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Spring Lake - A Case Study for Green Infrastructure & LID (part 2)

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An in-depth case study for low impact development

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Spring Lake - A Case Study for Green Infrastructure & LID (part 2)

  1. 1. Speakers discuss the key design components of the project – PART 1
  2. 2. Ryan Bentley, PLA Big Muddy Workshop Landscape Architect Analysis, Design & Details Project Role: Project Landscape Architect
  3. 3. Analysis
  4. 4. 83 potential BMP technologies were identified, ranging from rain gardens, bioswales and infiltration trenches to wetlands, detention basins, and ponds. Most of the evaluated BMPs created treatment trains. Analysis
  5. 5. Analysis
  6. 6. Design
  7. 7. Infiltration Basin Design
  8. 8. Infiltration Basin Design
  9. 9. Submerged Gravel Wetland Design
  10. 10. Submerged Gravel Wetland Design
  11. 11. Design Parking Island Bioretention
  12. 12. Design Parking Island Bioretention
  13. 13. Parking Island Bioretention Design
  14. 14. Lake Design
  15. 15. Lake Design
  16. 16. Lake Design
  17. 17. Lake Design
  18. 18. Lake Design
  19. 19. Noteworthy Details  Lake Habitat  Fishing points  Fishing lawn  Tree piles  Pea gravel substrate  Aerators  Submerged Gravel Wetland  Engineering media  Underdrain system with control valve  Log outlet structure  Erosion Control  Grade control fascines  Bypass pipes  Sandbag berms  Pipe Outlets  Plunge pools  Tied concrete block mat Design
  20. 20. Planting Highlights  Canopy Trees – Hickory, Oak, Linden, Honeylocust, Coffeetree, Cottonwood  Understory Trees – Pawpaw, Redbud, Dogwood, Hophornbeam, Willow  Shrubs – Indigobush, Chokeberry, Buttonbush, Dogwood, Filbert, Sweetspire, Sumac, Gooseberry, Bladdernut, Snowberry, Currant, Viburnum  Perennials – Amsonia, Swamp Milkweed, False Indigo, Poppy Mallow, Sedge, Joe-Pye Weed, Blanket Flower, Sneezeweed, Iris, Moneywort, Bee Balm, Primrose, Switchgrass, Spiderwort, Golden Alexanders  Wetland Plants – Water Plantain, Sedge, Rush, Horsetail, Lobelia, Arrowhead, Bulrush Design
  21. 21. Design Challenges Sorin Juster, PE Kirkham Michael Vice President
  22. 22. Devices were strategically placed SAFL Baffle locations
  23. 23. Device Description SAFL Baffle with Snout
  24. 24. Device without maintenance Post Construction Inspections – it works! SAFL Baffle and snout
  25. 25. Device with maintenance Post Construction Inspections – it works! SAFL Baffle and snout
  26. 26. First time for CSO projects SAFL Baffle Design Criteria
  27. 27. Classified as low head F Street Dam issues – Initial Concept
  28. 28. List components…. Chosen Concept for downstream face
  29. 29. Seepage Blanket and Sheet Pile Wall
  30. 30. Challenge with Jack and Boring During Construction
  31. 31. 45 feet Deep Special Structure
  32. 32. Andy Szatko Andy.Szatko@cityofomaha.org City of Omaha Environmental Quality Control Tech I Sediment & Erosion Control Challenges Building green infrastructure requires construction…
  33. 33. Looking north at what will be the lake 4/22/14 How do you go from this…
  34. 34. Looking north from F St – going into Late 2015 …through this…
  35. 35. Spring Lake Park – Spring 2015 …with mother nature acting like this…
  36. 36. Spring Lake Park – Summer 2016 …all while people are anxious for this?
  37. 37.  Work in areas water is directed to(streets)  Sewer separation first  runoff into park  549 individual BMPs on SWPPP  Construction approx. 29 months Long & linear project w/unique setting
  38. 38. Tree removal…  Bird nesting - surveys  Ground disturbance during
  39. 39. Steaming tree chip pile, called in by nearby resident thinking it was on fire
  40. 40.  Keeping sediment, concrete, & other things out…  Good communication with the Corps Wetland issues…
  41. 41.  Timing for seeding  Schedules of crews & mother nature… Stabilization…
  42. 42. Maintenance Considerations It’s built…now what?
  43. 43. …in the design phase Get the right folks involved…  Parks Department  Sewer Maintenance  Stormwater Program  Levee
  44. 44. …in the design phase Discussion…  Who is doing what  How often?  How to make maintenance efficient  What equipment will be used  Accessibility  Limitations
  45. 45. …during construction Items that were regularly discussed…  Protection of completed areas  Timing & establishment of vegetation  Transition from contractor to City
  46. 46. Maintenance going forward…  Coordination between departments
  47. 47. Maintenance going forward…  Component based  Department based  Initial establishment  On-going maintenance
  48. 48. And finally…  Adapt to actual conditions  Learn lessons  Get people involved internally & externally  This is only the beginning…
  49. 49. Speakers discuss what’s next and significance of the project THE FUTURE
  50. 50. Steve Rodie, FASLA, PLA University of Nebraska – Omaha Director, Center for Urban Sustainability Future Education & Teaching Opportunities
  51. 51. Education/Teaching – Why Important? “What conservation education must build is an ethical underpinning for land economics and a universal curiosity to understand the land mechanism. Conservation may then follow.” Aldo Leopold
  52. 52. Economics - Ecosystem Services and $$$  Designed services  Natural services  Quality-of-life and community health  Green infrastructure  Cost savings
  53. 53. Mechanism = Natural & Designed Systems
  54. 54. Project Documentation = Process
  55. 55. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Oct 2014 Oct 2014 Oct 2014
  56. 56. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos May 2015 May 2015 May 2015
  57. 57. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Sept 2015 Sept 2015 Sept 2015
  58. 58. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Oct 2015 Oct 2015 Oct 2015
  59. 59. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Nov 2015 Nov 2015 Nov 2015
  60. 60. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Dec 2015 Dec 2015 Dec 2015
  61. 61. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Jan 2016 Jan 2016 Jan 2016
  62. 62. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Feb 2016 Feb 2016 Feb 2016
  63. 63. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Mar 2016 Mar 2016 Mar 2016
  64. 64. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Apr 2016 Apr 2016 Apr 2016
  65. 65. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos May 2016 May 2016 May 2016
  66. 66. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos June 2016 June 2016 June 2016
  67. 67. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos July 2016 July 2016 July 2016
  68. 68. Location: Outlook 14 - LN Missouri Avenue – Spring Lake Park Construction Progress Photos Aug 2016 Aug 2016 Aug 2016
  69. 69. Education/Teaching – Why Important? • “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet
  70. 70.  Bemis Arts Center Photography Students  UNL Water Resources classes  Groundwater Guardian  Kansas State University (urban design classes)  Spring Lake School (Boy Scouts, classes)  Omaha South High School (engineering)  Mississippi River Basin Alliance Educational Interaction - Past
  71. 71. Educational Interaction - Current  Small pollinator garden planting  $500 grant for a community education event – pollinators  Making curriculum connections to Spring Lake School and Omaha South  Annual clean-ups
  72. 72. Education/Teaching – Benson West • “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet
  73. 73. Education/Teaching – Omaha Northwest • “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet
  74. 74. Education/Teaching – OPS Green School Initiative • “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet
  75. 75. Education/Teaching – Telling the Story • “Sustainability of green public spaces is ultimately measured by the public’s acceptance, use and valuing of that space.” Janet Bonet
  76. 76. Questions . . .

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