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Rain Check: Preparing Your Stormwater System for Historic Flooding

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Is your stormwater system prepared to handle a year’s worth of rainfall in less than a week? That was the test for the City of Golden in 2013. Thanks to a proactive stormwater maintenance routine and reliable GIS data, the City incurred minimal damage. And since they were able to provide detailed reports on recovery efforts and costs, they received FEMA reimbursement within months.​

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Rain Check: Preparing Your Stormwater System for Historic Flooding

  1. 1. PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODING DAN HARTMAN Public Works Director, City of Golden, CO Rain Check: KIM SOULLIERE GIS Coordinator, City of Golden, CO
  2. 2. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Be Prepared The time to clean your stormwater system… …is not when it starts raining.
  3. 3. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG September 2013 Colorado’s Front Range received a year’s worth of precipitation in one week.
  4. 4. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG City of Golden, Colorado • 10 miles west of Denver • 9.7 square miles in size • Approx. 18,000 people • 1% growth ordinance • School of Mines + Coors Brewery Public Works and GIS Tucker Gulch Clear Creek Kayak Park Coors Brewery
  5. 5. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  6. 6. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG 2013 Flood 1965 Flood 1896 Flood
  7. 7. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Golden’s Flooding History Coors home and Brewery in 1896.
  8. 8. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  9. 9. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG September 2013 Flooding
  10. 10. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  11. 11. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  12. 12. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG How to Be Ready: Inspect and clean!
  13. 13. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  14. 14. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG The channel under the bridge was inspected August 22
  15. 15. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG 2013 Floods Tucker Gulch at 7th Place Aug. 22, 2013 Sept. 17, 2013
  16. 16. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  17. 17. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  18. 18. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG During the Flood Inspection and maintenance
  19. 19. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG The Road to Managing the Stormwater System with GIS and Cartegraph OMS In 1988 Golden used hand drawn maps that had been compiled over 40 years: • No stormwater assets on the maps • The City was in the mode of respond/react • No ongoing reinvestment program
  20. 20. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Old Fashioned Mapping Set targets and get in the plane. Here’s what we learned in 1989: Old Maps Actual Now Pipe/channel 0 miles 26 miles 101 miles Inlets 78 378 2,871 Manholes 0 0 1,009
  21. 21. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Created a Drainage Utility • Dedicated source of funding which has allowed us to map, maintain and replace • Use impervious area to set fees
  22. 22. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG What is Mapped Today… Maintained by Golden Maintained by Other Pipes 27 miles 41 miles Channels 12 miles 21 miles Manholes 498 511 Inlets 971 1,900 Outfalls 427 812 Storm Basins 64 220 Storm Chases 102 112 Sediment Traps 27 32
  23. 23. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG In GIS and OMS Synchronized • Layers are published from an ArcSDE version using ArcGIS Server • Services are synchronized in OMS • Live updates of mapping and data
  24. 24. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Collecting the Spatial Data Today Using a high accuracy Trimble GeoXH. Recently added the Trimble R1 paired to an iPad using the GNSS Status App. Trimble GeoXH Trimble R1 with iPad GNSS Status App on iPad
  25. 25. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG How about the attribute data? In the past … • Paper forms • 1,000s of pages to sort and take in the field • Data entry staff • Errors interpreting handwriting
  26. 26. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Today: • iPad data collection, inspections, and tracking maintenance from the field • Live updates to GIS and Cartegraph OMS databases
  27. 27. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Productivity Increases Storm inlet inspections tracked in Cartegraph per year • 2009—596 • 2010—604 • 2014—1,203 • 2015—3,807* • 2016—7,711** * First full year of inspections with iPads and real-time integration of GIS and Cartegraph OMS in the field ** Many inspections are post storm drive-by inspections now being documented in OMS
  28. 28. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Live Updates for Real-Time Progress Monitoring
  29. 29. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Tracking Maintenance with Filters • Storm inlets not yet inspected in 2017 (red dots) • In the Tucker Gulch drainage (blue dots) • All inlets
  30. 30. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG
  31. 31. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG The Same Filters on the iPad App • The same filtered asset layers are on the iPad • When inspections are completed the red points change color • Inspection tasks are created on-the-fly • Photos can be added to inspections
  32. 32. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Attach Photos to Tasks to Tell the Story 1 2 3
  33. 33. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG After Storm Events: Component/Container Model to group assets that need inspection after storms. Generate tasks more efficiently and track them in the dashboard. Post Storm Inspections
  34. 34. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Work Order Dashboards Allowed for much faster reimbursement from FEMA
  35. 35. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG And Reports This is a detailed report for a task
  36. 36. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Or Use a Custom Field on Tasks… FEMA <date> can be a dropdown choice Or a checkbox
  37. 37. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG To Create a Summary Report • Special Event Name summary example • Report filters ALL tasks in any division that have “Special Event Name” filled out
  38. 38. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Publish GIS Services with Pop-Ups Access to data in GIS that is not in OMS, like parcels
  39. 39. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Crowdsourced Notifications with YourGov Mobile App Website Geolocated on Our Map
  40. 40. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Moving Forward • Golden Public Works owns a DJI Phantom 4, obtained a Certificate of Authorization (COA), and a staff member went through training. Future use for storm damage assessment, storm event monitoring, channel maintenance? • More real-time data feeds? • Private storm asset maintenance takeover? • YourGov responses—ideas for increasing participation from the public?
  41. 41. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Photo from the UAV
  42. 42. RAIN CHECK: PREPARING YOUR STORMWATER SYSTEM FOR HISTORIC FLOODI NG Screenshot Placeholder Delete this shape and replace with your screenshot, photo, or graphic. Live Demo
  43. 43. THANK YOU! ANY QUESTIONS? KIM SOULLIERE GIS Coordinator, City of Golden, CO ksoulliere@cityofgolden.net DAN HARTMAN Public Works Director, City of Golden, CO dhartman@cityofgolden.net ROB GIBSON Stormwater Supervisor, City of Golden, CO rgibson@cityofgolden.net SHAUNA PAULSON Cartegraph Coordinator, City of Golden, CO spaulson@cityofgolden.net
  44. 44. Cartegraph empowers cities and counties to become high-performance governments. UNCOVER MORE ABOUT HIGH PERFORMANCE AT CARTEGRAPH.COM

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