16-0139 07 SHEET PRELIMINARY GRADING - SECONDARY 10-24-17delineoted
wetlond-- .....
8$050
.... .... ... .... .... .... .... .... I.
Al
. ..........
0 30 60
Feet
' SCALE: 1"=30`
' -
Recommended Toe -in Method
Set Posts Firmly (Post Shon Be Ook
\or green treoted)
\ robric per MNDOT 3886,
Fosten with Loth, Noils or
ge Of
6" Min. Depth
47
� Dig or Disc Trench Loy in Fobric & Bookfin
EROSION CONTROLTYPE 1
`
Steel Fence Posts
mhun be used to
Support Snow rmnom
(Woven wn,m mpy beRET. WALL
`^�
41 Submkutmd for Snow
........ rmnmm)
to to
1000,
46
AO X-94
A Edge
10 o �,e EROSION CONTROL
�pllllllj
OA
FENCE TYPE 2
Steel Fence Posts
\-age
mhon be used to
Support Snow Fence
ga(
(Woven Wire moy
100i Snow Fence)
HaX or Straw Bales
Silt Fence
TF= 9-4 Two rebors driven through bole
Ztltilitr-t asem IS to 2.0" into the ground.
Bales to be recessed 6w below
N 10;e
~=~— *mow
`
Bales um m_be tied with
u
Non-Degroomwwm��_/.
L FENCE TYPE 3
""Ill-iii—RET. WALL
176\ 0 T— 938. 0
�-Willi
H WL 9J4.8 7 911 SILT FENCE DETAIL
NNI
940
9J4 GRADING AND EROSION CONTROL NOTES
SE
J 9:115 Al
-~^~� 1. THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN
\21
APPROXIMATE WAY ONLY. THE CONTRACTOR SHALL DETERMINE THE EXACT
-~~~ ' LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK. HE AGREES
- ISS TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMANGE8 WHICH MIGHT BE
-��^ OCCASIONED BY HIS FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL
W W W W .\V VV 1i UNDERGROUND UTILITIES.
xis it. WM W W W to SS S,
2. CONTRACTOR SHALL BE FAMILIAR WITH AND FOLLOW ALL REQUIREMENTS OF THE
MPCA NpDE8 PHASE U PERMIT FOR CONSTRUCTION ACTIVITIES. THE CONTRACTOR SHALL
CONDUCT WEEKLY EROSION CONTROL INSPECTIONS, INSPECTIONS AFTER 24 HOUR RAINFALL
/ ~�~~ ' °�, ~~~~~~~�~ ' �
`~~~W / ' --T-- ' ' --_ . . ' --- ' ' | ---' ' ' --_� ' EVENTS OF 0.5 OR MORE AND MAINTAIN INSPECTION LOGS THAT INCLUDE CORRECTIVE MEASURES
~~� �� / ' | TAKEN BY BEGINNING CONSTRUCTION, THE CONTRACTOR ACKNOWLEDGES THE TERMS
' / E�M* _..~'. . . _~.� __ . .
\ ' OF T�|8 PERMIT AND AGREES �� ABIDE BY THEM.
�`������ ' '
R
/hv=922. J7 �~ ' 3. ALL SILT FENCE SHALL BE INSTALLED PRIOR TO ANY GRADING ACTIVITY' ' UNLESS OTHERWISE NOTED.
�T SEED MIXTURE �5O / ^�- �~' � r- 4. ALL DISTURBED AREAS SHALL BE STABILIZED WITH �N/D
'-
(70 LBS/ACRE) AND MN/DOT MULCH TYPE 1 (� TON/ACRE �� DISC ANCHORED).
\ / _ ' '- ` ' .
/ A /^� '� /� ^�'� A
'T/ / ^� / � / � �—FER�L|�R ��L BE 24h��4. �E MAX|MUM �ME � �EA <� REM�N �EN �EN
. ' , ` , ` � , ` ' . /�, ' '
DO / � � --THE AREA |8 NOT AC�VELY BE|NQ WORKED |�� 7 DAYS FOR SLOpES 8TEEpER THAN
G% / K K \ � \ � / � ~� \ � / V / 319 14 DAYS FOR SLOPES 10:1 TO 3:1, AND 21 DAYS FOR SLOPES FLATTER THAN
10:1.
15 In )F, x. A4H —S n 5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR TEMPORARY DITCHES, PIPING, OR
` �22. 0 / | OTHER MEANS REQUIRED TO INSURE PROPER DRAINAGE DURING
CONSTRUCTION.
` 8. ANY DEWATERING SHALL BE DISCHARGED TO A TEMPORARY SEDIMENT BASIN.
7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTENANCE OF ALL EROSION
CONTROL DEVICES UNTIL SITE HAS A UNIFORM VEGETATIVE COVER WITH A DENSITY
OF 7O� OVER THE ENTIRE PERVIOUS AREA MAINTENANCE SHALL INCLUDE B \. | � �� | �u T NOT u
BE LIMITED TO THE FOLLOWING:
\ / o. REMOVE SEDIMENT FROM PONDS AND DITCHES WHEN HALF FULL AND UPON
� \ /
\
COMPLETION OF CONSTRUCTION. (WITHIN 72 HOURS)
\ / / b. REMOVE SILT WHEN ACCUMULATION REACHES ONE-THIRD THE
HEIGHT OF THE SILT FENCE. (WITHIN 72 HOURS)
\ o MAINTAIN ROCK CONSTRUCTION ENTRANCE
\ \ .� . REPLACEMENT DURING
CONSTRUCTION MAY BE NECESSARY.
` ' \� \
�0�� �' ANY DEPOSITING OF SILT OR MUD ON NEW OR EXISTING STORM SEWERS
\
OR 8WALE8 SHALL BE REMOVED AFTER EACH RAIN AND AFFECTED AREAS
w, \ CLEANED.
edge of pond~' ''40/' �� \ � -------- ------- ------ ------ ------ -------- ------- ------ ------ ------- 8. THE CONTRACTOR SHALL BE RESPONSIBLE FOR KEEPING EXISTING HARD
` \ \
� \ SURFACES CLEAN OF SEDIMENT AND MUD. SEDIMENT 8c MUD SHALL BE
REMOVED WITHIN 24 HOURS OF DISCOVERY.
S. THE CONTRACTOR SHALL COMPLETELY REMOVE ALL TEMPORARY EROSION AND
Ex./5"C%4P SEDIMENT CONTROL MEASURES WHEN THE SITE HAS 70% VEGETATIVE DENSITY.
---/�mw=g/7g5
\ �� 1(l COLLECTED SEDIMENT, ASPHALT AND CONCRETE MILLINGS,FLOATING DEBRIS, PAPER,
� ~ \ z�mp��/��� \ � PLASTIC, FABRIC, CONSTRUCTION AND DEMOLITION DEBRIS AND OTHER WASTES MUST
BE DISPOSED OF PROPERLY AND MUST COMPLY WITH MPCA DISPOSAL REQUIREMENTS.
11. STORAGE AND DISPOSAL OF 0L, GASOLINE, PAINT AND ANY HAZARDOUS SUBSTANCES
u//Cr mr' /m rnuD/ /^mrr' vmrL4 uDr^ mron ^nnm4Z