Download - What is a Surface Water Asset?
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What is a Surface Water Asset?
Surface water assets are structures that help direct rainwater into a sub-surface, piped drainage system.
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What is a Surface Water Asset?
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Surface Water Asset Examples Catch basins
Inlets
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Surface Water Asset Examples Ditches
Culverts
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Surface Water Asset Examples Sandboxes
Junction Boxes
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Project Drivers
National Pollutant Discharge Elimination System (NPDES) Stormwater Permit (2007 & 2013)
• “No later than 24 months after the effective date of this permit each Permitee shall begin implementing a program to inspect catch basins owned or operated by the Permitee.”
• Penalties for non-compliance can include: $32,000 per day per violation
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Project Drivers
If an asset isn’t captured in GIS, it doesn’t exist in SPU’s Work Management System (MAXIMO).
This means: Some assets are not being maintained Claims, public safety risks, etc.. Help to identify and report possible issues
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Structures needing maintenance
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Identify Potential Flooding Issues
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Identify Potential Problem Areas
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•Multi-year initiative to map SPU’s surface water assets •GPS field data collection and updating the City’s GIS •120,000 assets to verify •Asset rehabilitation and replacement tracking
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Workflow – From Fieldwork to GIS
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Equipment & Software
Trimble GeoExplorer 6000 GeoXH Trimble Zephyr GPS antenna ArcPad 10.0.2 Trimble GPS Correct 3.40 4G Verizon mi-fi card Washington State Reference Network (WSRN) 10 cm accuracy (no-post processing)
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Real-Time Network
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WSRN Network Grid
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Data Check-Out Check-out Feature Class through ArcPad Data Manager Extension in ArcMap Transfer onto GPS
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Fieldwork and Inventory
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Data Check-In Transfer from GPS to PC Check-in Feature Class through ArcPad Data Manager Digitize points QC and post to GIS
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Before SWAMP…
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After SWAMP…
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Project started on 07/2010 • 250 miles walked • 25,000 assets investigated • 25% of the City completed
Project Status
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SWAMP Project Manager, Scott Reese Seattle Public Utilities [email protected] 206-228-7317
Adi Grcic Seattle Public Utilities [email protected] (206) 733-9892
Contact Information:
Holli Brandt Seattle Public Utilities [email protected] (206) 684-8533
Questions?