North Gate Traffic Analysis
Appendix B: Community Impact Assessment
Appendix C: Visual Impact Assessment
Appendix D: Relocation Impact Study
Appendix E: Noise Analysis Report
Appendix G: Preliminary Jurisdictional Determination
Appendix H: Critical Area Plat
Appendix I: Bridge Risk Trip Assessment
Appendix J: Biological Evaluation
Appendix K: Essential Fish Habitat
Appendix L: Hazardous Materials
Appendix M: Cultural Resources Survey
Appendix N: Cultural Resources Memorandum of Agreement
Appendix O: Agency Coordination
Appendix P: Public Involvement Plan
Appendix Q: Public Involvement and Outreach Materials
Appendix S: Greenhouse Gas Analysis
Appendix T: Air Quality Analysis
Appendix U: Alternative Analysis Technical Memo
Appendix V: I-526 Final PEL Study Report
View In Person:
Hard copies of the Environmental Assessment (EA) were available to view at:
SCDOT District 6 Office (6355 Fain Blvd., Building A, N. Charleston, SC 29406)
I-526 Lowcountry Corridor Community Office (5627 Rivers Ave., N. Charleston, SC 29406)
SCDOT Headquarters (955 Park Street, Columbia, SC 29202) - To schedule an appointment, call 855-467-2368.
Mount Pleasant Library (1133 Mathis Ferry Road, Mount Pleasant, SC 29464)
In-person Public Hearing on May 2, 2023 at Mount Pleasant Town Hall (100 Ann Edwards Ln., Mount Pleasant, SC 29464)