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Nipigon storm scoping oct 9 presentation to PAC

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Presentation by Dr. Rob Stewart of Lakehead University on the stormwater management scoping study being done in the Town of Nipigon

Presentation by Dr. Rob Stewart of Lakehead University on the stormwater management scoping study being done in the Town of Nipigon

Published in: Education, Technology

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  • 1. Nipigon Stormwater Scoping Report Sample Site Conditions, Watershed Data, Roles and Responsibilities Dr. Robert Stewart Faculty of Science and Environmental Studies
  • 2. •  The purpose of a Stormwater Master Plan is to provide an integrated process to evaluate existing infrastructure and policies, identify drainage system deficiencies, and develop an implementation plan, including capital planning estimates and possible funding mechanisms for a long-term sustainable program, including policy to manage stormwater, within municipal boundaries Context
  • 3. •  A characterization of the existing environmental conditions for all watersheds within municipality. •  An assessment of the effectiveness of existing stormwater management infrastructure at reducing the negative impacts of stormwater on the environment, including the consideration of the potential impacts of climate change on the effectiveness of existing infrastructure. •  The identification of new stormwater measures, retrofit opportunities or improvements to existing infrastructure that could improve the level of water quality and flow capacity. •  A determination of the framework for an Asset Management model that incorporates costs of capital, operations and maintenance, and replacement with a life-cycle approach. •  An identification of recommended strategies for stormwater management in the municipality; and •  A Recommended implementation plan A Master Plan often includes:
  • 4. •  The purpose of this scoping report is to determine the key priorities, issues and resources available for coordinated stormwater management efforts in the Township of Nipigon. •  It is the first phase of a more comprehensive stormwater management assessment required in the development of a Stormwater Management Master Plan (SWMMP), and Watershed Restoration Plan (WRP) for Clearwater Creek. Stormwater Scoping Report
  • 5. Year 1 (2013-2014) Master Plan Scoping Study •  Develop suitable reference sites within the Town of Nipigon watershed. These reference sites can be used for comparison to assess the level of impact tributaries exposed to urban municipal discharge •  Examine tributaries within the city limits, identify the extent of ecosystem impairments, characterize contaminant sources, and provide inventory of physical characteristics to identify areas of concern (i.e. stormwater outfalls, severe erosion, impacted buffer, utility crossings, stream crossings, channel modification etc.) •  Offer mitigation options and pollution prevention strategies to improve conditions within impaired tributaries
  • 6. D D D D   (D D IMG_0033.JPG Page 13 of 205 Site Notes:   Stage 2 enhancement measure for Clearwater Creek. Well established vegetation, however site has not been maintained. Site: 1 St. Edwards School Retention Catchment Stormwater 2013:09:04 11:36:54
  • 7. D D D (D D D IMG_0035.JPG Page 14 of 205 Site Notes:   Retention tank at Site 1 Site: 1 St. Edwards School Retention Catchment Stormwater 2013:09:04 11:36:59
  • 8. D D D (D D D IMG_0037.JPG Page 15 of 205 Site Notes:   Spillway from retention pond to Clearwater Creek - exposed cobble from path of drainage. (could be re-vegetated to improve retention and reduce erosion. Site: 1 2013:09:04 11:37:09
  • 9. D D (D D D D 210 IMG_0041.JPG Page 16 of 205 Site Notes:   Clearwater Creek looking upriver. High turbitity from erosion. Sediment contribution from upstream east side of creek major outfall from First Street (Site 4); Harkness Street runoff into St Edwards lot and down by platform. Site: 1 2013:09:04 11:38:46
  • 10. D D D D D D D D D (D D D D DD 200 IMG_0047.JPG Page 18 of 205 Site Notes:   From CN line North of tracks down to ravine. Remediated site using boulders. View is a well vegetated and established section. Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 11:54:29
  • 11. D D D D D D D D D (D D D D DD 200 IMG_0049.JPG Page 19 of 205 Site Notes:   Top of Ravine looking back toward Nipigon Cafe. Vegetation established. No overland drainage problems reported. Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 11:54:34
  • 12. D D D D D D D D D (D 200 IMG_0067.JPG Page 20 of 205 Site Notes:   Drainage pipe from Nipigon Cafe. Newly replaced with rip rap rock to prevent further erosion. However no soil or vegetation cover. Also need to ensure boulders are sealed with fine material for vegetation to establish. Temporary fix. Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 12:00:55
