LID Presentation

1. Sustainable Site Development: Land Development as Nature Intended Low Impact Development Specifics and Green Building Standards

2. Copyright Materials This presentation is protected by US and International Copyright laws. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited. © Weston & Sampson 2009

3. Michael Clark, PE, LEED AP www.westonandsampson.com [email_address] Low Impact Development Specifics

4. Learning Objectives At the end of this program, participants will be able to: 24 Green Roofs / 49 Water Conservation - Using Low Impact Development practices and techniques the participant will be able to evaluate site conditions, and collaborate with owners, civil engineers and landscape architects, to successfully design a sustainable site which seeks to replicate the natural surface and ground water hydrology thus protecting water quality and reducing run-off. 22 Environmental Education - Participants will be able to select and identify the appropriate pre-requisites and credits applicable to Low Impact Development practices to successfully complete sustainable site certification from three Green Building/Development Certification Programs.

6. Courtesy May, U of W Natural Conditions Hydrology 101

7. Courtesy May, U of W Developed Conditions Hydrology 101

10. The Problem Conventional Development Smart Development Reduce land clearing and grading costs Reduced infrastructure costs Protect regional water quality Reduce stormwater runoff The Solution Impacts on open space

11. Conventional Development Centralized Pipe and Pond Controls

12. LID Development Conservation Minimization Soil Management Open Drainage Rain Gardens Rain Barrels Pollution Prevention Disconnected Decentralized Distributed Multi-functional Multiple Systems

15. The standard planning process involves four-steps, after the yield is established. Source: R. Arendt

16. Identify conservation value areas on the site such as wetlands, significant trees or tracts of forest, steep slopes, habitat, cultural resources or buffer zones. Remove these from the “developable area”. 1. Source: R. Arendt

17. Place houses in the remaining area in a way that would maximize residents enjoyment of protected areas by providing access to open space and preserving views. 2. Source: R. Arendt

18. Align roads and trails on the site to provide pedestrian and vehicle access and maximize stormwater management options. 3. Source: R. Arendt

19. 4. Draw lot lines around the homes.

21. Conservation Open Drainage Rain Gardens Amended Soils Rain Barrel Lot Level Source Controls LID Site Porous Pavement Create a Hydrologically Functional Lot Narrower Streets

22. Photo Copyright 1999, Center for Watershed Protection Many roads are much wider than they need to be. Better Site Design of Roadways & Parking Areas

23. Number of Accidents as a Function of Residential Street Width Source: Swift, et. al., 1998

27. SOLUTIONS : Dry Well Infiltration of Roof Runoff Rooftop Runoff to vegetated swale Source: CWP

31. Bioretention Treatment, Retention, Infiltration, Landscaping

32. Ref: Preliminary Sarasota County LID Manual, 2008 Bioretention Plan View

33. Soil / Flora / Fauna Ecological Structure A Dynamic Living Ecosystem Cycling Nutrients, Chemicals and Organic Energy Sources Plants, Bacteria Protozoa, Fungus Worms, Insects Mammals .

35. Bioretention Area Small parking lots

36. Bioretention Applications Urban retrofits High-density areas

42. Green Roof Systems

44. Rain Barrels and Cisterns Runoff Reduction and Water Conservation Large-Scale Applications

46. Stormwater Planters

66. Cohasset L.I.D. Stormwater Retro-Fit Project Lily Pond is Cohasset Drinking Water Supply Control of discharges to Lily Pond required to protect public health and ensure safe Drinking Water Supply

71. Biorentention Soil Mixing Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

72. Excavation Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

73. Underdrain Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

74. Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond Graded Filter

75. Placement of Bioretention Soil Mix Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

76. Planting June 2005 Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

77. First Rain Storm Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

78. September 2005 Cohasset Stormwater LID Project Demonstration Raingarden at Lily Pond

81. AIA Florida is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non-AIA members are available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. Slide Required with AIA Florida as Registered Provider