The Mars Hill Stormwater LID Demonstration Project

Transcription

1 The Mars Hill Stormwater LID Demonstration Project LID Summit March 26, Tim Ormond, P.E. HydroCycle Engineering

2 The Mars Hill Stormwater LID Demonstration Project 1) The Project 2) The Human Elements 3) The Research 4) The Take-Away

3 Mars Hill, NC Mars Hill Source: visitnc.com

4 Project Site Mars Hill, NC Population: ~ 2,000 Home of Mars Hill University Avg annual rainfall < 40

5 Quick Facts Mars Hill Town Hall 1.25-acre site Ivy River Watershed, 303(d) List Grant-Funding: DWR, PRF, CWMTF Sponsor: Madison County SWCD Partners: Mars Hill, Housing Authority Research/Planning/Design: HydroCycle Engineering Mary Weber ASLA Living Systems Design

6 Town Hall Housing Authority Housing Authority

7 Before (Dry)

8 Before (Wet)

9 Housing Authority

10 Housing Authority

11 Valley

12 Runoff

13 The Project

14 Project Goals 1) Manage Stormwater. Reduce the stormwater volume and improve the quality of stormwater leaving the Mars Hill Town Hall site in an effort to restore water quality in the Ivy River watershed. 2) Educate and Inspire. Create a demonstration project that will serve to educate and inspire the local community on the importance of stormwater management and LID solutions.

15 Design Philosophy Inspired by Permaculture Ecological design system Eco-mimicry Understanding and designing interconnections o Create resiliency o Increase efficiency o Reduce or eliminate waste Techniques Views humans as vital part of the ecosystem Strategies Principles Ethics Permaculture Design

16 Design Goals Integrated system Wide variety of BMP types with proven effectiveness Treatment for the 90% water quality storm (~1.3 ) Accommodate extreme storm events Simple, reproducible, cost-effective designs likely to be considered by local community Make site accessible and enjoyable, including circulation, seating, and shade Develop aesthetically pleasing design Develop low maintenance designs Provide opportunities for collaboration with students Provide BMP monitoring capabilities Minimize costs within limited grant-funded budget

17 Concept Design

18 Steep Slope Bioretention Pilot Project

19 Rainbarrels and Cisterns

20 Living Roof

21 Vegetated Swales

22 Bioretention/Rain Gardens

23 Bioretention/Rain Gardens

24 Stormwater Wetlands

25 Stormwater Wetlands

26 Permeable Walking Trail

27 And the Rest

28 Do Try This at Home BMPs Vegetated Biofiltration Strip Eco-lawn Source: Caltrans

29 Infiltration Garden

30 Mushroom Mycelium Filter Oyster Mushroom Petroleum Hydrocarbons from 20,000 PPM to 200 PPM in 8 Weeks Source: P. Stamets

31 The Human Elements

32 Human Elements Housing Authority Residents Aesthetics Edible Landscaping Town Hall Employees Respite Picnic Area Visitors Local Colleges Research Curiosity Local Students (K-12) Education Nature Learning Inspiration Town Residents Educators Stormwater Nerds Training Ideas Income Local Businesses

33 Meet, Think, and Eat Berries

34 Native and Edible Vegetation 21 tree species 18 shrub species 19 wetland plant species 29 native perennials and grasses 31 of 87 species with secondary benefits as food, medicine, spice, etc.

35 Educational Signage

36 Interactive Trail Map (Fun for All Ages)

37 Interactive Trail Map

38 The Research

39 Research as a Connection Warren Wilson College UNCA Mars Hill College Sampling ports at each BMP Innovative BMPs Living Laboratory Outreach to Colleges Tours Guided and Self- Guided A-B Tech Haywood Community College Madison SWCD

40 Steep Slope Bioretention

41 Bioretention with Mycelium

42 Bioretention Only: 376 CFU/100 ml Bioretention with Mycelium: <10 CFU/100 ml

43 Mycorrhizal Fungi With Without Source:

44 Mycorrhizal Fungi Increases root surface area by x Increases nutrient uptake Enhances plant growth and disease-resistance Source:

45

46 Mycelium Filter Pilot Study

47 Bench Scale Study A-B Technical Community College King Stropharia Mushroom Mycelium 93% Reduction in E. coli vs. Control Filter

48 Bioretention with Mycelium

49 Research 4 Local Colleges 5 Senior Research Projects 1 Bench Scale Study 2 LID Conferences

50 The Take-Away

51 Lessons Learned Humans are Vital part of the Ecosystem Plan and design for human connections Greater connections = Greater long-term project success and resilience Work with many stakeholders and funding sources for broad input and support Partner with Colleges and Other Schools Consider research as a connection Incorporate simple, understandable try this at home BMPs Applied mycelium research

52 Before

53 Construction

54 Construction

55 Construction

56 Complete

57 Complete.

58 Fully Alive.

59

60 Thank you.