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Portland Water Bureau

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Type III Conditional Use, Environmental, & Tree Reviews Application - July 2015

Narrative 

  • Background Information and Context
  • Proposed Conditional Use, Environmental & Tree Review Findings

Appendices

Figures

  • Figure 1: Design Proposal (Page 3)
  • Figure 2: The Bull Run pipeline to Portland (Page 5)
  • Figure 3: Portland’s Drinking Water System (Page 7)
  • Figure 4: Olmsted View over Reservoir 4 of Vista Bridge and Downtown Portland (Page 7)
  • Figure 5: 1981 Master Plan cover (Page 9)
  • Figure 6: Outline of landslide (Turner Schuster) (Page 10)
  • Figure 7: Early landslide damage to Reservoir 4 (Page 11)
  • Figure 8: Reservoir basin deterioration due to aging and slide movement (Page 11)
  • Figure 9: CSB members rating design options (Page 13)
  • Figure 10: Attendees at a public open house (Page 14)
  • Figure 11: Community members next to reservoir tour (Page 15)
  • Figure 12: “Opportunities” themes from stakeholder interviews (Page 16)
  • Figure 13: Design Options for Reservoir 3 & Reservoir 4 (Page 16)
  • Figure 14: Public preferred design option (aka Design Concept) (Page 17)
  • Figure 15: Design Proposal (Page 21)
  • Figure 16: Design Proposal (Page 24)
  • Figure 17: Reservoir 4 and Gate House 4 2014 (Page 26)
  • Figure 18: View from Dam 3 to Lower Reflecting Pool and Lowland Habitat (Page 26)
  • Figure 19: Potentially Affected Area ‐ WPR Historic District and Proposed Water System Improvement Area (Page 28)
  • Figure 20: Potentially Affected Area Zoning Map (Page 29)
  • Figure 21: New Below‐Ground Reservoir & Reflecting Pools (Page 32)
  • Figure 22: Profile Showing Extent of Landslide above Reservoir 4 (Page 33)
  • Figure 23: Grand Stairway View: View of Upper Reflecting Pool from Grand Stairway (Page 35)
  • Figure 24: Proposed Access and Circulation  (Page 36)
  • Figure 25: Marking existing Reservoir 4 Edge (Page 37)
  • Figure 26: Gate House 3 Entry View: Gate House 3 and Upper Reflecting Pool (Page 38)
  • Figure 27: Restored Historic District Views and Accessible Viewpoints (Page 39)
  • Figure 28: Olmsted View: View from Sherwood Blvd., existing photo and proposed rendering (Page 39)
  • Figure 29: Conceptual view from Dam 3, south toward Gate House 4 and Reservoir 4 (Page 40)
  • Figure 30: New "Grand Stairway" pedestrian entrance to site (Page 42)
  • Figure 31: Reservoir 4 as proposed, and as originally designed in 1894 (Page)
  • Figure 32: Illuminated and Accessible Dam 3, Lower Reflecting Pool and Lowland Habitat (Page 44)
  • Figure 33: Washington Park and Hoyt Arboretum Loop Drive (Page 45)
  • Figure 34: Scenic Overlay Zone following Sacajawea Blvd: (Page 46)
  • Figure 35: Circulation Plan (Page 49)
  • Figure 36: Parking Spaces near Entry Points (Page 52)
  • Figure 37: Arlington Heights residential area northwest of (Page 54)
  • Figure 38: Goose Hollow residential area east of  (Page 54)
  • Figure 39: Fence Plan (Page 57)
  • Figure 40: Environmental Zones (Page 58)
  • Figure 41: Proposed Design with Environmental (c and p) Zones and Transition Areas (Page 60)
  • Figure 42: City designated Scenic Views and Corridors near Reservoir Site (Page 73)
  • Figure 43: Washington Park and Hoyt Arboretum Loop Drive (Page 74)
  • Figure 44: Scenic Overlay Zone following Sacajawea Boulevard (Page 74)