SW4230601_Plansheet - Misc. Detail_20230911

---,FA�rMeIVt PERMANENT SEEDING NOTES RIP-RAP APRON ENERGY DISSIPATOR
--- - f DEFINITION FOR STORMWATER OUTLET PROTECTION
"""-'SHOULDER SEEDING DISTURBED AREAS WITH PERENNIAL GRASSES AND (OR) LEGUMES TO PROVIDE A 1. APRON LINING MAY BE RIPRAP,
i r
PERMANENT VEGETATIVE COVER TO LESSEN RUNOFF AND SOIL EROSION. GROUTED RIPRAP OR CONCRETE a' -
SEE INSET 'A' ADOWN LOPE STAKE PURPOSE Z L IS THE LENGTH OF THE
#57 WASHED STONE UPSLOPE ST E TO LESSEN SOIL EROSION AND PERMANENTLY STABILIZE DISTURBED AREAS CREATED BY GRADING OF CONSTRUCTION SITES. RIPRAP APRON.t' r ISOMETRIC VIEW ' <% ��/� 3. d - 1.5 TIMES THE MAXIMUM STONE 6" CLASS I RIP RAP V�41 �'• � I " ' 'i��� '" CONDITIONS WHERE PRACTICE APPLIES K ,ki DIAMETER BUT NOT LESS THAN 6'. p _ A� '�' - k,� ALL BARE S01L AREAS ON CONSTRUCTION SITES WHICH ARE NOT COVERED BY STRUCTURESj A p
WATTLE ,t STAKES 11 t 4. DIMENSIONS AND SPECIFICATIONS t p
i.L z OR OTHER EROSION CONTROL DEVICES. 8
FLOW VAR, 11 k MUST BE DETERMINED BY ro Qp 0 p 0 (J
�> Y k 1 • PREPARATION APPROPRIATE ENGINEERING - �0 gj Ctd
a MATTING BACK ,Z;x�'rl 1 ''.r,, �k N .. PREPARE SEEDBED BY SPREADING 3- 6 INCHES OF TOPSOIL OVER AREA TO BE SEEDED. DESIGN METHOD. .40
Fj,. SLOPE INSET "A� 12" (MIN. ',� R � a�`�„ ,. PROHIBITREMOVE LL STONES,BOULDERS,GERMINATION ERM NATION OR PLANTSGROOPWSTH. DEBRIS FROM THE SURFACE WHICH WOULD 0tiA�� 0 0 000 0--tO
`�'I�'`h PIPE INCORPORATE INTO THE SOIL 800 TO 1,000 POUNDS OF 10-10-10 FERTILIZER PLUS 500 UWp L
2' (MAX.) POUNDS OF TWENTY PERCENT(20%) SUPERPHOSPHATE PER ACRE AND TWO TONS OF PLAN p 0 PLAN
MATTING DOLOMITIC LIME PER ACRE UNLESS SOIL TESTS INDICATE THAT A LOWER RATE OF LIME
2' UPSLOPE STAKE SEE INSET B `�J
SECTION NATURAL GROUND 2 MIN• 6' MIN. CAN BE USED.
CLASS I RIP RAP MULCH AFTER SEEDING WITH 1.5 TONS OF GRAIN STRAW PER ACRE AND EITHER CRIMP La
S7 WASHED STONE , STRAW INTO SOIL OR TACK WITH LIQUID ASPHALT AT 400 GALLONS PER ACRE ORE.7 L.
EMULSIFIED ASPHALT AT 300 GALLONS PER ACRE.
6" THICK x 1.5' HIGH (MIN) VA,�V�/ ��,�\A� ,. A J/�A� ���V,, (a ,\\
:�` SELECT SEEDING MIXTURE AND BEST PLANTING DATES FROM TABLE 13.
+J J
d
j / ��' MATTING \ �f�\ \ \\\ '� PLAN .VIEW. PERMANENT SEEDINGS M
ME III 'T
\ 2' DOWNSLOPE STAKEV&> Q1
\\ i STAPLES NOTES: GEOTEXTA.E UNDRtUNER SECTION p_p
CROSS SECTION PLANTS&MIXTURE PLANTING RATE/ACRE PLANTING DATES PIPE OUTLET TO TION -A CHANNEL SEE INSET 'C' VEE DITCH 1. USE MINIMUM 12" DIA. EXCELSIOR, COIR, OR STRAW WATTLE. b
FLOW \ > 2. USE 2 FT. WOODEN STAKES WITH A 2" x 2" CROSS SECTION TALL FESCUE 100-150 LBS, AUG. 15- OCT. 15 RIP-RAP OUTLET OR PLUNGE POOL SECTION A-A
PIPE 2„ INSET B 3. INSTALL A MINIMUM OF 2 UPSLOPE STAKES AND 4 DOWNSLOPE (LOW MAINTENANCE) FEB. 15- MAY 1 P"P1F,OUTLB,TO FLAT AR
2' UPSLOPE STAKE I„ NO �Vt�l iiNED CHANN '­'
STAKES AT N NGIE TO WEDGE WATTLE TO BOTTOM OF DITCH. TALL FEscuE 200-250 LBS. AUG. 15- OC7. 15
'"'J•''.'•.;:" NATURAL GROUND WATERWAYS AND FEB. 15- MAY 1 1. ENSURE THAT THE SUBGRADE FOR THE FILTER AND RIP-RAP
4. PROVIDE STAPLES OF 0.125" DIA. STEEL WIRE FORMED INTO
-.••...,. ' LAWNS (HIGH MAINT. FOLLOWS THE REQUIRED LANES AND GRADES SHOWN IN THE PLAN.
% A 'U' SHAPE NOT LESS THAN 12" IN LENGTH. 4. RIP-RAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID DAMAGING THE FILTER. a
• ` . : .: •`. ..,; �'' ,; COMPACT ANY FILL REQUIRED'IN THE SUBGRADE TO THE DENSITY OF
"'z.,... '••:^:....1 ';.: •',::"',• --,:'�•:•'.('':'. :`•: '- i P XIMATELY EVERY 1 LINEAR FOOT ON BOTH BLEND OF TWO TURF- 200-250 LBS. AUG, 15 - OCI. 15 5. THE MNIMUM THICKNESS OF THE RIP-RAP SHOULD BE 1.5 TIOMES THE MAXIMUM STONE DIAMETER.
