A Street Tree System for New York City 69 



III. Street Tree Planting Specification jSTo. 3. 



(a) Cutting Pavement : 



The sidewalk pavement over the area of the proposed 

 tree pit shall be removed so as to provide an opening 

 4' x 6' 2" or 4' x 6' T" according to the style of tree grating 

 to be used. The outer or street edge of this opening shall 

 be one foot from the outer edge of the sidewalk cnrb. The 

 margins of the opening shall be provided with a half-inch 

 ledge finished in a workmanlike manner. This ledge shall 

 receive the grating in snch a way that the grating shall lie 

 flush with the sidewalk. 



( b ) Grating : 



A wrought or cast-iron grating of size and construction 

 know as style " New Haven ", style " New York " or style 

 " Knickerbocker " shall be provided (as illustrated in draw- 

 ings of Planting Specification JSTo. 3). 



(c) The detail requirements regarding sub-soiling, ferti- 

 lizer, tree, guard and stake shall be as stated in Planting 

 Specification No. 1. 



Estimate: 



Excavating and sub-soiling. $6 00 



Cutting and trimming pavement 3 00 



Tree delivered 1 50 



Stake 50 



Guard and attachments 1 00 



Planting .and miscellaneous labor. ... 1 00 

 Cultivation and replacements until 



tree is established 2 00 



Grating (style " New Haven ") 10 00 



$25 00 a tree (a) 



Note. — With the grating style " New 

 York " costing $15.00 the estimate 

 becomes $30 00 a tree (b) 



With the grating style " Knicker- 

 bocker " costing $20.00 the estimate 

 becomes $35 00 a tree (c) 



