Changes

*Inlet aprons or depressions increase inflow effectiveness. Aprons typically drop 50 mm into the bioretention cell, with another 50 mm drop behind the curb to maintain inflow as debris collects.

*Inlet aprons or depressions increase inflow effectiveness. Aprons typically drop 50 mm into the bioretention cell, with another 50 mm drop behind the curb to maintain inflow as debris collects.

*Gutters with steep cross slopes can be hazardous, especially to people bicycling. Curbside and protected bike lanes along concrete aprons should be at least 1.8 m to give cyclists adequate clear width from the curb and any pavement seams. Aprons could also be marked visually to indicate their perimeter.  

*Gutters with steep cross slopes can be hazardous, especially to people bicycling. Curbside and protected bike lanes along concrete aprons should be at least 1.8 m to give cyclists adequate clear width from the curb and any pavement seams. Aprons could also be marked visually to indicate their perimeter.  

*Where the curb alignment along the street is straight, the curb opening may optionally have a bar across the top of the inlet. For aprons into bioretention swales, the curb may angle into the cell to improve conveyance of gutter flow into the facility in the planting strip.

*Where the curb alignment along the street is straight, the curb opening may optionally have a bar across the top of the inlet.  

*For aprons into [[bioretention]], the curb may [[curb cuts|angle into the cell]] to improve conveyance of gutter flow into the facility

*A depressed concrete apron can be cast in place or retrofitted in by grinding down the existing concrete pavement.

*A depressed concrete apron can be cast in place or retrofitted in by grinding down the existing concrete pavement.

|

|