\\`\"•/~ \� v ,. �\! '\� \\ 5 SIDES OF WATTLE AND RAT EACH END TO SECURE IT TO THE SOIL. TYPE TAIL FESCUES FEB. 15- MAY 1 THE SURROUNDING UNDISTURBED MATERIAL LOW RERS BY THE 6. RIP-RAP MAY BE FIELD STONE OR ROUGH QUARRY ST(N F- IT SHOULD BE HAR, ANGULAR, HIGHLY WEATHER
SUBGRADE ON UNDISTURBED SOIL MAY AL BE FILLED Q U?
SEDIMENT STORAGE ZONE 4 / "\ PAM(3.5 OZ) 6. INSTALL MATTING IN ACCORDANCE WITH NCDOT SECTION 1631 OF {90%) AND TWO OR INCREASING THE RIP-RAP THICKNESS. RESISTANT AND WELL GRADED.
'� / - THE STANDARD SPECIFICATIONS. MORE IMPROVED 7. CONSTRUCT THE APRON ON ZERO GRADE WITH NO OVERFALL AT THE END. MAKE THE TOP OF THE RIP-RAP �? a'' M
2' DOWNSLOPE STAKE KENTUCKY BLUEGRASS AT THE DOWNSTREAM END LEVEL WITH THE RECEIVING AREA OR SLIGHTLY BELOW IT.
�/ 4 MATTING \ 7. [ROPR TP [P:UACRU,A,ODE (PAM) APPLICATION, OBTAIN A SOIL VARIETIES (10%) Z THE RIPRAP AND GRAVEL FILTER MUST CONFORM TO THE 6. ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RCEIVING STREAM AND PREFERABLY STRAIGHT 0 W o'1 N
�' / , ��_ CROSS SECTION c" fx �> SAMPLE FROM PROJECT LOCATION, AND FROM OFF-SITE MATERIAL (HIGH MAINTENANCE) SPECIFIED GRADING LIMITS ON THE PLANS. 00 LO
AND ANALYZE FOR APPROPRIATE PAM FLOCCULANT TO BE APPLIED THROUGHOUT ITS LENGTH. 1F A CURVE IS NEEDED TO FIT SITE CONDITIONS, PLACE IT IN THE UPPER W I•- N LO
ve o� / , \ TRAPEZOIDAL DITCH TALL FESCUE 100 LBS. FEB. 15- MAY 1 3. FILTER CLOTH, WHEN USED, MUST MEET DESIGN REQUIREMENTS SECTION OF THE APRON. W
) / I , 1 1:. TO EACH WATTLE. AND AND AUG. 15- OCT. 15 9. IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL DISTURBED AREAS WITH VEGETATION. �' Ld I
4L 8. INITIALLY APPLY 3.5 OUNCES OF ANIONIC OR NEUTRALLY CHARGED KOBE OR KOREAN 20-25 LBS. AND BE INSTALLATION.REAPIRROTEC ANYTED MR S BY REMOVING THE RIP-RAP PUNCHING OR TEARING DURING � � �04
WATTLE FOR EROSION CONTROL POI YACRYLAMIDE (PAM) OVER WATTLE WHERE WATER WILL FLOW LESPEOEZA AND PLACING ANOTHER PIECE OF FILTER CLOTH OVER THE DAMAGED 6�LA TENANCE
AND AFTER EVERY RAINFALL EVENT THAT IS EQUAL TO OR EXCEEDS TALL FESCUE AND 50 LBS. y V) I)C)
PERSPECTIVE VIEW SEDIMENT STORAGE AREA INSET C 0.50 INCHESREA. ALL CONNECTING JOINTS SHOULD OVERLAP A MINIMUM 1 �' F-t N
SER[CEA LESPEDEZA 60 LBS. NOV.NOv. t - FEB. t F7. IF THE DAMAGE IS EXTENSIVE, REPLACE THE ENTIRE FILTER INSPECT RIP-RAP OUTLET STRUCTURES AFTER HEAVY RAINS TO SEE IF ANY EROSION AROUND OR BELOW W X Z r. N
10'x3'xl.5' (TYP.) (UNSCARIFIED) COIN THE RIP-RAP HAS TAKEN PLACE OR IF STONES HAVE BEEN DISLODGED. IMMEDIATELY MAKE ALL NEEDED W z UO (0
N TS TALL FESCUE AND 60 LBS. JULY AND AUGUST REPAIRS TO PREVENT FURTHER DAMAGE. W © n p
GERMAN MILLET OR AND Z 0 � m Zz p
SUDANGRASS2 30 LBS. F� y
ROCK PIPE INLET PROTECTION TALL FESCUE 70 LBS, NOV. 1 - JAN. 30i
TUTS 1/4"WIRE MESH AND AND 0 '.. Lj O O N
RYEGRASS2 25 LBS. E- n-In 0
CONSTRUCTION SPECIFICATIONS Z+
COMMON BERMUDAGRASS 8 LBS. (HULLED} APRIL 15 - JUNE 30 W - -r
1. PLACE SLOPE DRAINS ON UNDISTURBED SOIL OR WELL COMPACTED FILL AT LOCATIONS AND ELEVATIONS SHOWN ;
15-20 LBS. (UNHULLED) FEB. i - MARCH 3Q ❑NSITE CONCRETE WASHOUT - � a.
