1. Importing Features (1d & 2d)

2. Click on Hydrography

3. Click on Load and Load Data

4. Next

5. Browse to A_NHD_Maintenance/1804/ Import_Shapefiles/Import_Line.shp Open

6. Next Add

7. Next I do not want to load all the features into a subtype

8. Next

9. Load all of the source data Next

10. Finish

11. Preview import_line data

12. This is the data you are going to import

13. Repeat steps in slides 3-12 for Import_Poly using Import_Poly.shp as the input

14. ArcMap: Zoom to Layer – Import_Line feature class

15. Flip the feature in the yellow box

16. You flip this feature outside the NHDGeoEditTools

17. Now it is pointing down stream

18. Gap line-ends Find the largest gap or overshoot This will be used to set your snapping tolerance later

19. .85 m There is a.85 meter gap

20. Gap line-edges

21. 2.46 m 1.0 m There are gaps of 1.0 and 2.46 meter gap

22. Overshoot line-edges

23. 2.4 m This overshoot is 2.4 meters

24. A.)Snap end features: (Stream end to stream end) Open Build Geometric Network Wizard in Arc Catalogue. 1. Build a geometric network from existing features. 2. Select NHDFlowline and Import_Lines. 3. Click No on 'Do you want to preserve existing enabled values?' 4. Click No on 'Do you want complex edges in your network?' Note: Choose 'no' on first round to make sure that all import_lines that CAN snap to an end do so rather than snapping to edge. (snap end to end) Choose 'yes' on second round to catch those arcs that had no end node within snap tolerance to snap to. (snap end to edge). 5. Click Yes on 'Do your features need to be snapped', check ONLY import line from 'Select features that can be moved' list. Specify a suitable tolerance for your dataset. 6. Click No on 'Do you want to assign weights to your network?' 7. Click Finish on 'Summary of your input.' 8. Delete Network B.) Repeat steps from 'A' choosing Yes on 'Do you want complex edges in your network?'

25. Click on New and Geometric Network

26. Next

27. Build a geometric network from existing features Next

28. Note: You will only see this window during the first network build if you previously had a network (Enabled Field in NHDFlowline table) Skip to next slide if you do not see this window… No Next

29. Select: NHDFlowline & Import_Line Use default name Next

30. Do you want complex edges in your network? No Next

31. Do your features need to be snapped - ● Yes Snap Tolerance – Based on largest gap or overshoot from data anaysis Select features that can be moved – Select Import_Line Next

32. Do you want to assign weights to your network? No Next

33. Finish

34. Hydrography_Net is created

35. Right click on Hydrography_Net - Delete

36. Right click in white space – New – Geometric Network…

37. Next

39. Select NHDFlowline and import_line Next

40. No Next

41. Select both if you have gaps within your local data Next

42. Select “Yes” features need to be snapped Set the snap tolerance to 3 because the largest gap was less than 3 Select import_line Next

43. No Next

44. Finish

45. Delete the Geometric Network

46. Open ArcMap and Select Metadata Session to start the NHDGeoEditTools Click on Editor and open Editing Options Set Snapping tolerance to 1 map units

47. Select all features in import_line

48. Click Edit and Copy

49. Select ADD NHDFLOWLINE and Select Subtype Select StreamRiver and StreamRiver Hydrographic Category = Intermittent

50. Select Import NHDFlowline Geometry Select paste

51. Apply NHDFlowline Rules and Save NHDFlowline Add

52. Import Polygons Select all features in import_poly

53. Click Edit and Copy

54. Select ADD NHDWATERBODY and Select Subtype Select LakePond and LakePond Hydrographic Category = Perennial

55. Select Import NHDWaterbody Geometry and Paste

56. Apply NHDWaterbody Rules and Save NHDWaterbody Add

57. The Apply Rules made all NHDFlowlines in LakePonds Artificial Paths

59. Start All Programs NHDUtilities NetworkBuilder Browse to 1804_alb.mdb- Hydrography, NHDflowline Build Network Build a Geometric Network

60. Utility Network Analyst Toolbar: Add Edge Flag tool – Add Flag in location shown below Trace Task – Set to Trace Upstream Solve

61. Network has traced through pre-existing features and new import features indicating that all new imports snapped correctly

62. Turn Labels on: By displaying ComID’s you can ensure that all features were split correctly

63. Assign Reach Codes to new features Click on Utilities and Assign Reach Code Select NHDFlowline and NHDWaterbody Click OK

64. All Features now have a ReachCode