tujunga spreading grounds enhancement project · 2019. 9. 27. · project overview basins...
TRANSCRIPT
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TUJUNGA SPREADING
GROUNDS ENHANCEMENT
PROJECT
Southern California Water Coalition’s
Stormwater Workshop
September 27, 2019
Multi-Agency Collaboration to Achieve Co-Benefits and Cost Sharing
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AGENDA
• Project Objective
• Partnerships
• Project Location
• Project Overview
• Multi-Benefits
• Cost Sharing
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PROJECT OBJECTIVE
Including capture 150,000 acre-ft/year of stormwaterIncluding capture 150,000
AFY of stormwater
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MULTI-AGENCY PARTNERSHIPS
LADWP
Water Resources Division
Watershed Mangement
LA County Flood Control DistrictDesign, Construction
Management & Inspection
Basins
W.A. Rasic Inc.
Intakes
Los Angeles Engineering Inc.
Open Space Enhancement
TBD
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PROJECT LOCATION
Tujunga SG)
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PROJECT OVERVIEW
Basins (Completed)
Consolidate 20 existing basins into 9 larger and deeper basins
Intakes (Nov 2019 completion)
2 new intakes and rubber dams
Open Space (Dec 2020 completion)
Improve perimeter fencing, recreational space and landscaping
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PHASE 1- BASIN ENHANCEMENTS
7
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CONVEYOR BELT SYSTEM
Disposal site
Tujunga Spreading Grounds
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CONVEYOR BELT SYSTEM
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PHASE 2 – INTAKE IMPROVEMENTS
New Intake No. 2
New Intake No. 1
Existing Intake
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PHASE 2 – INTAKE IMPROVEMENTS
Tujunga SG)
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PHASE 2 – INTAKE IMPROVEMENTS
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PHASE 2 – INTAKE IMPROVEMENTS
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PHASE 3 - OPEN SPACE ENHANCEMENTS
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MULTI-BENEFITS
Improve
Downstream
Water
Quality
Open Space
Recreation
Improve
Communities
Increase
Stormwater
Capture and Water
Supply Reliability
Promote Economic
GrowthFlood control by
attenuating peak
flow
Supply water to 48,000 homes per yr
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COST SHARING
LADWP $52 M
Total Budget ~ $52 Million
~$130/AF of water
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COST SHARING
District$6.3 M
LADWP $47.5 M
Total Budget ~ $52 Million
~$114/AF of water
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COST SHARINGProp 84 Grant$3.2 M
Prop 1 Grant $7M
District$6.3 M
LADWP $35.3 M
Total Budget ~ $52 Million
~$85/AF of water
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Thank you
Art Castro, PEManager, Watershed Management
Los Angeles Department of Water & Power