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Plans and Reports
HillClouds.jpg Below are current and past planning documents and reports created for, or of significance to,​ the Historic Columbia River Highway.

2016 Plans and Reports

Gorge Hubs Project

Kiosk Layout Diagram​ - April 18, 2016 (PDF, 3.71MB)

TIGER Grant Application 

Below are the materials for the TIGER Grant to secure funding for the next segment of Historic Highway State Trail. 

Natural Resource Elements Conflict Memo - June 29, 2011 (PDF, 1.33MB)

2015 Plans and Reports

US Forest Service National Scenic Area Application for the State Trail (Gorton Creek to Lindsey Creek) Project

* Note: These files are large and will take time to load.

Hood River County Application​ (You may request electronic copies​ of the following attachments) - October 2015 (PDF, 12.8MB)
Attachment A - Engineering Plans and DAP Narrative Attachment H Biological Research and Impact Assessment Report
Attachment B - Landscape Architecture Plan
Attachment I - Biological Evaluation
​Attachment C - Grading Plan Attachment J - Erosion and Sediment Control Plan
​Attachment D - Storm​water Treatment Plan Attachment K Mitigation Plan
​Attachment E - Grading Plan Narrative Attachment L - Agency Correspondence 
Attachment G - Cultural Resource Study

Mitchell Point Tunnel Alternatives​ Study

A report evaluating the alternatives to get around, through or over Mitchell Point. Three of the alternatives used the alignment of the old highway, while one used the shoulder of I-84 and two options went up and over the saddle between Big and Little Mitchell. 

Final Report - June 2015 (PDF, 7.99MB)

Alternative Comparison Table​ - June 2015 (PDF, 189KB)  

2015 Progress Report

Final Report - 2015 (PDF, 2.25MB)

Gorge Hubs Project

ODOT worked with local communities to develop designs for bicycling hubs that would serve as resting and "refueling" stations for Historic Columbia River Highway State Trail users. Below are the final designs for each of the Gorge communities that participated in the planning project.

Style Guide for the Gorge Hubs​ - August 2015 (PDF, 2.53MB)

Wood Village (PDF, 3MB) Hood River (PDF, 5.8MB)
Troutdale (PDF, 5.5MB) The Dalles (PDF, 2.6MB)
Cascade Locks (PDF, 3.8MB) Mosier​ (PDF, 3.4MB)

US Forest Service National Scenic Area Application for the State Trail (Lindsey Creek to Starvation Creek) Project

* Note: These files are large and will take time to load.

National Scenic Area (NSA) Application​ - July 2014 (PDF, 1.08MB)​
Attachment A - DAP Report Narrative (PDF, 1.1MB) Attachment K - SNR Maps (PDF, 426KB)
Attachment B - Plan Set (PDF, 12.6MB)
Attachment L - Wayfinding Signage Plan (PDF, 2.6MB)
Attachment C - Landscape Architecture Plan (PDF, 2.2MB) Attachment M - Erosion Control Plan (PDF, 2.2MB)
Attachment D - Stormwater Treatment Plan (PDF, 442KB) Attachment N - Agency Comments (PDF, 760KB)
Attachment E - Grading Plan Narrative (PDF, 338KB) Attachment O - Abbreviated Columbia Tributaries East Watershed (PDF, 1.1MB)
Attachment F - Cultural Resources Recon (PDF, 2MB) Attachment P - Wetland Delineation Report (PDF, 17.3MB)
Attachment G - Visual Resource Assessment (PDF, 25.8MB) Attachment Q - Site map (PDF, 5.3MB)
Attachment H - Biological Report: BA (PDF, 5.9MB) US Forest Service Land Use Findings (PDF, 50KB)
Attachment I - Biological Report: BE (PDF, 1.4MB) Segment D - NSA Table (PDF, 102KB)
Attachment J - Biological Report: BRIAR (PDF, 6.1MB)

Hood River County National Scenic Area Application for the State Trail (Lindsey Creek to Starvation Creek) Project

* Note: These files are large and will take time to load.

Hood River County Application​ - July 2014 (PDF, 1.08MB)
Attachment A - DAP Report Narrative (PDF, 1.1MB) Attachment L - Wayfinding Signage Plan (PDF, 2.6MB)
Attachment B - Plan Set (PDF, 12.7MB)
Attachment M - Erosion Control Plan (PDF, 2.2MB)
​Attachment C - Landscape Architecture Plan (PDF, 4.2MB) Attachment N - Agency Comments (PDF, 760KB)
​Attachment D - Stormw​ater Treatment Plan (PDF, 442KB) Attachment O - Abbreviated Columbia Tributaries East Watershed (PDF, 1.1MB)
Attachment E - Grading Plan Narrative (PDF, 338KB) Attachment P - Wetland Delineation Report (PDF, 17.3MB)
Attachment G - Visual Resource Assessment (PDF, 25.8B) Attachment Q - Site map (PDF, 5.3MB)
Attachment J - Biological Report: BRIAR (PDF, 6.1MB) Segment D - NSA Table (PDF, 102KB)

Historic Columbia River Highway State Trail (Starvation Creek to Lindsey Creek)

70% Design Plans - February 2015 (PDF, 26.8MB)

2014 - 1981 Plans and Documents

2013 Year End Review: Historic Columbia River Highway Projects

PowerPoint Presentation to the Historic Columbia River Highway Advisory Committee - 2013 (PDF, 30.3MB)

Historic Columbia River Highway Wayfinding (signage) Plan

Final Plan - 2013 (PDF, 2.6MB)

  • Construction Story of the Historic Columbia River Highway

Final Document​ 2013 (PDF, 107KB)

Chronology of the Historic Columbia River Highway Construction

Final Document 2013 (PDF, 114KB)​

Historic Columbia River Highway State Trail: Rockfall​ Hazards and Risk Management Study 

Final Report - 2012 (PDF, 11.4MB)

State Trail Guidelines

Final Report - 2011 (PDF, 11.3MB)​ 

Interstate 84: Corridor Strategy 

Historic Columbia River Highway State Trail Plan 

Complete State Trail Plan - 2011 (PDF, 18.3MB) 
​Plan Update: Preliminary Environmental Constraints Analysis - 2011 (PDF, 308KB) ​ ​

Historic Columbia River Highway Cultural Landscape Inventory

Complete Cultural Landscape Inventory - 2011 (PDF, 11MB) ​ ​

Historic Columbia River Highway Cultural Landscape Inventory: Lindsey Creek to Ruthton Point

​​​Cultural Landscape Inventory Presentation​​ - 2009 (PDF, 6.97MB)

Historic Columbia River Highway Oral History

Final Report​ - 2009 (PDF, 19.3MB)

Milepost 2016 Reconnection Projects

The “Milepost 2016 Reconnection Projects” identifies specific improvements that will be required to allow total reconnection of the Historic Highway, creating a continuous picturesque trail through the Gorge by 2016.

Executive Summary - 2009 (PDF, 3.5MB)
Watch the Milepost 2016 video. ​

Historic Columbia River Highway Master Plan

Master Plan Cover Page​ - 2006 (PDF, 149KB) ​ 

Historic Columbia River Highway Master Plan

Historic Columbia River Highway Guide for Maintenance

National Historic Landmark Nomination

Restoration of the Hood River to Mosier Segment

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