U.S. Department of Agriculture Natural Resources Conservation Service
GA-ENG-313C Sheet 1 of 1 March 2005
LITTER DRY STACK STRUCTURE DESIGN WORKSHEET (TWO WALLS – BOTH ENDS OPEN)
Watkinsville Oconee River Conservation District: ___________________ Field Office: ____________________________
John Doe Oconee County Cooperator: ___________________________ Location: ______________________________
VL Wb hm hw hs he Ax Lm Li LT FBe
= = = = = = = = = = =
9,000 Volume of litter stored (Form GA-ENG-313A, Item “Operation Storage Requirement.”): ________ ft3 40 Width of building (dimension from inside of post to inside of post): _________ ft. 7 Max height of pile (Max. 7 ft.): _____________ ft.
Height of wall (Max for wooden wall = 5 ft):
5
ft.
5 Height of pile at side walls (Normally equal to the wall height): _____________ ft.
14 Height to gable end closure wall (12 or 14 ft depending on design chosen): __________ ft.
Cross sectional area of pile (calculate below) Length of litter pile (calculate below) Length of building (initial calculation) including freeboard (FBe). Total length; Li rounded to accommodate post spacing Horizontal freeboard between toe of pile and open end of building. Recommend 30 degrees from the vertical on all exposed sides to prevent windblown rainfall from impacting on the containment area.
Open End Open End
30o
Wall he
o
Wall
1 1.5
he
30o 60
o
1 1.5
1 1.5
hm
60
Ax
hm
hw
hs
FBe
Lm Li
FBe
Wb
SIDE VIEW
40 7 7 5 274 Ax = hm Wb- 1.5(hm-hs)2 = ______ X ______ - 1.5 X (_____-_____)2 = _________ ft2 9,000 7 43.3 274 Lm = (VL / Ax) + 1.5hm = ( _________ / _________ ) + ( 1.5 x _______ ) = ________ft 8 FBe = 7 ft for 12 ft high support posts OR 8 ft for 14 ft high support posts = __________ ft
43.3 59.3 8 Li = Lm + 2FBe = _____ ft + 2 x (______) ft. = ______ ft
5 Post Spacing: ________ ft c-c
60 LT = ____________ ft (Rounded to accommodate post spacing. Round to closest even spacing.)
60 40 2,400 Floor area = LT x Wb = ________ x _________ = __________ ft2
Designed by: __________________________________________________ Checked by: ___________________________________________________ Approved by: __________________________________________________
Date: ______________ Date: ______________ Date: ______________