Finding of No Significant Impact (FONSI)

A Finding of No Significant Impact (FONSI) is a document prepared under the National Environmental Policy Act (NEPA) that explains why a proposed federal action will not have a significant effect on the human environment. Essentially, it means that the Environmental Assessment (EA) conducted for the project has determined that the impacts are not significant enough to warrant a more detailed Environmental Impact Statement (EIS). The FONSI includes the EA or a summary of it, and it provides the rationale for the decision, ensuring transparency and public involvement in the decision-making process. This helps streamline projects while still maintaining environmental protections.

I-526 @ Long Point Road Interchange Improvements Finding of No Significant Impact

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-D: Synchro Results

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 F: Natural Resources

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 (Part 1)

Appendix M: Cultural Resources Survey (Part 2)

Appendix N: Cultural Resources Memorandum of Agreement

Appendix O: Agency Coordination

Appendix P: Public Involvement Plan

Appendix Q: Public Involvement and Outreach Materials (Part 1)

Appendix Q: Public Involvement and Outreach Materials (Part 2)

Appendix Q: Public Involvement and Outreach Materials (Part 3)

Appendix R: Floodplain

Appendix S: Greenhouse Gas Analysis

Appendix T: Air Quality Analysis

Appendix U: Alternative Analysis Technical Memo

Appendix V: I-526 Final PEL Study Report

Environmental Assessment (EA)

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 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: