Historic Documents

• Original Machinery Drawings 1-5 
• Original Machinery Drawings 6-10
• Original Machinery Drawings 11-16
• Original Elevation Drawings 1-5
• Original Fabricator Drawings 
• Original Shop Drawings  
• Original Structural Drawings 01-09 
• Original Structural Drawings 10-19 
• Original Structural Drawings 20-29 
• Original Structural Drawings 30-39    
• Original Structural Drawings 40-47    
• Original Structural Elevations 01-02    
• Plan Profile  
• Foundation   
• Foundation Revised  
• Repair Sheet - 1953
• Historic Marker I
• Historic Marker II
• Historic Marker III
• National Register of Historic Places Nomination
• Letter of Recognition - National Register
• Historic Baseline Report

Construction Documents

• Final Plans - Phase I   
• Oregon Transportation Grant Phase I  
• Limited Inspection of Lifting Bridge
• Lift Tower Inspection and Counterweight Memo
• GeoTech Technical Memo    
• Counterweight Pin and Hanger Testing Memo 

Preliminary Documents

• Alternatives Analysis Memorandum  
• Archaeological Survey Report   
• Design Criteria Memorandum  
• Field Inspection and Condition Report         
• Level 2 - Preliminary Site Investigation  
• Regulatory Compliance Memorandum  
• Scour Analysis and Design Report 
• Trail Master Plan Coordination Memo   
• Utility Assessment Memorandum  

Staff Contacts

Todd Klocke - 503.588.6178