Skip to Content

Maximize the harvest: diverting water from one side of the street to the other to fill all rain gardens

A simple strategy to divert stormwater from one side of the street to the other in order to fill all the rain gardens on both sides of the street in a way that does NOT cause any flooding, but rather reduces flooding, while it also rehydrates the community and watershed and provides free irrigation water for a native food forest.

Filmed August 2022 by Brad Lancaster, just as an intense storm of about 0.6 inch (15 mm) of rain was subsiding.

Get more info on how to do this and harvest many other free, on-site waters at:

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:

For more videos that expand on this one subscribe to this channel at:

Harvesting Rain from a 1,000+-Year Storm Event
In the link below, see how we transformed a 5-year, 1.5-inch (38-mm) rain event into a 1,000+-year, 19.5-inch (495-mm) rain event with a simple flow diversion. The results were fantastic.

Eddy or backwater basins

How to maximize your harvest, maintain public path access, and avoid underground utilities with strategies that divert water from one street-side water-harvesting earthwork to another using free gravity

To calculate the ideal size of your water-harvesting basins, their capacity, and their costs see
the calculation appendix and supporting chapters of “Rainwater Harvesting for Drylands and Beyond, Volume 2, 2nd Edition”

To estimate the water needs of your plants to then balance your rain garden plantings with the amount of water you harvest in your rain garden see the plant appendix in “Rainwater Harvesting for Drylands and Beyond, Volume 1, 3rd Edition”

Dunbar Spring Neighborhood Foresters
and our rain-irrigated native food forestry efforts

Sonoran desert native food plant resources

Before and after photos of green infrastructure in Dunbar/Spring Neighborhood

If you want to like or comment on this video go here

Neighborhood Food ForestryPassive SystemsRainwater HarvestingStormwater & Street Runoff Harvesting