Bioretention: Parking lots

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On commercial, industrial and multi-unit developments, a popular choice is to integrate bioretention into parking lot landscaped areas. These distributed cells typically accept sheet flow through multiple curb cuts, have shallow depression storageA technique for incorporating shallow depressed areas into urban landscaped areas for storing and infiltrating runoff. Depression storage areas are small and have limited capacity and limited duration of retention in order to address property owner concerns relating to insects, damage to structures and inconvenience of ponded water on their property. ≤ 100 mm, and a total area of 5 -200 m2. Although many parking lot schemes include long linear bioretentionA shallow excavated surface depression containing prepared filter media, mulch, and planted with selected vegetation. cells (≥ 0.6 m wide), infiltration is optimized by having a level grade and a level base, unlike a bioswale.

Winter maintenance

Salt can be damaging to the planting in parking lot bioretentionA shallow excavated surface depression containing prepared filter media, mulch, and planted with selected vegetation.. To help minimise this, bioretentionA shallow excavated surface depression containing prepared filter media, mulch, and planted with selected vegetation. practices adjacent to parking areas should always have an underdrain and slat use be reduced through good design and planning of the parking lot.

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