  • 13. D D     D D D D DD D (D IMG_0071.JPG Page 21 of 205 Site Notes:   Left of half pipe shows where rip rap fills in previous erosion. Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 12:04:31
  • 14. D D D D D D D D D (D 200 IMG_0073.JPG Page 22 of 205 Site Notes: Fish passage and erosion control / enhancement works in creek below half pipe. No seal of fine materials established for vegetation and erosion reduction. Need to monitor vegetation growth. Area also has noticable floodplain. Need to assess hazard potential and mitigation of fish passage measures. Need to ensure pool/riffle sequence. Potentially clear culvert for fish passage Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 12:07:24
  • 15. D D D D D D D DD (D D D D 200 200 IMG_2296.JPG Page 23 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:44:42
  • 16. D (D     D D D D D D D D DD D D D D 200 IMG_0056.JPG Page 24 of 205 Site Notes: Site: 3 Drainage Outfall from Nipigon Cafe 2013:09:04 11:56:09
  • 17. D D D D D D D D (D D D DD D D D 200 IMG_2286.JPG Page 25 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:32:18
  • 18. D D D D D D D D D D (D D D D D D 200 IMG_2289.JPG Page 26 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:36:08
  • 19. D D D D D D D D D D (D D D D D D 200 IMG_2290.JPG Page 27 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:36:31
  • 20. D D D D D D D D D D D (D D D D D 200 IMG_2291.JPG Page 28 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:37:07
  • 21. D D D D D D D D (D D D DD D D D 200 IMG_2287.JPG Page 29 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:32:31
  • 22. D D D D D D D   Site: 3 Initial Trip by Rob Stewart - 08/27/2013 D (D D D D D D D 200 IMG_2288.JPG Page 30 of 205 Site Notes: 2013:08:27 14:35:09
  • 23. D D D D D D D DD D   Site: 3 Initial Trip by Rob Stewart - 08/27/2013 (D D D 200 200 The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. IMG_2300.JPG Page 31 of 205 Site Notes: 2013:08:27 14:46:45
  • 24. D D D D D D D D D (D 200 IMG_2303.JPG Page 32 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:50:37
  • 25. D D D D D D D D D (D 200 IMG_2304.JPG Page 33 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:50:39
  • 26. D D     D D D D DD D (D IMG_2305.JPG Page 34 of 205 Site Notes: Site: 3 Initial Trip by Rob Stewart - 08/27/2013 2013:08:27 14:51:41
  • 27. (D 210 IMG_0075.JPG Page 36 of 205 Site Notes: Site: 4 2013:09:04 12:19:14
  • 28. (D 210 220 IMG_0082.JPG Page 37 of 205 Site Notes:   Grassy swale by hospital. Water obscured by vegetation. Site: 5 2013:09:04 12:26:31
  • 29. (D D D IMG_0094.JPG Page 38 of 205 Site Notes: Site: 6 2013:09:04 12:32:07
  • 30. The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. D (D D The image cannot be displayed. Your computer may not have enough memory to open the image, or the image may have been corrupted. Restart your computer, and then open the file again. If the red x still appears, you may have to delete the image and then insert it again. IMG_2309.JPG Page 39 of 205 Site Notes: Site: 6 2013:09:04 12:32:22
  • 31. (D IMG_2310.JPG Page 40 of 205 Site Notes: Site: 6 2013:09:04 12:56:44
  • 32. D (D IMG_0101.JPG Page 42 of 205 Site Notes: Site: 7 2013:09:04 12:44:50
  • 33. (D D IMG_0105.JPG Page 43 of 205 Site Notes: Site: 7 2013:09:04 12:45:41
  • 34. D (D IMG_0107.JPG Page 44 of 205 Site Notes: Site: 7 2013:09:04 12:45:53
  • 35. D D D (D D 260 IMG_0115.JPG Page 45 of 205 Site Notes: Site: 9 2013:09:04 12:52:54
  • 36. D D (D D D IMG_0121.JPG Page 46 of 205 Site Notes: Site: 9 2013:09:04 12:53:52
  • 37. D D D (D D IMG_0123.JPG Page 47 of 205 Site Notes: Site: 9 2013:09:04 12:54:19
  • 38. D D D (D D IMG_0125.JPG Page 48 of 205 Site Notes: Site: 9 2013:09:04 12:54:25
  • 39. D (D     D D D D 190 200 210 220 IMG_0167 - Copy.JPG Page 50 of 205 Site Notes: Site: 11 2013:09:04 13:23:11
  • 40. D D D D D (D 220 IMG_0169.JPG Page 51 of 205 Site Notes: Site: 11 2013:09:04 13:23:18
  • 41. D (D     D D D D 190 200 210 220 IMG_0171.JPG Page 52 of 205 Site Notes: Site: 11 2013:09:04 13:23:33
  • 42. D D (D D D D IMG_0180.JPG Page 53 of 205 Site Notes: Site: 11 2013:09:04 13:24:46
  • 43. D D (D D D D IMG_0182.JPG Page 54 of 205 Site Notes: Site: 11 2013:09:04 13:25:03
  • 44. D D D D D (D 220 IMG_0194.JPG Page 55 of 205 Site Notes: Site: 11 2013:09:04 13:27:11
  • 45. D D   D (D IMG_0204.JPG Page 57 of 205 Site Notes: Site: 12 2013:09:04 13:34:20
  • 46. D(D D D IMG_0206.JPG Page 58 of 205 Site Notes: Site: 12 2013:09:04 13:34:42
  • 47. (D D     D D IMG_2321.JPG Page 59 of 205 Site Notes: Site: 12 2013:09:04 13:35:26
  • 48. Infosuperior.com  

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