Document Library

NEPA Study Documents

The National Environmental Policy Act (NEPA) is a United States environmental law designed to promote the enhancement of the environment.

The Environmental Assessment/Draft Section 4(f) Evaluation is a full disclosure document that details the process through which a transportation project was developed, and includes consideration of a range of reasonable alternatives, analyzes the potential impacts resulting from the alternatives, and demonstrates compliance with applicable environmental laws and executive orders.

The entire Environmental Assessment/Draft Section 4(f) Evaluation is posted below in the following links. These documents can be downloaded and printed.

Please note that not all of the pages in the document are compliant with the Americans with Disabilities Act (ADA).

Public comments on this document were accepted through December 14, 2018.

Fully Compiled Environmental Assessment

Volume 1: Document
Volume 2: Appendicies

Environmental Assessment Sections

Report Title / Cover Page (1-Page)

Agency Signature (1-Page)

Table of Contents (14-Pages)

Executive Summary (14-Pages)

Chapters

1: Introduction to the Project (20-Pages)
2: Alternatives Screened and Evaluated (60-Pages)
3: Affected Environment (103-Pages)
4: Environmental Consequences and Mitigation (84-Pages)
5: Draft Section 4(f) Evaluation (29-Pages)
6: Environmental Commitments (4-Pages)
7: Coordination and Consultation (4-Pages)

Appendices

A: List of Preparers (6-Pages)
B: Agency Correspondence (67-Pages)
C: Cowardin Classifications (2-Pages)
D: Visualizations of Existing and Proposed Conditions (16-Pages)
E: Distribution List and Notice of Availability (16-Pages)
F: Air Quality Analysis Report (154-Pages)
G: Technical Feasibility Report (49-Pages)
H: Hazardous Materials Evaluation Report (28-Pages)
I: Traffic Analysis (61-Pages)
J: Rail and Transit Assessment Report (32-Pages)

NEPA requires federal agencies to assess the environmental effects of their proposed actions prior to making decisions.

Learn More about NEPA

Manual that documents NHDOT's approach to public involvement during the environmental review process.

View NEPA Public Involvement Plan Manual

Section 4(f) refers to an act that provides consideration for park and recreation lands, wildlife, and historic sites during transportation project development.

Learn More About Section 4(f)

National Historic Preservation Act of 1966, requires that each federal agency identify and assess the effects its actions may have on historic buildings.

Learn More About Section 106

Consulting Party Process in New Hampshire

In the National Historic Preservation Act (NHPA), Congress established a comprehensive program to preserve the historical and cultural foundations of the Nation as a living part of community life. Section 106 of NHPA is crucial to that program, because it requires consideration of historic preservation in the multitude of Federal actions that take place nationwide and throughout New Hampshire.

Section 106 Consulting Party Handout