20170130 Ver 1_More Info Received - Email_20170310

Homewood, Sue
From: Homewood, Sue
Sent: Friday, March 10, 2017 8:35 AM
To: 'Chris Hopper'
Subject: RE: Davidson I-85 Business Park Sewer
Chris,
This satisfies questions#4, 5 and 6 of my letter dated March 9, 2017
Thanks,
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
336 776 9693 office
336 813 1863 mobile
[e-mail]
450 W. Hanes Mill Rd, Suite 300
Winston Salem NC 27105
. n.t
nreil corre,spo fence to amY from this a�Y�Yre,s,s is,subiect to the
Neill? Carolina Public ReconYs Law amY n7ay be �Yiscle,se�Y to thinY pailie,s.
From: Chris Hopper [mailto:[e-mail]]
Sent:Thursday, March 09, 2017 3:07 PM
To: Homewood, Sue <[e-mail]>
Cc: 'Jean B CIV USARMYCESAW (US) Gibby' <[e-mail]>
Subject: RE: Davidson I-85 Business Park Sewer
Sue/Jean:
Attached is page 35 from the plan set. Sue only had 34 pages, so in the event the USACE's copy did too, I'm sending to you both.
Regards,
Chris
Chris Hopper
CAIIIkOil.,'VII: A
[phone]
www.carolinaeco.com
From: Chris Hopper [mai_Ito:chris.hop_p_er@raro_Iina_ero_com]
Sent:Thursday, March 9, 2017 10:45 AM
To: 'Homewood, Sue' <sue.homewood@nc_denrgov>
.............................................................................
i

[c: 1eanB [|VUS4RMY[ES4VV /U6\ Gibb/
Subject RE: Davidson 1-85 Business Park Sewer
Thank you, Sue:
Would you have a few minutes to discuss our suggested resolutions today? I've attached a photo ofS1Oto inform that portion of
our discussion.
Thanks again!
Chris
Chris Hopper
CAIR.01,1INA, ���K������������.
[phone]
Frum: Homewood, Sue [ ]
Sent:Thursday, March 9' 20I78:334M
To: Chris Hopper< >
Cc:Jean B [|VUS4RMY[ES4VV /US\ Gibby< >
Subject: Davidson 1'85 Business Park Sewer
Please see the attached request for more information.
Thanks'
Sue Homewood
Division of Water Resources, Winston Salem Regional Office
Department of Environmental Quality
3367769693 office
3368131863 mobile
45OVV. Hanes Mill Rd, Suite 3OO
Winston So|enn INIC271O5
En/eilooweapondenoe /oend from this ecY�Yreoo/soub/eo//othe
Goilh Carolina Public F9eoonYs Law endo/eybe �Yiso/ooed/obhindpeilieo,
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PIPE OUTLET TO FLAT AREA - THE SCALE BAR SHOWN BELOW �..�������••.,
MEASURES ONE INCH LONG ON
CLASS I OR B NO WELL-DEFINED CHANNEL THE ORIGINAL DRAWING. �'v �6'.,0
EROSION CONTROL x ti O �Q (.0 d� O-
0 O O\O\ VARIES (SEE PLAN) GENERAL REQUIREMENTS:
STONE o ojo o a~ OO�O�O�O 2' MIN. Q v, Q z Q
o 0 0 o s j ado A A THE WORK INCLUDES SEEDBED PREPARATION, LIMING, FERTILIZING, SEEDING, AND MULCHING OF THE UTILITIES 0 N LL1 �
� � w O O O O NOTE: Z G
0 0 0 0 0 0 0 �
00000000000000c� POST STRIP AND ALL DISTURBED AREAS. � �o �1 2
0 0 0 0 0 0 0 0 0 :y
DODO A STRUCTURAL STONE SHALL BE 000' o000000000000 0 o MATERIALS: 0 y-
0 0 0 0 0 0 0 0 0 0 0 00 00 o°Oo°Oo°Oo°Oo°co°co co �� �
O O O O CLASS "B" STONE FOR EROSION o0g, 000000000000000 000o A. LIME SHALL BE DOLOMITIC AGRICULTURAL GROUND LIMESTONE CONTAINING NOT LESS THAN TEN �, O
CONTROL PURPOSES. SILT-FENCE o 0 0 0 0 0 0 0 0 0 0 o SILT-FENCE PERCENT MAGNESIUM OXIDE. MIX INTO SOIL A MINIMUM OF 4" DEPTH. �����,',••�������`�.`��,
FILTER FABRIC PLAN SEDIMENT CONTROL STONE SHALL BE B. FERTILIZER SHALL BE COMMERCIAL PRODUCE OF 10-10-10 ANALYSIS. ALL FERTILIZER SHALL BE
CROSS SECTION No. 5 OR No. 57 STONE. DELIVERED IN BAGS BEARING THE MANUFACTURER'S NAME, THE CHEMICAL ANALYSIS OF THE PROJECT,
La AND THE WEIGHT. IF NOT USED IMMEDIATELY AFTER DELIVERY, THE FERTILIZER SHALL BE STORED IN A ,n
1.5 ft. MANNER WHICH WILL NOT ALLOW IT TO HARDEN OR DESTROY ITS EFFECTIVENESS. MIX INTO SOIL A v
N
min. - _ TOP VIEW MINIMUM OF 4" DEPTH. o�
WM,=III=1
=TIKJ_71=11M-,fd:T T�I„„lii lil C. GRASS SEED SHALL BE AN APPROVED MIXTURE BASED ON REGIONAL AND SEASONAL CONSIDERATIONS. Lu
o O o O O O o i1111,,111=iTI,ITi„,II,,il,,u = _,,SILT PURITY OF SEED SHALL BE A MINIMUM OF NINETY PERCENT AND THE GERMINATION SHALL BE A z
0 0 0 0 0 9" min o 0 0 o SECTION A-A FILTER NOTES MINIMUM OF EIGHTY-FIVE PERCENT. THE SEED LABEL SHALL BE A "CERTIFIED SEED" LABEL. ui
O O O O o O O O O O O BLANKET SILT-FENCE SILT-FENCE D. MULCH SHALL CONSIST OF DRY, SMALL GRAIN STRAW, DRY HAY, AND OTHER SUIT- ABLE AND J
