Treasure Island and Yerba Buena Island Treasure Island Citizens Advisory Board and Treasure Island Development Authority | October, 2014
Infrastructure Review 1. Property Mapping a. Navy Conveyance b. State Lands 2. Site Planning – Street Cross Sections 3. Utility Systems
Property Mapping – First Navy Conveyance
Property Mapping – State Lands Processing
Property Mapping– Status Completed to Date 1. Complete Design Level Aerial Topographic Surveys for all of TI and YBI 2. Completed Existing Utility Surveys for Phase 1 Area 3. Navy Conveyance a. Confirmed the adjusted limits of the first conveyance property (FOST property) 4. State Lands Process a. Revised the Phase 1 limits of proposed Public Trust Lands and Trust Exempt areas based on Navy revised conveyance limits. State Lands has agreed with revisions. b. Revised Exchange Agreement on State Lands Commission consent calendar on October 15. Next Steps 1. Navy Conveyance a. Preparing legal descriptions for conveyance area b. Navy to complete Phase 1 conveyance 2. State Lands Process a. Preparing legal descriptions for Phase 1 transfer areas b. Process Phase 1 lands with State Trust
Site Planning - Street Cross Sections Clear Width – 20 feet Clear Width – 26 feet Original Cross Sections – 2010 Infrastructure Plan
Site Planning - Street Cross Sections Clear Width – 20 feet Clear Width – 26 feet Adjusted Cross Sections Agreement between SFFD, Planning, SFMTA and SFDPW to Widen Some Clear Widths (adjusted lane widths, adjusted parking bay widths, added bike lanes)
Site Planning - Street Cross Sections Completed to Date 1. Meetings with SFFD, Planning, SFMTA, and SFDPW to review Street Cross Sections and Site Plan 2. SFFD, Planning, SFMAT, and SFDPW in agreement with revised street cross sections for fire access. Next Steps 1. Develop Street Scape Master Plan 2. Develop Construction Drawings for Sub-Phase 1
Potable Water System • Potable water from San Francisco • SFPUC does not require emergency supply from Oakland (EBMUD service) • 4-Million Gallons of New Storage on YBI • Existing system replaced in phases
Potable Water System – Water Tanks
Potable Water System - Status Completed to Date 1. Bi-weekly Meetings with SFPUC – CDD a. Coordination of water tank designs (basis of design, life cycle analysis) b. Finalized system design parameters (demand requirements, pressures/flows, min/max velocities, pipe coefficients, etc.) c. Review of existing potable water system d. Developed first draft of Treasure Island Sub-Division Regulations and Technical Specifications for water system Next Steps 1. Develop Potable Water Master Plans a. Develop water models for existing and proposed systems b. Layout and pipe sizing c. Phasing of improvements 2. Develop Construction Plans for Sub-Phase 1
Wastewater System • Existing system replaced in phases • New/Upgraded wastewater treatment plant designed and constructed by the SFPUC
Wastewater System - Status Completed to Date 1. Bi-weekly Meetings with SFPUC – WWE a. Finalized system design parameters (volume estimates, min/max pipe slopes, etc.) b. Developed first draft of Treasure Island Sub-Division Regulations and Technical Specifications for sewer system Next Steps 1. Develop Wastewater Master Plans a. Develop proposed system models b. Size of piping system c. Phasing of improvements 2. Develop Construction Plans for Sub-Phase 1
Recycled Water System 12” DRY STAND PIPE – CONNECTED TO FIRE BOAT MANIFOLD • New recycled water plant designed/constructed by the SFPUC • New recycled water system installed to SFPUC standards for all non-potable uses on TI (not on YBI) • Recycled water will reduce potable water demand by 26% • Secondary source of water for fire protection on TI • Added dedicated main for Bay Water supply as requested by SFFD
Recycled Water System - Status Completed to Date 1. Bi-weekly Meetings with SFPUC – CDD a. Finalized system design parameters (demand requirements, pressures/flows, min/max velocities, pipe coefficients, etc.) b. Developed first draft of Treasure Island Sub-Division Regulations and Technical Specifications for Recycled Water System 2. Coordination With SFFD a. Confirmed use of recycled water for fire protection b. Added dedicated line for bay water supply Next Steps 1. Develop Recycled Water Master Plans a. Develop models for proposed systems b. Layout and pipe sizing c. Phasing of improvements 2. Develop Construction Plans for Sub-Phase 1
Stormwater System • Existing system completely replaced in phases • Initial design to accommodate 100-year storm, 100-year tide, and 16-inches of Sea Level Rise • Adaptable to provide additional protection from Sea Level Rise • Stormwater treatment prior to outfall to Bay
Stormwater System – Treatment
Stormwater System - Status Completed to Date 1. Bi-weekly Meetings with SFPUC – WWE a. Finalized system design parameters (volume estimates, min/max pipe slopes, etc.) b. Developed first draft of Treasure Island Sub-Division Regulations and Technical Specifications for storwater system 2. Developing permit applications for outfalls (Corps of Engineers, Regional Water Quality Control Board, BCDC) Next Steps 1. Develop Stormwater Master Plans a. Develop proposed system models b. Size of piping system c. Identify and size stormwater treatment locations d. Phasing of improvements 2. Process Outfall Permits with Agencies 3. Develop Stormwater Control Plan for Treatment of Stormwater Prior to Outfall to the Bay 4. Develop Construction Plans for Sub-Phase 1
Dry Utility Systems • Existing systems completely replaced in phases • SFPUC reviewing feasibility of being power provider
Dry Utility Systems - Status Completed to Date 1. Meetings with SFPUC – Power Enterprise a. Developed first draft of standards for electrical system designs Next Steps 1. Finalizing Agreements with SFPUC for electrical service 2. Develop Dry Utility Master Plans 3. Develop construction drawings for Sub-Phase 1
Automated Waste Collection System Current Efforts 1. Meetings with Recology and Transvac a. Developing layout for AWCS piping system b. Identify location for collection point building c. Confirm phasing scenarios Next Steps 1. Finalize agreements with Recology 2. Finalize AWCS Master Plan 3. Coordinate with Recology and Transvac for construction drawings for Sub-Phase 1
Thank You
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