SFOBB West Span BPM Path

1 SFOBB West Span BPM PathFeasibility and Environmental Public WorkshopPier 1 Bayside RoomJanuary 20, 201622 Welcome!33 Workshop Agenda Arrival (6:00) Presentation (6:10-6:45) General Q&A (6:45-7:00) Feedback Stations (7:00-7:40)oProject Process, Funding, and EnvironmentaloSan FranciscooMain SpanoYerba Buena Island (YBI) Station Reports (7:40-7:45) Adjourn (7:45)44 Previous Studies Feasibility Study (2002) PSR-PDS (2014) 55 Project Goals Downtown San Francisco bicycle & pedestrian link to East Bay & Treasure Island Facilitate and not hinder Caltrans maintenance access Buildable and fundable alternativeInspiringApprovableAffordable 66 San Francisco touchdown ~2500 feet or mile Main Span 10,000 feet or ~ 2 miles YBI touchdown and path ~ mileProfile to followProject DescriptionDowntownSan FranciscoMain SpanYerba Buena Island77 Project Benefits Transportation link from East Bay and Treasure Island to/from San Francisco.

2 Connects to East Span Pathway (Bay Bridge Trail) Tourism, health and recreation Closure link for the Bay Trail Class 1 - Protected from vehicular traffic Accessible (ADA) 5% or less continuous or 12H:1V w/landings88 Workshop Goals Project information and process Feedback on initial alternatives How will you use the path? Where should the path connect? Features and Amenities Suggestions or ConcernsPathway Options1010 The DistancePathway SegmentsLength(miles)(mins)(mins)BPM Span (West) Approach and Bridge Trail (Shellmound) Bay Bridge Trail & How far and how long?1111 Pathway SectionOhlone Greenway: El Cerrito 1212 Pathway WidthEast Span 15 Golden Gate:10 max Tilikum Crossing 2 x 14 Brooklyn 8 to 16 1313 Amenities Benches Look Out Lighting Safety/ Call Boxes Wayfinding Interpretive DisplaysSan Francisco Landing Options1515 SFOBB West Span BPM Path 19 Alternatives 6 Alternatives touchdown locations range from Essex Street to The Embarcadero North and South bridge connectionsDowntown SF ApproachesWhere should the path connect in San Francisco?

3 1616 Downtown SF North Approaches SFOBB West Span BPM Path 3 Alternatives considered for further Street Paint Yard Embarcadero1231717 Downtown SF South ApproachesSFOBB West Span BPM Path 3 Alternatives considered for further Paint Embarcadero1231818 Elevator Option At Pier W1 touchdown just west of Embarcadero Elevator Only Option no ramps Dual High Speed high capacity1919 Essex Street Landing2020 Paint Yard Landing2121 Embarcadero Landing2222 San Francisco Path OptionsCross-SectionsStand-aloneAttach to ExistingOn-deckYerba Buena Island Options2424 YBI OptionsSFOBB West Span BPM Path Interface with ongoing projects2525 YBI OptionsSFOBB West Span BPM Path 6 major options2626 YBI - East Bike/Ped Vista Point Connection from East Span Trail Vista Point w/bathrooms, water, bike racks, signage/infoSFOBB West Span BPM Path2727 YBI Below Hillcrest-1 Cut or retained fill with some structures Interference with Cost Guard AccessRetained Wall - Fill2828 YBI Below Hillcrest-2 Cut or retained fill with some structures Steep terrain and slopesTypical ViaductRetained Wall - FillRetained Wall - Cut2929 YBI Above Hillcrest N/S Cut or retained fill above Hillcrest (to inside)

4 North option use of west side rampsSFOBB West Span BPM Path 3030 YBI Suspended & Tunnel OptionsSFOBB West Span BPM Path Tie-in to Main Span Suspended Option Option to continue through crown of existing tunnelSuspended Path at West PortalMain Span Options3232 Main Span Alignments North or South Options; similar alignments Suspended Elevated Deck Option Structural and architectural alternatives3333 North or SouthDo you prefer the path on the north or south side of the bridge?3434 Propped Cantilever Options3535 Cantilever Beam w/Moment Connection3636 Pinned Boomerang DeckExtended Alternate3737 Outboard Deck w/Existing Suspension Cable3838 Deck Uplift w/stay cablesTamar Bridge Path Addition3939 Suspended Elevated Deck4040 Suspended Elevated Deck4141 Project Timeline Funding required to advance design and constructionPublic WorkshopsCurrent BPM ProjectFuture Phases (Est.)

5 8 10 Years)20152016 Alternatives ScreeningConceptual DesignPreliminary DesignEnvironmental StudiesFinal Design (PS&E)Funding/ProcurementConstruction 4242 Agenda Q&A Arrival (6:00) Presentation (6:10-6:45) General Q&A (6:45-7:00) Feedback Stations (7:00-7:40)oProject Process and EnvironmentaloSan FranciscooMain SpanoYerba Buena Island (YBI) Station Reports (7:40-7:45) Adjourn (7:45)4343 Breakout Stations Arrival (6:00) Presentation (6:10-6:45) General Q&A (6:45-7:00) Feedback Stations (7:00-7:40)oProject Process and EnvironmentaloSan FranciscooMain SpanoYerba Buena Island (YBI) Station Reports (7:40-7:45) Adjourn (7:45)4444 Summary of Breakouts Project Overview and Planning San Francisco touchdown Main Span Yerba Buena IslandSFMain SpanYBI4545 Next Steps Evaluate Feedback inform design process Conceptual design and initial cost estimates 2ndWorkshop Fall 2016 Complete Environmental Studies Final Design Funding ConstructionSFOBB West Span BPM PathThank you!