In this episode we see the incredible work that Brad Lancaster and his community are doing to make the Dunbar Spring Neighborhood in Tucson a cooler, more pleasant and human-friendly place to live by using plants as infrastructure and creating a food forest using native plants that are adapted to deal with the desert heat perfectly because they evolved there.
This video shows us how what Brad and his community have done serve as a model as to what could be down to make cities all over the globe more livable, illustrating how human development and nature do not have to be mutually exclusive. Filming this video and seeing that Brad and his people have done made me feel in something I haven't felt in a long time : hope.
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Maximize the harvest by diverting water from one side of street to the other
Brad Lancaster, author of Rainwater Harvesting for Drylands and Beyond takes us on a walk though a neighbourhood in Tucson Arizona in the rain.
He explains the street basin food forest system, the design principles involved in capturing rainwater run off, and how effective 3 planks of wood are for diverting water from one side of street to the other can be.
In this episode - Part 3 of this series (check out the prior video here : • Part 2 "The World Does...  ) - we follow up on Brad Lancaster's work Guerilla Planting Trees on a bleak section of concrete in his Tucson neighborhood. After that, we check out some legal and permitted installations of trees and rainwater catchment basins he and his community installed on the sidewalks and street margins for the purposes of shading the streets, reducing urban heat and more.
For more on Brad and his community's work:
• Subscribe to his YouTube channel:
   / harvestingrainwater Â
• Check out his "Rainwater Harvesting for Drylands & Beyond" books and website:
https://www.harvesting...
• Check out his community's rain-irrigated native food forestry website:
Part 1 here :    • Harvesting Rainwater w... Â
In this second video showcasing Brad Lancaster's work in Tucson, we check out a large Guerrilla Planting project as well as more of the rainwater catchment projects on the neighborhood streets.
For more on Brad and his community's work:
• Subscribe to his YouTube channel:
   / harvestingrainwater Â
• Check out his "Rainwater Harvesting for Drylands & Beyond" books and website:
https://www.harvesting...
• Check out his community's rain-irrigated native food forestry website:
Permaculture instructor Andrew Millison journeys to Tucson, Arizona to film the epic work of rainwater harvesting pioneer, Brad Lancaster. We tour the neighborhood of Dunbar Springs, where Brad has been transforming the hot asphalt streets into a native food oasis over the last 30 years.
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You can grow tanks, rather than buy them, and they'll have a lot more water-harvesting capacity.
This video is about how living sponges (rain gardens) have far greater capacity than non-living manufactured water tanks, in that they utilize and infiltrate water during and immediately after rains to quickly make more room or capacity for the next rain - even if that rain comes just a few hours after the first rain.
Thus rain gardens (in this case, a water-harvesting, traffic-calming chicane or pull out) typically have much more potential for flood-control, groundwater-recharge, bioremediation (natural filtration of toxins), and heat-island abatement (due to the shading/cooling vegetation they grow and the cooling effect of the water transpiring through these "living pumps").
This works in any climate, but the vegetation changes as you change bioregions. The easiest path to success is to use plants native or indigenous to your area and site's microclimate. Go further, and select native plants that also produce food, medicine, craft/building materials, etc so you grow living pantries, pharmacies, craft suppliers, etc.
At minimum, make sure your tanks overflow to rain gardens, so that overflow is used as a resource. And place those rain gardens and their vegetation where you most need that vegetation, such as trees on the east and west sides of buildings to shade out the morning and afternoon summer sun for free, passive cooling.
The ideal, is that once this rain garden vegetation has become established the only irrigation water it will require is the freely harvested on-site water, so no importing/extracting of groundwater, municipal water, or other is needed. This way we can infiltrate more water into the living system than we take out - thereby enabling the recharge of groundwater, springs, and rivers; instead of their depletion and dehydration.
Get more info on how to do this and harvest many other free, on-site waters at:
https://www.harvestingrainwater.com/
where you can buy Brad's award-winning books, "Rainwater Harvesting for Drylands and Beyond" at deep discount direct from Brad at:
https://www.harvestingrainwater.com/s...
For more info on the community water harvesting and native food forestry work check out:
https://dunbarspringneighborhoodfores...
For more videos that expand on this one subscribe to this channel at:
From sterile gravel lot to lush rain-fed paradise!
