Comment 77890

By Heartwood (anonymous) | Posted June 02, 2012 at 17:39:14

A little digging...

City of Hamilton Street Tree Planting Policy - Planning & Design

"The Street Tree Planting Program and initiatives shall attempt to establish a robust and flourishing infrastructure of Street Trees that will provide maximum benefits to the community with minimal costs, and conflicts to abutting land uses, traffic circulation (pedestrian and vehicular) and regular maintenance programs. Planting works may be initiated by property owner request or by staff, and will comply with the Design and Layout requirements contained herein.

Planting Layout Regulations

1. Generally the planting of approved tree types will be allowed within road allowances subject to the following requirements:

a) Day lighting Triangles: At the intersection of roadways or vehicular access points, no plant material with a mature height greater than 50 cm within a sight triangle measuring 9 m by 9 m along the boundary of each of the intersecting roadways, measured from the point of intersecting curb lines, except where engineering standards indicate otherwise shall be planted. Exemptions will be made in mature neighbourhoods where historical location patterns will be respected, particularly when existing trees within the area are replaced;

b) Boulevard Width: Boulevards containing a minimum soft surface width of 1.75 m are eligible for tree planting;

c) Boulevard Planting Curb Setback: Tree plantings in boulevards must achieve a minimum setback from the curb face of 80 cm;

d) Curb Face Sidewalk Setback: Tree plantings adjacent to curb face sidewalks must achieve a minimum setback of 1.0 m from the back of the walk (and remain in the road allowance);

e) Driveway Setbacks: Tree plantings shall achieve a minimum setback of 1.5 m from driveways and alleyway entrances and shall ensure avoidance of eventual interference with or obstruction to any improvements installed for public benefit; f) Ditch Setbacks: Tree plantings shall achieve a minimum setback of 1.5 m from the top of the back side of any ditch;

g) Building Setbacks: Tree plantings shall achieve a minimum setback of 3.0 m from any building or structure;

h) Overhead Clearances: Only low-growing tree species that do not attain a mature height greater than 6 m shall be planted under or within 3 m of any overhead power lines, exclusive of street light or service lines. Location exemptions will be made in mature neighbourhoods, where historical location patterns will be respected, particularly when existing trees within the area are replaced. Large growing trees planted within 3 m of the powerlines shall only be pruned by the City of Hamilton to allow the mature crown to grow around the lines;

i) Utility Appurtenance Clearances: Tree plantings shall achieve a minimum setback of
1.5 m radius of a fire hydrant, light standard, utility pedestal, transformer, or water valve;

j) Tree Spacing: Larger, maturing trees should be spaced 10 m apart and smaller maturing trees 6 m apart;

k) Hard Surface Tree Plantings: Tree plantings made in a sidewalk or other hard surfaces must have a minimum of 1.5 m cut-out area. The tree must be set back from the road a minimum of 80 cm from the face of the curb;

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