REV08315

• Permit No: M1977210
• IBM Index Class Name: Revision
• Doc Date: 7/11/1989
• Doc Name: COMPUTERIZED TREE PLANTING MODEL FOR SNYDER QUARRY AMENDMENT
• From: MARK A HEIFNER
• To: MLR
• Type & Sequence: AM3
• Media Type: D
• Archive: No

SNYDER QUARRY TREE PLANTING MODEL
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I A I I B I I C I I D I I E 1 1 F I I G I I H I
A HODEL OF TREE PLANTING DENSITIES AT SNYDER QUARRY
BENCH PATTERN
ELEVATION DIFFERENCE OF AREA TO BE BENCHED= 200 FEET
MAXIMUM WALL HEIGHT = 30 FEET
NUMBER OF BENCHES PREDICTED = 6.666667
BENCH NUMBER TO USE = 7
LENGTH OF AREA TO BE BENCHED =
AVERAGE WIDTH OF BENCHES =
AVERAGE WIDTH TO USE IN CALCULATIONS =
AVERAGE LENGTH OF BENCHES =
TOTAL AREA OF BENCHES =
LEVEL AREA UNDER SOUTH PEAK =
500 FEET
71.92857 FEET
71 FEET
325 FEET
161525 SQUARE FEET
3.71 ACRES
1.9 ACRES
60989 SQUARE FEET
CALCULATION OF AREA AVAILABLE FOR TREE PLANTING:
DEPTH OF MATERIAL AT TOE OF BENCH = 1 FEET
MEAN DEPTH OF MATERIAL AGAINST WALL= 6 FEET
ANGLE OF FILL EXCLUSIVE OF TOE DEPTH 9.03 DEGREES
MIN DEPTH FOR TREE 3 % C~~
DEPTH ABOVE BASE LAYER = 2 ~ F C T
WIDTH OF NO TREE PLANTING = 28.9 FEET
WIDTH FOR TREE PLANTING = 92.6 FEET
AREA FOR TREE GROWTH = 96915 SQUARE FEET
ADD LEVEL UNDER SOUTH PK = 60984 SQUARE FEET
157899 TOTAL
3.62 ACRES
MIN DEPTH FOR TREE 2
DEPTH ABOVE BASE LAYER = 1 FEET
WIDTH OF NO TREE PLANTING = 19.2 FEET
WIDTH FOR TREE PLANTING = 56.8 FEET
AREA FOR TREE GROWTH = 129220 SQUARE FEET
ADD LEVEL UNDER SOUTH PK = 60989 SQUARE FEET
190204 TOTAL
9.37 ACRES
AVERAGE OF 29" AND 36" = 9.00 ACRES