How a single rain garden sparked the on-going transformation of a once sterile office complex experiencing costly flooding into a growing oasis that harvests onsite rain and massive stormwater flows from neighboring properties in a way that controls flooding, recharges the aquifer, and naturally cleans the water and soils with edible life.
⬇️ BUY MY BOOKS at deep discount direct from me for how to do all that's in the video and more:
https://www.harvesting...
CHAPTERS
0:00 Intro
0:59 Reese Baker and the rain garden that sparked transformations throughout the office complex
1:20 The watershed and its 250,000 gallons (946,000 liters) draining into the rain garden
2:09 non-native Siberian elm tree logs inoculated with oyster mushroom decomposer fungi that help filter water and soil
3:15 Rain garden planted with native edibles in 2017 by local high school's freshman biology class
4:10 Xerces Society documented native bee species supported by the rain garden
4:34 mycelium growing on Siberian elm log
5:31 rain gardens run stormwater from streets and pavement through biology to filter the water (in this case with plants - phytoremediation AND with fungi - mycoremediation) so the filtered surplus stormwater can then recharge the aquifer
6:07 This rain garden is only watered by passively harvested rainwater and stormwater - NO water from municipal system or wells
6:48 How stormwater from once flooded back-side of offices is brought to front-side rain gardens
7:35 Sediment trap
7:46 AcquĂa-like canals or channels then convey once-flooding stormwater to new meandering, stepped rain gardens
8:16 Lesson learned from mistake: Do NOT constrict flow with pipe or you'll experience clogging from floating "debris"
8:55 Stormwater flow through the canal/channel
9:46 Dry gravel pits BEFORE transformation. All roof runoff used to drain to back side of properties.
10:14 Pits now transformed into rain gardens installed just a few months before this video was filmed.
11:47 Stormwater flow through the new stepped and meandering rain garden basins
12:16 Detail on the rock weir that sets the depth of the upstream basin, and creates a waterfall spillway for the overflow water
13:23 On-going replacement of gravel with wood chip mulch
15:04 Media luna basin overflow spillway creating three waterfalls
15:45 Zuni-bowl three-way "valve" that directs much of the incoming stormwater from adjoining properties (and roof water draining off back side of office buildings) to rain gardens in the front yards of the offices.
16:51 How stormwater channels are reducing flooding on the backside of the offices.
18:32 If Reese only had to deal with water coming off on-site office roofs the stormwater channel would not need continuous rock on its bottom, but could instead just have periodic one-rock dam grade control structures
19:16 The flooding problems BEFORE stormwater was harvested
20:25 The undersized designed overflow outlet of the neighboring property's stormwater detention basin
20:49 Stormwater flows from the neighboring property's stormwater detention basin.
By planting the rain before you plant (with water-harvesting earthworks) you will be able to harvest ALL free waters (such as rainwater, stormwater, greywater, air conditioning condensate, or in this case—broken water line runoff) that exist or appear on site.
We had just completed the passive water-harvesting earthworks (but had not yet planted them) at the Tumamoc Resilience Garden when a water line above the garden burst in the night, and filled the earthworks. The big flow from the broken pipe took the path of the stormwater that the garden and its earthworks were designed to capture. All worked wonderfully! No water was lost—all was harvested within the rain gardens.
In this video Brad Lancaster shows you the captured water, and describes nuances of his design that can help you with your passive water-harvesting designs and implementations.
The site is in the dryland city of Tucson, Arizona where average annual precipitation is 11 inches. Filming was done May 10, 2022 in the middle of our hot, dry season. Summer rains usually come the end of June or early July.
Get more info on how to do this and harvest many other free, on-site waters at:
https://www.harvestingrainwater.com/
where you can buy the new full-color editions of Brad's award-winning books, "Rainwater Harvesting for Drylands and Beyond" at deep discount direct from Brad at:
https://www.harvestingrainwater.com/s...
For more videos that expand on this one subscribe to this channel at:
https://www.youtube.com/c/HarvestingR...
Tumamoc Resilience Garden
https://tumamoc.arizona.edu/tumamoc-h...
Passive water-harvesting design by Brad Lancaster
Expert backhoe work by Little John Exacavating
Expert rockwork and finishing work of the earthworks by Dryland Design
