Structural Soil in Melville St, Hobart
Case Study Information
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Case Study Description
Design &/or as constructed detail
The street was identified by the local community as being a priority for street tree planting. Through a workshop organised by a local community member and facilitated by a consultant, the adjacent residents came up with a hand drawing showing notional locations for tree planting along the middle of Melville Streets. The City then undertook investigations into the feasibility of the plan- most importantly about whether the road was wide enough to accommodate traffic, parking, bike lanes and trees. This demonstrated that the planting was feasible. The design and construction was undertaken by internal crews
Within the tree pit our standard soil mix was used- this is comprised of loam, composted bark, gravel and fertilizer
While the concept design show a structural soil for only the width of the center median, we were able to install wider pits of approximately 4×4 or 4×5 m (depending on underground service locations). The structural soil was installed using the City of Stockholm method (Planting Beds in the City of Stockholm; A Handbook, 2009)
Trees were watered manually for the first two years of establishment using a water truck. Tree watering is undertaken by the City’s internal tree crew.