1996-02-06_REVISION - M1977493 ‎(15)‎

• Permit No: M1977493
• IBM Index Class Name: REVISION
• Doc Date: 2/6/1996
• Doc Name: SWMP-II
• From: CMC
• To: DMG
• Type & Sequence: TR7
• Email Name: ACS
• Media Type: D
• Archive: No

tAB1E 17
MAXIMUM CONTINUOUS SLOPE LCNOTHS ACCEPTABLE rOR VARIOUS EROSION CONTROL MEASURCB
.-ACCEPTABLC SLOPC LENGTHS EXPRESSED IN FEET.-
. of Aee r1shmet" - Beene un, M nee.
A. Permanent mod or permanent seeding (11.63)
with 90% germination, Adequate surface prep-
aration and irrigation necessary.
0. Heavy mulching. Asphalt emulsion (7.75)
applied at a uniform rate of 1.250 gels/acre.
Alternatively, heavy straw or hey mulch app-
lied at a untform rate of 2 tons/acre.
C. Temporary seeding of field bromegrase (4.6S)
with 90% germination. Adequate surface prcp-
aratlon and Irttgatlon necessary.
D. Temporary seeding with selected presses (3688)
or small grains, or fiberglass mulching.
Crassest perennial ryegrau, millet or Sudan
grass, 90% germination required. Adequate sur-
face preparation and Irrigation necessary.
Fiberglass mulch applied at a uniform rate
of 1/1 ton/sore.
E. Heavy mulching with wood chips-0 6 (3.32)
tons/acre.
F. Hey mulching 0 1-1/1 torizAare. 0.33)
0. Wood cellulose mulching 0 1-3/4 tons/ (1, 8)
acre or temporary seeding of annual ryegrase
with 90% germination.
H. Hay mulching 0 1 ton/scra. (0.93)
1. Hay mulching 0 1/1 ton/scre, (04183)
1. Packed earth, contour furrowed (0.165 to 7%slo
with bulldozer root rake or slml40.398 on 1-129
ler turrowing device. Furrows (0.291 on 13-11
must be horizontal or perpendi- (0.258 on 19-2!
cularto elope pitch.
K. Deep loose earth with rough surface.toose (0,11
earth must be more than 12" deep uniformly.
L. Deep loose earth with smooth surface. (0.2S
Loose earth must be more than 12• deep uni-
formly. Alternatively, packed earth surface
heavily rutted with equipment tracks In all
directions.
M.Shal low loose earth under l2•in (0.230)
depth.
N, Pecked earth, beokbladed with bull- (0.191)
dozer blade horizontally to pitch of slope.
(Alternatively, beckbledad vertically with
root rake,)
O, packed earth backbiaded vertically (0.179)
with bulldozer blade.

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-•- --------- ---- no lim its-- ---- ----- ----- ---- ---- --- ---- ---- ,
1660 1160 600 360 210 65 42 21 -A
.... .......... ---- no lim its.. ---- ----• ---- ---- ---- ----- 1800 660 57S 480 280 134 73 29 10 0 -B
--• ---- no li mits . ..... ..... •--- ----- ---- ..... ..... 1250 67S 420 280 190 130 63 3S 10 0 0 -C
--- ---- no li mits - ---- ---• ---- ----- ---- ---- 11110 800 470 290 188 116 92 11 24 It 0 0 -D
--- ---nilimit ---- ---- ---- ---- ----- ---- 2000 1000 875 330 210 US 90 65 31 18 0 0 0 -E
--- no 1; Its- ---- ..... ..... -•.. -•--- 1700 1100 880 280 160 110 68 42 31 18 0 0 0 0 -r
--- -no limits - ---- -•-- --- ---- --•« 1200 700 320 170 100 60 40 30 20 0 0 0 0 0 -O
--• no IYaIts- ---- ---- ---- ---- 800 300 190 IRS 45 26 18 0 0 0 0 0 0 0 0 -H
--- -no limits- ---- ---- 1600 180 140 75 46 22 0 0 0 0 0 0 0 0 0 0 0 -t
>e>•- -no limits- ---- ---- 1600 480 140 .75 48 16 0 0 0 0 0 0 0 0 0 0 0 -)

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no Ilmite --
----
1500
310
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I)'-- no 11 Its-- 000 980 230 68 33 22 0 0 0 0 0 0 0 0 0 0 0 0 0 L
no f lml)s 2000 1700 700 160 SO 26 18 0 0 0 0 0 0 0 0 0 0 0 0 0 -M
700 1400 1100 100 380 10 30 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -N
300 1000 900 700 300 70 20 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -0

r'1 n 1