PORTLAND TO LINCOLN CITY CORRIDOR Oregon Highways 99W and 18 1-5 to U.S. 101 INTERIM CORRIDOR STRATEGY Oregon Department of Transportation CH2M HILL Ieanne Lawson Associates March 1997 Contents Chapter Page ES Executive Summary ........................................................................................................... ES-1 1 Overview of Corridor Planning ......................................................................................... 1-1 Introduction ............................................................................................................................ 1.1 . Corridor Planning Description and Purpose ..................................................................... 1-1 Planning Requirements ................................................................................................... 1-3 Corridor Planning Process ................................................................................................... 1-4 Corridor Planning Participants .......................................................................................... 1-6 2 Corridor Overview .............................................................................................................. 2-1 General Corridor Description .............................................................................................. 2-1 Summary of Prior Plans and Studies ............................................................................... 2-3 Population and Employment Projections .......................................................................... 2-5 Growth of Tourism and Recreational Travel .................................................................. 2-9 3 Existing Conditions .............................................................................................................. 3-1 Highway System ................................................................................................................... 3-1 Railroads ............................................................................................................................. 3-13 Air Service............................................................................................................................. 3-13 Public Transit and Intercity Bus Service.......................................................................... 3-14 Bicycles .................................................................................................................................. 3-14 Pedestrians ........................................................................................................................... 3-16 Pipelines ............................................................................................................................... 3-16 Environment ......................................................................................................................... 3-16 4 Future Conditions ................................................................................................................. 4-1 Highway System .................................................................................................................... 4-1 ail ................................................................................ :......................................................... 4-12 Air Service .......................... .... ......................................................................................... 4-12 Transit ...................... ....... ............................................................................................. 4-13 Bicycle ............. .................. .................................................................................... 4-13 Pedestrians ...............~..~........................................................................................................ 4-14 5 Issues. Opportunities. and Constraints ............................................................................ 5-1 Transportation Balance ......................................................................................................... 5-1 Regional Connectivity ........................................................................................................... 5-5 Highway Congestion ............................................................................................................ 5-8 Safety ....................................................................................................................................... 5-9 Economic Impacts ................................................................................................................ 5-10 Social Impacts ....................................................................................................................... 5-11 Environmental Impacts ....................................................................................................... 5-12 Energy Impacts ............................................................................................................. 5-13 Contents. Continued Chapter Page 6 Interim Corridor Strategy ................................................................................................... 6-1 Transportation Balance ........................................................................................................ 6-1 Regional Connectivity ........................................................................................................... 6-5 Congestion .............................................................................................................................. 6-6 Safety ....................................................................................................................................... 6-9 Economic Impacts ................................................................................................................ 6-10 Social Impacts ....................................................................................................................... 6-10 Environmental Impacts ....................................................................................................... 6-11 Energy Impacts .................................................................................................................... 6-13 Appendices A Summary of Plans and Studies B Overview of Portland-Lincoln City Corridor C Conidor Segment Inventory D Issues Document E Open House Summary Tables 2-1 Population Forecasts ................................... ...- ...................................................................... 2-6 2-2 Employment Forecasts ........................................................................................................ 2-9 3-1 Highway Accident Rates. 1991-1993................................................................................... 3-8 3-2 Highway Fatalities, 1991-1993 ............................................................................................. 3-9 3-3 Highway 99W / 18 Corridor Bus Travel ........................................................................... 3-15 4-1 Year 2015 Estimated Levels of Service............... ... ........ ... ............................... 4-8 Figures ES-1 Corridor Location ...................... ... .............................................................................. ES-3 1-1 Corridors of Interstate and Statewide Importance ........................................................ 1-2 1-2 Corridor Planning Process and Phases ............................................................................. 1-5 2-1 Highway 99W/18 Corridor .................................................................................................. 2-2 2-2 Trends in Population Growth .............................................................................................. 2-7 2-3 Trends in Employment Growth ...................................... .. .................................................. 2-8 3-1 1994 Annual Average Daily Traffic in Vehicles per Day ............................................... 3-2 3-2 Existing and Historic Traffic Volumes ............................................................................. 3-4 3-3 Monthly ADT Variation at Newberg ATR (1994)............................................................. 3-5 Contents. Continued Chapter Page 3-4 1994 Accident Distribution .......................................................................................... 3-11 3-5 Rail Carriers in Northwest Oregon ................................................................................... 3-12 4-1 Traffic Volume Projections ................................................................................................... 4-3 4-2 Tualatin-Shenvood Highway .............................................................................................. 4-4 4-3 Newberg-Dundee Bypass ..................................................................................................... 4-5 4-4 Projected Travel Times ............................ :............................................................................. 4-7 4-5 Present and Future Highway Congestion.......................................................................... 4-9 4-6 Highway Lane Requirements .......................................................................................... 4-10 Executive Summary What Is Corridor Planning and Why Is It Being Done The Oregon Department