SILT FENCE ON THE PLANS. A A I FOR SPRING SEEDINGS, USE SCARIFIED LESPEDEZA SEED. FOR LATE FALL AND STRUCTURE WITH L LINER U) I a�
1. CONSTRUCT THE SEDIMENT BARRIER OF STANDARD STRENGTH OR EXTRA STRENGTH SYNTHETIC FILTER FABRICS. 3. H2. LND TAMP THE SOIL UNDIGHTLY SLOPE THE IER AND ON OF PAROUND IPE DTHE ENTRANCE ER THE DIKE OSECTION WARDS I IN LTS IFTS E NOT TO EXCEED 6". zWINTER SEEDIANNUALS NGS, UTSCAR[F[ED SEED. -i " A T C 1�ACTUAL LOCATION 9 z ~
2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES NOT EXCEED 18 INCHES ABOVE THE GROUND SURFACE. (HIGHER FENCES MAY 4. ENSURE THAT FILL OVER THE DRAIN AT THE TOP OF THE SLOPE HAS MINIMUM DIMENSIONS OF 1.5 FEET DEPTH, MAXIMUM HEIGHT. ]UE, SUDANGRASS AND RYEGRAIN MUST BE KEPT AT10 2 Q o o 1!1 � � DETERMINED IN FIELD © 0
IMPOUND VOLUMES OF WATER SUFFICIENT TO CAUSE FAILURE OF THE STRUCTURES. 4 FEET TOP WIDTH, AND 3:1 SIDE SLOPES. I \ V ao SIL SIDE SLO SANDBAGS (TYP.) U
3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TOAVOID JOINTS. WHEN JOINTS ARE 5. ENSURE THAT ALL SLOPE DRAIN CONNECTIONS ARE WATERTIGHT. DUST CONTROL OL FENCE <TYP, UR STAPLES z, THE CONCRETE WASHOUT m
NECESSARY, SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST WITH OVERLAP TO THE NEXT POST. 6. ENSURE THAT ALL FILL MATERIAL IS WELL COMPACTED. SECURELY FASTEN THE EXPOSED SECTION OF THE 0 STRU T RES SHALL BE W
4. SUPPORT STANDARD STRENGTH FILTER FABRIC BY WIRE MESH FASTENED SECURELY TO THE UPSLOPE SIDE OF THE POSTS USING HEAVY DRAIN WITH GROMMETS OR STAKES SPACED NO MORE THAN 10 FT. APART. CONSTRUCTION SPECIFICATIONS:I n ,,,,,,z, - MAINTAINED WHEN THE
DUTY WIRE STAPLES AT LEAST 1 INCH LONG, OR TIE WIRES. EXTEND THE WIRE MESH SUPPORT TO THE BOTTOM OF THE TRENCH. 7. EXTEND THE DRAIN BEYOND THE TOE OF THE SLOPE AND ADEQUATELY PROTECT THE OUTLET FROM EROSION. VEGETATIVE COVER-FOR DISTURBED AREAS NOT SUBJECT TO TRAFFIC, VEGETATION PROVIDES TO TRAFFIC, VEGETATION 0 Q �? 3 0 ��`
LIQUID AND/OR SOLID
MIN. REACHES 75% OF THE
5. WHEN A WIRE MESH SUPPORT FENCE IS USED, SPACE POSTS A MAXIMUM OF 8 FT. APART. SUPPORT POSTS SHOULD BE DRIVEN B. MAKE THE SETTLED, COMPACTED DIKE RIDGE NO LESS THAN 1 FT ABOVE THE TOP OF THE PIPE AT EVERY POINT. PROVIDES THE MOST PRACTICAL METHOD FOR DUST CONTROL, �'C
O o o O SANDBAGS (TYP) & X` STRUCTURES CAPACITY,
SECURELY INTO THE GROUND TO A MINIMUM OF 18 INCHES. 9. IMMEDIATELY STABILIZE ALL DISTURBED AREAS FOLLOWING CONSTRUCTION. MULCH (INCLUDING GRAVEL MULCH)-WHEN PROPERLY APPLIED, MULCH OFFERS A FAST, EFFECTIVE MEANS OF DR STAPLES MAX,
6. EXTRA STRENGTH FILTER FABRIC WITH A 6 FT. POST SPACING DOES NOT REQUIRE WIRE MESH SUPPORT FENCE. STAPLE OR WIRE THE CONTROLLING DUST. A 3.CONCRETE WASHOUT
FABRIC DIRECTLY TO POSTS. ISLAND OVER METAL POST(TYP.) SPRAY-ON ADHESIVE-EXAMPLES OF SPRAY-ON ADHESIVES FOR USE ON MINERAL SOILS ARE PRESENTED IN THE TABLE. SECTION A-A BELOW GRADE WASHOUT STRUCTURE STRUCTURE NEEDS TO BE
7. EXCAVATE A TRENCH APPROXIMATELY 4 INCHES WIDE AND 8 INCHES DEEP ALONG THE PROPOSED LINE OF POSTS AND UPSLOPE FROM 1 4_MIN� INS CLEARY MARKED WITH �. ++
THE BARRIER. •, .•.,-v - :...1. CLEARLY MARKED . �� •• ••+w(� �i�,
::..."'",i'.*.').i.."n..;. 7c1 a C y && CONCRETE SIGNAGE �
9. DO NOT ATTACH FILTER FABRIC TO EXISTING TREES. t5'MIN. WATER DILUTION TYPE OF NOZZLE APPLY GALLONS/ACRE L RATION WASHOUT : 0 0.
