Nashville creates Tennessee's first ‘green’ street

Trees are planted in rain gardens or 8x8-foot tree grates with adjacent structural soils providing a minimal root zone of 100 square feet. Twenty recently planted Chinese elms were successfully transplanted to a nearby boulevard.

Deaderick Street was reduced from four to two lanes of traffic divided by a median. The original 30 feet of sidewalk on each side are divvied up into a 10-foot market zone for kiosks, a 12-foot pedestrian zone, and an 8-foot tree planting zone.

Low-impact design increased pervious surface area by more than 700%: 12,000 square feet of planted area in rain gardens and bioswales and 5,000 square feet of porous concrete underlaid with structural soils.

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