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Jessy Willadsen - Mason City GIS Analyst

Using GIS for Utility Mapping and Asset Management Sanitary Sewer, Storm Sewer, and Water Distribution City of Mason City. Jessy Willadsen - Mason City GIS Analyst. First Question: Why include utilities into your GIS?. View information graphically. View different layers together.

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Jessy Willadsen - Mason City GIS Analyst

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  1. Using GIS for Utility Mapping and Asset ManagementSanitary Sewer, Storm Sewer, and Water DistributionCity of Mason City Jessy Willadsen - Mason City GIS Analyst

  2. First Question: Why include utilities into your GIS? • View information graphically. • View different layers together. • Store attribute information about features. • Link features to scanned records. • You only have to store the location of features once. • 80-90% of data maintained by government has a spatial component.

  3. Looking at the intersection without utilities in your GIS

  4. Final Product

  5. Paper Records, Scanning, andDocument linking

  6. Where do you start? • Went to each department to evaluate what their GIS needs were. • Features requested • Attributes needed • Potential use of data (use this for prioritization) • Planned source to collect the features and what method will be used to create the data.

  7. What GIS layers should be created. What data will be needed to create these GIS layers. Where is this data located. Prioritize what GIS layers will be created first. Needs Assessment

  8. Page out of Needs Assessment

  9. Creating data • GPS Data collection: Collect features by GPS and import them into the GIS system. • Aerial photography interpretation: Example, you can see manholes in the aerial photography. • Measurements from known locations: Example: Measure water valve from the center of the road or from property corners.

  10. Purchase of Survey Grade GPS • In 2008, the City purchased survey grade GPS equipment. • The Leica GPS 1200 unit utilizes the Iowa Real Time Network. • Using a cellular modem, the GPS controller receives correction data from the internet in real time.

  11. GPS

  12. GPS Components

  13. Handheld GPS

  14. GPS Points

  15. Utility Lines drawn in using GPS data to aid in location

  16. Aerial Photography interpretation

  17. Aerial Photography Interpretation Continued

  18. Measurements

  19. Engineering and Operations & Maintenance Priorities • Sanitary Sewer System • Storm Sewer System • Water Distribution System • Road infrastructure

  20. Primary Features: Mains Manholes Other features Mapped: Caps and plugs Cleanout Private mains and manholes Service lines including wyes and stubs Repairs Sanitary Sewer

  21. Sanitary Sewer Evolution • CAD Files converted to GIS • Improvement of location in GIS of Mains and Manholes • Link to external database • Link to field books for each service • Link to CCTV sewer videos. • Link to sewer profiles. • Repair Mapping

  22. Sanitary Sewer Future Development / Ideas • Maintain existing functionality • Complete GPS collection of all manholes • Map service connections • Scan plans and link to GIS.

  23. Sanitary Sewer Common attributes • Pipe Material • Pipe Size • More?

  24. Auto Cad File

  25. Manhole Inspections Database

  26. Sewer CCTV

  27. As-Built Plans

  28. Sanitary Sewer Property Records

  29. Page from Sanitary Sewer Field Book

  30. Sanitary Sewer Profile Sheet

  31. Sanitary Sewer Reference Book

  32. Sanitary Sewer GIS Data

  33. Primary Features Valves Hydrants Mains Junctions Other features Mapped Service lines Cutoffs and Corporation Turning zones and Flushing routes Main breaks Wells, Water Towers, Booster Stations, and reservoirs Reducers and Hydra-stoppers Water Distribution

  34. Water Distribution Evolution • No Usable CAD files to import • GPS collected valves and hydrants • Draw mains using water book as reference. • Used database as reference also which contained measurements from the center of the road and sidewalk.

  35. Water Service Property Card

  36. Water Utility Database

  37. Water Service Database Record

  38. Water Distribution Features • Link to external database for valves and hydrants • Link to external database for service points

  39. Water Distribution Typical Attributes • Pipe Material • Pipe Diameter • Valve Type (Main or Hydrant) • Cutoff Address

  40. Water Distribution Future Development/Ideas • Maintain existing advancements. • Migrate the microsoft access database to an enterprise database such as postgre. • Scan service records for each water service and link to GIS. • Continue GPS collecting Valves, Hydrants, and Water Cutoffs. • Link service data to cutoffs.

  41. Water Book

  42. Water Book Page

  43. Water Book Closer Look

  44. Water Distribution GIS

  45. Water Distribution GIS Continued

  46. Storm Sewer • Primary Features • Main • Intake • Manhole • Discharge

  47. Storm Sewer • Other features Mapped • Abandoned pipe • Districts • Lift Station • Private mains, intakes • Services

  48. Storm Sewer Auto Cad File

  49. Storm Sewer Features in the Field

  50. Storm Sewer Features in the Field

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