PERMFILE60727

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: West Buzzard Gulch No. 3 Spillway Modif & East Pyeatt Ponds Const Drawings & Spillway Designs for 88
• Section_Exhibit Name: APPENDIX Q SECTION XX & SECTION XXI
• Media Type: D
• Archive: No

Filter fabric should be stapled (6-8" size)
down to prevent washout of lines or bank

material
c~o
0
through the riprop.
~
~~
. ZWde
~p Q, Filter
~ fabric to extend 1-2 feet beyond edges O I
to
~•.b~.o. of core trench (core trench to approx. 1 foot depth).
~ T
'

G:
~~ Q

~
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.°o. Riprop shall extend 1-2 feel below the l+J
~~.Q: .:'Q;.''~o normal spillway bottom. ~ t-
o'.o'. ~ .9:.
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p
o...
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o ~ ° Q'°"

;c e.
'
°... U. o.
:od
:O:.O','' •.'••ra•. The bank should be graded to a 3:1 side
~O~~O"•O'
l7.'o'.Q:O '~p•'o
'
Q: slope or flatter. 'I
o:O;o. Go i I

io:.o.oa
o .•
r
Q
o oo:~•o.

a:o': I
.
.;
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5'. C)..~. o See cross section for additional detail (Fig. XX-3).
obO o:•. :0 pa.
•~OQ~~ :O: oi. I
The riprop will extend up the
bank far enough to give adequate
protection against scour by ice
or running water.
The rock shall be placed in a manner
(by hand or with machinery) that will
insure that the riprop in place shall
be reasonably homogeneous with larger
rocks uniformly distributed and lirmly
in contact with one another.
-~ ° °' o'/.'o.:".O O. Riprop specifications are os follows:
.'. .o °.... ., ..
~Q~. ~~:'~ ~ C7' 1) IJO more than 107. of the total quantity (by weight) shall consist
6.~ o~.vo~.~~~s of pieces weighing less than 10 pounds.
Q~:b:' ~~:~o'~,
~~~~° 2) Pieces weighing 10 pounds or more shall conform to the following
weight distribution.
WI. o! In tlivitluol nieces (N) 7. of the M of Pieces This Weight or Heavier
300 or more 0 - 5
150 - 300 10 - 25
100 - 300 25 - 50
50 - 300 50 - 70
FIG. XX-2. PLAN VIEW O~~PILLWAY MODIFICATION. REVISED~'R 12'RA,'