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*''S<sub>x</sub>'' is the cross slope ratio (typically between 0.015 and 0.04)}}
 
*''S<sub>x</sub>'' is the cross slope ratio (typically between 0.015 and 0.04)}}
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The value obtained for total inlet width can then be divided by a chosen number of inlets to determine the required width of each curb cut inlet.  Curb cut inlets draining roadways should be a minimum of 0.45 m in width and are typically no wider than 2 m.   
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The value obtained for total inlet width can then be divided by a chosen number of inlets to determine the required width of each curb cut inlet.  Curb cut inlets draining roadways should be a minimum of 0.45 m in width and are typically no wider than 1.5 m.   
    
Where the curb cut width is constrained and a greater flow into the BMP is desired, the effective cross slope (''S<sub>x</sub>'')  may be increased by adding a depressed concrete apron.
 
Where the curb cut width is constrained and a greater flow into the BMP is desired, the effective cross slope (''S<sub>x</sub>'')  may be increased by adding a depressed concrete apron.

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