Treasure Island and Yerba Buena Island Treasure Island Citizens - - PowerPoint PPT Presentation

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

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

Property Mapping– Status

Site Planning - Street Cross Sections

Clear Width – 20 feet Clear Width – 26 feet

Original Cross Sections – 2010 Infrastructure Plan

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

Clear Width – 20 feet Clear Width – 26 feet

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

Site Planning - Street Cross Sections

• 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

Potable Water System – Water Tanks

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

Potable Water System - Status

• Existing system replaced in phases
• New/Upgraded wastewater treatment plant

designed and constructed by the SFPUC

Wastewater System

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

• 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

12” DRY STAND PIPE – CONNECTED TO FIRE BOAT MANIFOLD

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

• 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

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

• Existing systems completely replaced in phases
• SFPUC reviewing feasibility of being power provider

Dry Utility Systems

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

Dry Utility Systems - Status

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