:+�'�i.a,«;••t`,eM:c.S:s b. , 'k�T .r S B M 18TING DM NI)E NOTES + �'• �(�
. z f ANIONIC ASPHALT EMULSION 7:1 COARSE SPRAY 1,200 i. ACTUAL LOCATION
MAINTENANCE 1o'SPACING G Q . a I T pF�pI�I� 16" LATEX EMULSION 12.5:1 FINE SPRAY 235 0` DETERMINED IN FIELD 1
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL MAKE ANY REQUIRED REPAIRS IMMEDIATELY. 4.Mw CgPA014 FILL(ISLAND) RESIN IN WATER 4:1 FINE SPRAY 300 B SANDBAGS (TYP.) v ;H
/ TOP OF Di StON �...,,.I / , /� /, // / // // SO MIL DR STAPLES 2. THE CONCRETE WASHOUT I w -
SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR ABECOME INEFFECTIVE, REPLACE IT PROMPTLY. REPLACE f � ' NATURAL GROUND d IN NATURAL GROUND CALCIUM CHLORIDE MAY BE APPLIED BY MECHANICAL SPREADER AS LOOSE, DRY GRANULES OR FLAKES AT A RATE THAT o CD P ASTIC LINING v g TRUCTURES SHALL BE y tv: 1
KEEPS THE SURFACE MOIST, BUT NOT SO HIGH AS TO CRUSE WATER POLLUTION OR PLANT DAMAGE'. RATIO
BURLAP EVERY 60 DAYS. 1.0'MIN 1.5'MIN. .111 SEDIMENT CONTROL STONE t'-s" '• DI SIDE W w'M MAINTAINED WHEN THE LIQUID . ty0, : �t)
PLASTIC CORRUGATED INLET I m SPRINKLING-THE SITE MAY BE SPRINKLED UNTIL THE SURFACE IS WET. SPRINKLING IS ESPECIALLY EFFECTIVE FOR SLOPE AND/OR SOLID REACHES 75% es�,(;/•�•••., ••�� 4:1
REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE PIPE (TYP,) OF THE STRUCTURES CAPACITY i 1
DIVERSION CHANNEL •I a'-e' DUST CONTROL ON HAUL ROADS AND OTHER TRAFFIC ROUTES. � � 10' MIN � T❑ PROVIDE ADEQUATE I'+ P .°�
FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. \ F -� 0 0 : .. . HOLDING CAPACITY WITH A �++f++ ,,.%
ROCK INLET PROTECTION STONE USED TO STABILIZE CONSTRUCTION ROADS CAN ALSO BE EFFECTIVE FOR DUST CONTROL. B_o° MINIMUM 12 INCHES OF
REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE ARE TO GRADE AND STABILIZE IT AFTER THE
NOT TO SCALE 0 � 0 6° MIN.&X` FREEBOARD. P7
CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED. BARRIERS-A BOARD FENCE, WIND FENCE, SEDIMENT FENCE OR SIMILAR BARRIER CAN CONTROL AIR CURRENTS AND MAX' N
METAL FENCE POST NOTE: SEDIMENT CONTROL STONE BLOWING SOIL PLACE BARRIERS PERPENDICULAR TO PREVAILING AIR CURRENTS AT INTERVALS ABOUT 15 TIMES B SANDBAGS (TYP,) 3.CONCRETE WASHOUT O
k\i\ pR STAPLES STRUCTURE NEEDS T❑ BE N
TEMPORARY SLOPE DRAINS SHALL BE No. 5 OR 57 THE BARRIER HEIGHT. WHERE DUST IS A KNOWN PROBLEM, WINDBREAK VEGETATION. SECTION BA"
WIRE MESH SHALL BE HARDWARE CLEARY MARKED WITH SIGNAGE
4'MIN CLOTH 23 GAGE MIN. AND SHALL ABOVE GRADE WASHOUT STRUCTURE NOTING DEVICE. 3 0
LEVEL SECTION NOT TO SCALE TILLAGE-DEEP PLOW LARGE OPEN UNDISTURBED AREAS AND BRING CLODS TO THE SURFACE. THIS IS A TEMPORARY O Lij
NOTES: 1.TOTAL DRAINAGE AREA FLOWING TO HOG WIRE (OPTIONAL) HAVE 1/4 INCH MESH OPENINGS. EMERGENCY MEASURE THAT CAN BE USED AS SOON AS SOIL BLOWING STARTS. BEGIN PLOWING ON THE WINDWARD O U (L C6 cc
SILT FENCE MAY NOT
DRAINAGE AREAS OVER E 1 ACRE THE O Z
TOP OF WIRE MESH SHALL BE A EDGE OF THE SITE. 3i In 3s
MINIMUM OF ONE FOOT BELOW THE
SILT FENCE SHOULD HAVE A STORAGE PIT. SHOULDER OR ANY DIVERISION POINT. MAINTENANCE: N 0
-EROSION CONTROL FABRIC EXCELSIOR MATTING (STANDARD AND HIGH VELOCITY) MAINTAIN DUST CONTROL MEASURES THROUGH DRY WEATHER PERIODS UNTIL ALL DISTURBED AREAS HAVE BEEN STABILIZED. Q
2.SILT FENCES SHOULD NOT BE USED AT 1. APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT. IF OPEN-WEAVE NETTING IS USED, LIME MAY BE INCORPORATED DEFINITION: GRAVELED AREA TO BE LOCATED AT POINTS WHERE VEHICLES ENTER AND LEAVE A CONSTRUCTION SITE.
PIPE OUTLETS OR IN AREAS OF o FILL SLOPE BEFORE INSTALLING THE NET AND FERTILIZER AND SEED SPRAYED ON AFTERWARD. PURPOSE: TO PROVIDE A BUFFER AREA WHERE VEHICLES CAN DROP THEIR MUD AND SEDIMENT TO AVOID TRANSPORTING IT ONTO PUBLIC
CONCENTRATED FLOW (CREEKS, DITCHLINES,.1 2. START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE AND UNROLL IT DOWN THE GRADE. ALLOW NETTING TO LAY LOOSELY ROADS, TO CONTROL EROSION FROM SURFACE RUNOFF, AND TO HELP CONTROL DUST. �
SWALES, ETC.) "' ON THE SOIL BUT WITHOUT LATHE US-Do NOT STRETCH. CONDITIONS: TO BE USED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND MOVING DIRECTLY ONTO A PUBLIC ROAD OR W
� 3. TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH NO LESS.THAN 6 INCHES DEEP, COVER WITH SOIL AND TAMP FIRMLY.
STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP END AND EVERY 3 FEET AROUND THE EDGES AND BOTTOM. WHERE 2 STRIPS OF NET ARE OTHER PAVED OFF-SITE AREA. CONSTRUCTION PLANS SHOULD LIMIT TRAFFIC TO PROPERLY CONSTRUCTED ENTRANCES. m
\\\� LAID SIDE BY SIDE, THE ADJACENT EDGES SHOULD BE OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EACH STRIP OF NETTING SHOULD ALSO
�44 CLEAN FILL MATERIAL / rf\
BE STAPLED DOWN THE CENTER. EVERY 3 FEET. DO NOT STRETCH THE NET WHEN APPLYING STAPLES. DESIGN � p
OR 57 WASHED STONE \/� 4. TO JOIN TWO STRIPS, CUT A TRENCH TO ANCHOR THE END OF THE NEW NET. OVERLAP END OF THE PREVIOUS ROLL 18 INCHES, ND STAPLE CRITERIA' AGGREGATE SIZE - USE 2-3 INCH WASHED STONE, WITH GEO-TEX LINER z W
EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT. p: -'G 21 V W
Q00°° � MAINTENANCE TEMPORARY SEEDING 4 DIMENSIONS OF GRAVEL PAD - THICKNESS = 8 INCHES MINIMUM W - � U. J
T FENCE Oaq(`a /\ V © WIDTH = 25 FOOT MINIMUM OF FULL WIDTH AT ALL POINTS OF THE VEHICULAR ENTRANCE I---
S1�- ro °g / �' INSPECT ALL MATTING PERIODICALLY, AND AFTER RAINSTORMS TO CHECK FOR F[LL EROSION, DISLOCATION, OR FAILURE. WHERE EROSION IS DEFINITION 00 Q7 (f) <L W <
00 ao° `%��\/��%/ OBSERVED, APPLY ADDITIONAL MATTING. IF WASHOUT OCCURS, REPAIR THE SLOPE GRADE, RESEm AND REINSTALL MATTING. CONTINUE INSPfCTlONS SEEDING DISTURBED AREAS WITH ANNUAL GRASSES OR LEGUMES TO PROVIDE TEMPORARY @v O AND EXIT AREA, WHICHEVER IS GREATER Q W = U
°Oo°0 0 "-`� UNTIL VEGETATION IS FIRMLY ESTABLISHED. J �pp O LENGTH = 100 FOOT MINIMUM WITH GEO-TEX LINER -3 � 0 � U (n
�/ �°° GROUND COVER TO LESSEN SOIL EROSION. Q I O
III III) j1 II I I I (I II I�� �// / OCX7wo p O0 LOCATION = LOCATE CONSTRUCTION ENTRANCES AND EXITS TO LIMIT SEDIMENT FROM
11 I �� �°o a o EARTH PURPOSE C,� 008 LEAVING THE SITE AND TO PROVIDE FOR MAXIMUM UTILITY BY ALL
Ilpllplil II III T PIT FLOW ANCHOR NETTING IN 6" TR NCH TO TEMPORARILY STABILIZE GRADED CUT AND FILL SLOPES THAT CANNOT BE SEEDED WITH OOQ DOO CONSTRUCTION VEHICLES. AVOID STEEP GRADES AND ENTRANCES AT CURVES IN >-
$EpIMEN 4" PERMANENT VEGETATION WITHIN THIRTY DAYS AFTER COMPLETION. f f 000 O 00.�0 PUBLIC ROADS. m
95.DWG o TO TEMPORARILY STABILIZE GRADED AREAS OF BARE SOIL WHERE PERMANENT VEGETATIVE 00Op000o�0gc SITE CONDITIONS MAY REQUIRE VARIATIONS FROM THESE DESIGN CRITERIA. VARIATIONS WILL BE DETERMINED OR APPROVED
i COVER IS NOT NEEDED OR WHERE GRADING HAS NOT BEEN COMPLETED AND PERMANENT () C)c oC) oao0
iv 1 0 p0 Oo00o c�,v BY EITHER THE APPROPRIATE CITY OR STATE EROSION CONTROL AUTHORITY.
-pi //i/ SEEDING WILL BE DONE LATER. f Q O p O�,I 6Op0 O z s D
I- / 18" OVERLAP O 0 o0q$o o 0 a O ��o00
..,
0- 10(Duo
o� ��/���/,/�/ JOIN STRIPS BY ANCHORING WHERE CONDITIONS
ILEHASABEEN EXPOSED BY GRADING, AND VEGETATIVE COVER IS NEEDED O p0 OOOC (2-00pv 0--bo 0 O y °
F`' I /������� �` AND OVERLAPPING FOR ONE YEAR OR LESS. MAY INCLUDE SUCH AREAS AS TEMPORARY SEDIMENT POND, gFU'J-000g000C 00g0�o oaoO°ao Oo0 TEMPORARY CONSTRUCTION ENTRANCE
SILT FENCE DETAIL I /\/�j \ o fls a O�,�ao Sao a�a ,
-� \//\///��j\// DIVERSIONS, SAIL STOCKPILES, BUILDING PADS, ROUGH-GRADED ROAD BANKS, ETC. [T wi O 0, O�,R� 0 00 00 a Oo0 a0o © a fl0 DETAIL
�// \/ IS ALSO USED TO PROVIDE A TEMPORARY PERIMETER BUFFER. 000 O00 Ou �}O OO O o q Oo o o O O
NOT TO SCALE /i�j\//��I PREPARATION O© 00 O0 00 O 00
0�
MAXIMUM PLACEMENT OF POST USING HOG WIRE WITH APPROVED EROSION ` ��������� 0p O Opp OVO IO Oooq�o O NOT TO SCALE
\� PREPARE SEEDBED BY RIPPING, CHISELING, HARROWING, TO A DEPTH OF AT O ap O�q 00�CPOgOp00 OOP Qo0 000
CONTROL FABRICS TO BE 10 FEET /\�/ \� , 4' EXCELSIOR MATTING 8' EXCELSIOR MATTING LEAST SIX INCHES SO AS TO PRODUCE A LOOSE, FRIABLE SURFACE. INCORPORATE 0 00 O8y 0 O�Op�oo�
/ �/ 00`�O Oo a 0 Oo $O O
MAXIMUM PLACEMENT OF POST WITHOUT HOG WIRE USING APPROVED EROSION STAPLE PATERN STAPLE PATERN 750-1,000 POUNDS 10-10-10 FERTILIZER AND UP TO TWO TONS OF DOLOMITIC LIME PER O g0 (g 00 O O O - O o0
