NHX DOCUMENT ARCHIVE
Documents, materials, and reports developed in support of the NHX project are posted below and can be reviewed by clicking on the buttons. These items are posted for reference purposes. New materials will be added as they are completed.
REPORTS
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FEASIBILITY STUDY (Archived)
Feasibility Study Report (July 2023)​​​
Attachment A: Preliminary Alignments
Attachment B: Traffic Analyses
Attachment C: Environmental Mapping
Attachment D: Build Alternatives with Environmental Features
Attachment E: Public Involvement Summary
Part 5​​
Feasibility Study Amendment (December 2024)
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REGULATED MATERIALS REVIEW (Archived)
Regulated Materials Review Assessment Report (November 2025)
Regulated Materials Review Screening - West Section (October 2024)
Regulated Materials Review Screening - Central Section (December 2024, revised)
Regulated Materials Review Screening - East Section (October 2024)
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PHASE 1 HISTORY/ARCHITECTURE SURVEY (Archived)
Phase 1 History / Architecture Survey Report (May 2025)
Appendices (May 2025)
Phase 1 History / Architecture Survey Report - Addendum (October 2025)
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LEVEL 1 ECOLOGICAL SURVEY (Archived)
Ecological Survey Report (October 2025)
Appendices (October 2025)
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ADDITIONAL DOCUMENTS
(Documents are listed in chronological order with most recent dates first)