NHX DOCUMENT ARCHIVE
Reports and documents developed in support of the NHX project are posted below. These items have been made available for reference purposes are listed in chronological order with most recent dates first. Files that are larger than 50MB in size will default to downloading instead of opening in another browser. New materials will be added as they are completed.
Section 4(f)/6(f) Determination Request Form for Recreational Properties (July 2026)
Intersection Control Evaluation (May 2026) - Archived
Community Impact Assessment (March 2026) - Archived
REGULATED MATERIALS REVIEW
Regulated Materials Review Assessment Report (November 2025) - Archived
- Regulated Materials Review Screening - West Section (October 2024) - Archived
- Regulated Materials Review Screening - Central Section (December 2024, revised) - Archived
- Regulated Materials Review Screening - East Section (October 2024) - Archived
Freshwater Mussel Survey (November 2025) - Archived
LEVEL 1 ECOLOGICAL SURVEY
Ecological Survey Report (October 2025) - Archived
Report Appendices (October 2025) - Archived
Traffic Noise Analysis (September 2025) - Archived
Qualitative Mobile Source Air Toxics (MSAT) Analysis (June 2025) - Archived
Recommended Preferred Alternative Map (June 2025) - Archived
NHX Project Fact Sheet (June 2025) - Archived
Hoja De Datos Del Proyecto (junio de 2025) - Archivado
PHASE 1 HISTORY/ARCHITECTURE SURVEY
Phase 1 History / Architecture Survey Report (May 2025) - Archived
Report Appendices (May 2025) - Archived
Phase 1 History / Architecture Survey Report - Addendum (October 2025) - Archived
Farmland Conversion Impact Rating (January 2025) - Archived
FEASIBILITY STUDY (July 2023)
Feasibility Study Report - Archived
Attachment A: Preliminary Alignments - Archived
Attachment B: Traffic Analyses - Archived
Attachment C: Environmental Mapping - Archived
Attachment D: Build Alternatives with Environmental Features - Archived
Attachment E: Public Involvement Summary
Part 5 - Archived
Feasibility Study Amendment (December 2024) - Archived
Environmental DNA Freshwater Mussel Surveys (February 2023) - Archived
NHX Project Fact Sheet (January 2023) - Archived
Hoja De Datos Del Proyecto (enero de 2023) - Archivado
Project Development Process Fact Sheet (January 2023) - Archived
Proceso De Desarrollo De Proyectos (enero de 2023) - Archivado
Purpose & Need Statement (February 2022) - Archived