CONTROL FABRICS TO BE 6 FEET TO 8 FEET APART 1 FOOT GRID 1 FOOT GRID ACRE (NOTE: LIME MAY NOT BE NEEDED IF A SOIL INDICATED A PH OF 6.5 OR 8" MIN. no 000 000 000g00 �06 010 -,Oo
0000 0 0000 00 O O 0 p0 0
POST METAL T-POST 5 FEET OR 6 FEET IN HEIGHT DEPENDING ON FILL TUTS NTs HIGHER). MULCHING IS REQUIRED ACCORDING TO THE SAME SPECIFICATIONS AS FOR OpOq o o aq�'o a a$o�oaoo cJq yoga SEDIMENT BASIN W/ SKIMMER OUTLET
SLOPE. PERMANENT SEEDING UNLESS WAIVED BY SOIL SCIENTIST. SELECT SEEDING MIXTURE AND O 00 'O 00 00 I OpOoov D--vo p0
BEST PLANTING DATES FROM TABLE 12. 0 OO �0 0000 q00 00 q00 O AND EMERGENCY SPILLWAY
FABRIC 36 INCHES IN WIDTH (MUST MEET ENGINEERS SPECIFICATIONS goq ° oa a �' oa otio
FOR EROSION CONTROL), NTS
STONE NO. 4 WASHED STONE TO BE PLACED 12 INCHES DEEP AT SILT TABLE 12 O� 0 000po Oo00 86 o o'oo o Z
oQaooa (q tea., a aoo o a oo C)
TEMPORARY SEEDINGS 2" TO 3' 00 0 APO a O g O 0 O O 000
O O 0 O
NOTE: FENCE. COARSE AGGREGATE QaoO�BQQ pjO oOQQo00C11C q 4 " ,
SEEDING MIXTURES SEEDING RATES (LB/ACRE) PLANTING DATES 000E 00- 000o000aoq O
RYE GRAIN AND 120 LBS. JAN. 1 - MAY 1 O o 0S O 00pOp 0 EMBANKMENTOf
STRUCTURAL STONE SHALL BE SILT FENCE WITH STONE OUTLET DETAIL
KOBE LESPEDEZA 50 LBS. GEO-TEX LINER O 000po8 Ov0 00 O U
(GLASS "B") STONE FOR EROSION GERMAN MILLET OR 40-50 LBS. MAY 1 - AUG. 15 q po �04 00 � W
SUDAN GRASS OHO
CONTROL PURPOSES. IN CHANNELS, ROLL OUT STRIPS OF NETTING PARALLEL TO THE RYE (GRAIN) 120 LBS. AUG. 15 - DEC. 30 €;,' 1zE§ p Opp _ _PERSE m
NOT TO SCALE DIRECTION OF FLOW AND OVER THE PROTECTIVE MULCH (MAY SUBSTITUTE OATS
SEDIMENT CONTROL STONE SHALL STAPLES MUST BE INSTALLED IN A 'DIAMOND PATTERN" NO MORE BEFORE OCT. 1 OR WHEAT p�
FROM OCT. 1-NON, 15) �d RISER
THAN 3 FEET APART. TO ASSURE PROPER ANCHORING OF BAFFLE (TYP.)
BE NO. 5 OR N0. 57 STONE. ANNUAL RYEGRASS 40 LBS. AUG. 15 - NON. 30 �� ' i 1. SKIMMER, SPILLWAY
EXCELSIOR MATTING DETAIL EXCELSIOR MATTING. LLJ
WEEPING LOVEGRASS' 5 LBS. MAY 1 - AUG. 15 FL INFLOW STRUCTURE �'IV�, 13EVCEERING f---
CLASS 1 OR 2 RIP-RAP EARTH eERM
WITH 6" OF WASHED STONE NOT TO SCALE � I� o
ON UPSTREAM FACE WEEEPING LOVEGRASS IS A PERENNIAL GRASS BUT IS INCLUDED HERE BECAUSE OF
WIRE FENCING 1 ITS ADAPTABILITY TO POOR SOIL CONDITIONS AND DROUGHTY SITES. BAFFLES
IF APPLICABLE) STEEL POST PLAN VIEW TO RE BLACK HOPE LINING Lil
GEO MEMBRANE (ASTM GM13 OR EQUAL)
TO BE EXTENDED TO LIMITS OF DISTURBED AREA
4' MAX.
EMBANKMENT
1.5' FREEBOARD
INFLOW STRUC RE (MIN.) ;F
BAFFLES - /i
WOVEN FILTER FABRIC \ I` 2.O' MIN. 8.0' peTwR� INLET ZONE 2' # \\ \
35%
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,.: b�C)p txjQ O O .• `.� . FIRST CHAMBER 25% .. T ,. �,' r... ,` .�./ , .. �_ -I Z
D O O O C7 SEDIMENT PIT \ r. \, / / \ I-+
O �Q (�(�p C{O�O 6 �0; .,. `, //\//\� .,. SEDIMENT STORAGE ZONE �., Q O
- Qp 8 000 ,0Q� i /�/\�/\\ FILTER FABRIC- F-
fl ` 0 oO �Od O S © ©Jp ;. �2:1 SLOPE / / / /r �'
\ \ \ \ \ \ \ \ \ \ \ o ,`��/ CROSS-SECTION t"�[ 4
? � \\��\/\ SECOND CHAMBER 25% LLI
x - / Y\iA/vi / /vvi /A/ /A/ v/v/ OR FLATTER oD./ 0 0 (m C)
/�///,///// \j A�AIAAVA/�\/AA \�Vl\V\ \�\ \ VA/A ` / / ,ti - - - O 0 D D CLASS #1 RIP RAP CONSTRUCTION SPECIFICATIONS ��
\<VA/ A�VA�A�VA/A /\j A \\/VA/A A /��\�/\�\/\�VA V{VA\j A A\VA/A\�\ \ O WITH IMPERV MEMBRANE J I
/i v/ //v/i 1v/v/ //v//�/v/v// ( 1 0 D 1. CLEAR, GRUB AND STRIP THE AREA UNDER THE EMBANKMENT OF ALL VEGETATION AND ROOT MAT. REMOVE ALL SURFACE SOIL CONTAINING HIGH AMOUNTS I"-'
\� V�VA�\�\/A VA \\A V \/A/� \ \/A/AA /A \/AA���\ /AA/AA/ A�/AA/� \� CLASS I RIP-RAPkif OF ORGANIC MATTER AND STOCKPILE OR DIPOSE OF IT PROPERLY. HAUL ALL OBJECTIONABLE MATERIAL TO THE DESIGNATED DISPOSAL AREA. PLACE Of
✓/.\/ / / 1�/ / /\/ / / /\� T\ \�"1 /i/,/ j/ D �OO 2:1 SLOPE OUTLET ZONE 15% Q
/`� \`\y\\\i\�� A�/ p QD OR FLATTER TEMPORARY SEDIMENT CONTROL MEASURES BELOW BASIN AS NEEDED.
/ //\/ii,/' I�f TO BE PROVIDED�/'�� D ^ �'� w O
tti D -D D 2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT 15 FREE OF ROOTS, FILL VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE MATERIAL PLACE � ( } z
/f\I WHERE INDICATED THE E T E LIFTS NOT TO EXCEED 9 AND MACHINE COMPACT IT. OVER FILL THE EMBANKMENT 6" TO ALLOW FOR SETTLEMENT. V �n
rti, ON PLANS "HOG WIRE ATTACHED 3. SHAPE THE BASIN TO THE SPECIFIED DIMENSIONS. PREVENT THE SKIMMING DEVICE FROM SETTLING INTO THE MUD BY EXCAVATING A SHALLOW PIT UNDER z (Vl L)
1- TO POSTS WITH LENGTHS THE SKIMMER OR PROVIDING A LOW SUPPORT UNDER THE SKIMMER OF STONE OR TIMBER. 0�-�y ��
OF WIRE 10 4.PLACE THE BARREL(TYPICALLY 4-INCH SCHEDULE 40 PVC PIPE) ON A FIRM, SMOOTH FOUNDATION OF IMPERVIOUS SOIL. DO NOT USE PERVIOUS:MATERIAL V
1' MIN. HORIZONTAL METAL POST SUCH AS SAND, GRAVEL OR CRUSHED STONE AS BACKFILL AROUND THE PIPE. PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY IN 4-INCH LAYERS (, Ir.�.
STEEL POST WIRED SECURELY TO VERTICAL TOP OF BAFFLE SHOULD BE 6" AND COMPACT IT UNDER AND AROUND HE PIPE TO A7 LEAST THE SAME DENSITY AS THE ADJACENT EMBANKMENT CARE MUST BE TAKEN NOT TO RAISE THE .-4.
TYPICAL BERM (INCLUDING CLEAN WATER) CROSS SECTION POSTS PIPE FROM THE FIRM CONTACT WITH ITS FOUNDATION WHEN COMPACTING UNDER THE PIPE HAUNCHES.
„} � �?e^ Aa „• I R; A BELOW THE TOP OF THE BERM PLACE A MINIMUM DEPTH OF 2 FEET OF COMPACTED BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WITH CONSTRUCTION EQUIPMENT. IN NO CASE 1 1m M J
a L .S` ,"'TP"S L.L I I 'N , y rT. i FENCE AND FABRIC SHOULD THE PIPE CONDUIT BE INSTALLED BY CUTTING A TRENCH THROUGH THE DAM AFTER THE EMBANKMENT IS COMPLETE. z H 1�1
I
BERM/SWALE NOT TO SCALE - BURIED IN TRENCH 5. ASSEMBLE THE SKIMMER FOLLOWING THE MANUFACTURERS INSTRUCTIONS, OR AS DESIGNED. <
6.LAY THE ASSEMBLED SKIMMER ON THE BOTTOM OF THE BASIN WITH THE FLEXIBLE JOING AT THE INLET OF THE BARREL PIPE. ATTACH THE FLEXIBLE JOINT
CLASS 1 OR 2 RIP-RAP Q/ NOTES: COtR BAFFLE ATTACHED TO TO THE BARREL PIPE AND POSITION THE SKIMMER OVER THE EXCAVATED PIT OR SUPPORT. BE SURE TO ATTACH A ROPE TO THE SKIMMER AND ANCHOR IT `-' {"�
o WASHED STONE 1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS AND OTHER OBJECTIONAL MATERIAL. 1. DRIVE 5' STEEL FENCE POST AT LEAST 24" INTO HOG WIRE VERTICALLY AND TO THE SIDE OF THE BASIN. THIS WILL BE USED TO PULL THE SKIMMER TO THE SIDE FO MAINTENANCE. V)
( 2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN REQUIREMENTS. SOLID GROUND HORIZONTALLY 7.EARTHEN SPILLWAYS- INSTALL THE SPILLWAY IN UNDISTURBED SOIL TO THE GREATES EXTENT POSSIBLE. THE ACHIEVEMENT OF PLANNED ELEVATIONS, GRADE, O W En ¢
f
NCDOT 5 OR 57 N WIDTH AN ENTRANCE AN EXIT CHANNEL 3. ENSURE THAT THE TOP OF THE DIKE IS NOT LOWER AT ANY POINT THAN THE DESIGN ELEVATION PLUS WITH MID D E NCE D E EL SLOPES ARE CRITICAL R THE ST ES WIDE OPERATION OF THE SPILLWAY. THE SPILLWAY SHOULD BE LINED
6"x6" TRENCH, � WITH LAMINATED PLASTIC OR IMPERMEABLE GEOTEXTILE FABRIC. THE GABRIC MUST BE WIDE AND LONG ENOUGH TO COVER THE BOTTOM AND SIDES AND (� Of
.. 0 THE SPECIFIED SETTLEMENT. 2. WOOD POSTS MUST BE 4" IN DIAMETER BACKFILLED AND EXTEND ONTO THE TOP OF THE DAM FOR ANCHORING IN A TRENCH. THE EDGES MAY BE SECURED WITH 8-INCH STAPLES OR PINS. THE FABRIC MUST BE i-14
Q ° Q " 4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE REGRADING AND CLEANOUT. LONG ENOUGH To EXTEND DOWN THE SLOPE AND EXIT ONTO STABLE GROUNDA THE WIDTH OF THE FABRIC MUST BE ONE PIECE, NOT JOINED OR SPLICED; LLJ D
N ° 5. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT WILL REMAIN IN PLACE LESS 3. USE STAPLES 1' APART TO ATTACH FABRIC COMPACTED 0 N OTHERWISE WATER CAN ET UNDER THE FABRIC. IF THE LENGTH OF THE FABRIC IS INSUFFICIENT FOR THE ENTIRE LENGTH OF THE SPILLWAY,MULTIPLE 0�
Q TO "HOG WIRE" SECTIONS, SPANNING THE COMPLETE WIDTH,MAY BE USED. THE UPER SECTION(S)SHOULD OVERLAP THE LOWER SECTION(S) SO THAT WATER CANNOT FLOW
p THAN 30 WORKING DAYS. T.X - - - y UNDER THE FABRIC. SECURE THE UPPER EDGE AND SIDES OF THE FABRIC N A TRENCH WITH STAPLES OR PINS. QQ
° FLOW � '"L�_ Ia \I I I;,w�;^�y -•- 8. INLETS- DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION. USE TEMPORARY SLOPE DRAINS OR DIVERSIONS WITH OUTLET PROTECTION
0 Q a 4. BAFFLE SPACED AS PER APPROVED PLAN. •---•••-••• S I'E TO THE
° MAINTENANCE 9. EROSION CONTROL-
CONSTRUCT THRE STRUCTURE UPPER
SOEND
THAT E DISTL AREA URBED AREO IMPROVE A IS MINIMIZED.N DIVERT AP FSURFACE WATER AWAY FROM BARE AREAS. COMPLETE
\ \\/\\/ ,I, "I" 01 ,1, THE EMBANKMENT BEFORE THE AREA IS CLEARED. STABILIZE THE EMERGENCY SPILLWAY EMBANKMENT AND ALL OTHER DISTURBED ARAS ABOVE THE CREST
j\/ / / / / / / / / \/\/\ \ INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY RAINVALL. IMMEDIATELY REMOVE a0a OF THE PRINCIPAL SPILLWAY IMMEDIATELY AFTER CONSTRUCTION.
//// /////////�i 10. INSTALL POROUS BAFFLES.
\\/\\\\\\\\\, \\.\\\\ SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE, CAREFULLY CHECK OUTLETS AND IT. AFTER ALL THE SEDIMENT-PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL THE UNSTABLE SEDIMENT. SMOOTH
j�i�j\�/�//\�/�/�/�//�//' MAKE TIMELY REPAIRS AS NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE AREA TO BLEND WITH HE ADJOINING AREAS AND STABILIZE PROPERLY.
�\` \/I, I ` THE RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY _
STABILIZE IT. - FLOW NOTE: THIS DEVVICE IS TYPICALLY USED 20' AWAY FROM PIPE OUTLETS. LATER TO BE
GENERAL NOTES: MAINTENANCE NOTES: SPREAD INTO A STONE APRON. TYPICALLY USED IN DITCH LINES TO SLOW WATER, MAINTENANCE
AT OUTLETS OF BASINS AND BERMS, ,,,,, 1, INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT(1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY.
1. SEDIMENT FILTER OUTLET SHALL BE 16 INCHES HIGH CLASS "A" EROSION ,,I,, sla Ji,• ,0, ' REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIFINAL DIMENSIONS WHEN SEDIMENT ACCUMULATES TO 1/2 THE HEIGHT OF THE FIRST BAFFLE. PULL THE
BUT NO TALLER THAN 18 INCHES. 1. FILTER OUTLETS SHALL BE INSPECTED BY THE FINANCIALLY
CONTROL STONE "`+...��NO. 4 WASHED STONE ,i, ,li ,tl, SKIMMER TO ONE SIDE SO THAT THE SEDIMENT UNDERNEATH IT CAN BE EXCAVATED. ESCAVATE THE SEDIMENT FROM THE ENTIRE BASIN,NOT JUST AROUND
RESPONSIBLE PARTY OR HIS AGENT IMMEDIATELY AFTER EACH NOTE- 6" THICC I,, J: PITCH 1I, THE SKIMMER OR THE FIRST CELL. MAKE SURE VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE SKIMMER.
2. CLASS 1 OR 2 RIP-RAP SHALL BE USED AND COVERED -- FLOW EXIST. - •�'`•
WITH 6 INCHES OF NCDOT #5 OR #57 WASHED STONE RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ( OF ,i REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE-ANCHOR THE BAFFLES IF WATTER IS FLOWING UNDERNEATH OR AROUND THEM.
No. 4 WASHED STONE
ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY. STEEPER GRADES ALONG BERM MAY REQUIRE VEGETATIVE OR ,%I:• --6" THICK DEPTH = TO IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING ON THE ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN
ON THE UPSLOPE SIDE. - FLOW JI6 AND DISLODGE THE DEBRIS AND RESTORE FLOW. IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF THE BASIN AND REMOVE THE DEBRIS.
3. POSTS SHALL BE NO MORE THAN 4 FEET APART. 2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY MECHANICAL STABILIZATION. EXCAVATED MATERIAL SHOULD BE CLASS
E OSI(e DITCH DEPTH ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED; IF SO,REMOVE THE DEBRIS.
EVENT THAT HAS CLOGGED OR REMOVED IT. PLACED AND COMPACTED ON LOWER SIDE OF DIVERSION AND FLOW
4. SITE OUTLETS AT ANY POINT SMALL CONCENTRATED .1. ,b, ,i IF THE SKIMMER ARM OR BARREL PIPE IS CLOGGED, THE ORIFICE CAN BE REMOVED AND THE OBSTRUCTION CLEARED WITHA PLUMBER'S SNAKE OR BY
FLOWS ARE ANTICIPATED AND AT THE DIRECTION OF 3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS SEEDED AS SOON AS POSSIBLE. TEMPORARY BERMS AND/OR ,t, ,,, .1. FLUSHING WITH WATER. BE SURE AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER.
REACH HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DIVERSIONS SHOULD BE SIZED TO HANDLE A 10-YEAR STORM. '' PLAN "BOOTTTOM OF DITCH ty 5-16-23 2:
WG
• THE INSPECTOR. / /' ELEVATION CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED REPAIRS WITH FABRIC THAT SPANS THE FULL WIDTH OF THE SPILLWAY. CHECK rJ-1f-2J' 2:00 PM
DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE BERMS WITH A DRAINAGE AREA OVER 5 ACRES SHOULD BE , ! THE EMBANKMENT,SPILLWAYS,AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ALL NECESSARY
REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE SKIMMER AND POOL AREAS.
5. ONE ACRE MAXIMUM DRAINAGE AREA PER OUTLET. OUTLET IS REMOVED SHALL BE DRESSED TO CONFORM TO THE CALCULATED INDIVIDUALLY. DETAIL - EROSION CONTROL STONE CHECK DAM FREEZING WEATHER CAN RESULT N ICE FORMING N THE BASIN. SOME SPECIAL PRECAUTIONS SHOULD BE TAKEN IN THE WINTER TO PREVENT THE SKIMMER
EXISTING GRADE, PREPARED AND SEEDED. NOT TO SCALE FROM PLUGGING WITH ICE,
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