1. La IS THE LENGTH OF RIPRAP 1.5 FT.
0 0 0 0 0 0 0 0 0 0 0 0 PIPE OUTLET TO WELL-DEFINED APRON MIN. APPROVED MATERIAL. 2E
FILTER FABRIC O O O O O O o O 2. d=1.5 TIMES THE MAXIMUM z, 2 °° o°° PREPARATION OF SEEDBED:
CHANNEL STONE DIAMETER BUT NOT LESS A FLOuy 1.0 FT. 1 0°0 0°2 a °
O O O O _ oO°Oo°Oo° o°°Oo°Oo°Oo° o 00o Oo Oo Oo Oo O°o0o 0
THAN 6". o°o°o°o o°o°o°o°o°o M pp�o�o�p�p�o�o THE SURFACE SHALL BE MADE SMOOTH AND TRUE TO GRADE. THE AREAS SHALL BE PREPARED BY MEANS OF v
po po pop po po po opo o°O ° ao°o°o°o°o°o°o° Z
�0�0000� 3. IN AWELL-DEFINED CHANNEL o000000 00 � DISKING TO A MINIMUM DEPTH OF FOUR INCHES. DISKING AND CROSS-DISKING, HARROWING, OR OTHEREXTEND THE -
000000 CHANNEL BANKS APRON0 AN ON THE SEDIMENT CONTROL STONE STRUCTURAL STONE 1.5 FT. APPROVED METHODS OF PRE- PARATION SHALL BE CONTINUED UNTIL A FRIABLE AND THOROUGHLY PULVERIZED a-
STONE SECTION O O 0o ELEVATION OF 6" ABOVE THE MIN. FOUR-INCH DEEP SEEDBED IS OBTAINED. CARE SHALL BE EXERCISED IN PRE- PARATION OF SEEDBEDS ON N o
A ������� A TOXTOPMPF THE BANK TALLWATER , STONE
OR #57 WASHED CLASS P SEEDBEDSLOPES TSHALLPBE APPROVEDSE SOIL I PRIORCTORATHER THAN PERMIT PLANTING THE SEED IPR OR TO THE ACCUMULATE
LASTATILLAGE FOOT
OPERATIONTHE MOPE.
STONE RIP-RAP
WHICHEVER IS LESS. CROSS SECTION FRONT VIEW AND FERTILIZER SHALL BE BROADCAST WITH AN APPROVED SPREADER OVER THE SEEDBED IN ACCORDANCE
0000000 4. A FILTER BLANKET OR FILTER WITH THE APPROPRIATE SCHEDULE. O
TEMPORARY ROCK CHECK DAM 000 FABRIC SHOULD BE INSTALLED L00
o
O�O�O BETWEEN THE RIP-RAP AND �a SEEDING:
NOTE: TO BE INSTALLED IN CHANNEL DURING 00 0000 SOIL FOUNDATION. -"y - AFTER THE SEEDBEDS HAVE BEEN PREPARED AND APPROVED BY THE ENGINEER, THE MIX- TURE OF GRASS �
CULVERT
INSTALLATION.
PIPUTILEZE
PIPE OUTLET
PLAN ODOo0o0 5. DIMENSIONS AS - SEED, AS SPECIFIED, SHALL BE SOWED BY MEANS OF AN APPROVED SEEDER AT THE APPROPRIATE RATE, THE W 00
IS O O INDICATED ON PLANS
STABILIZATION. ' PIPE TEMPORARY STONE OUTLET SEED
ULTIPA EDE INTO
ROLLER OR SOIL
OTHOER APPDEPTH
OF APPROEQUIPMXIMATELY 1/2 INCH AND THEN COMPACTED BY MEANS OF O NT. > CO
M
La I N.T.S. ESTABLISHING PERMANENT VEGETATION:
CONSTRUCTION 1. Place stone to the lines and dimensions shown in the plan on a filter fabric THE PERMANENT SEEDING OF DENUDED AREAS SHALL BE PERFORMED WITHIN 15 WORKING DAYS AFTER FINAL N
SPECIFICATIONS foundation. GRADE IS REACHED AND SHALL BE IN ACCORDANCE WITH THE PREVIOUS SPECIFICATIONS AND THE FOLLOWING = �
=iu-ui =Trlil�iduriil-Tr APPROPRIATE PERMANENT SEEDING SCHEDULE. F-� co
2. Keep the center stone section at least 9 inches below natrual ground level -ITI=�II-T�-IiI-IT-_-_ _ - - 00
=Ti=II-i1-li1=ul=1I1=
where the dam abuts the channel banks. 1I=If-�i�-uI-TI=ITi=ITI=I SECTION AA ITI-TI-ITi-II== ==ITi=lil= = PERMANENT SEEDING SCHEDULE - PIEDMONT REGION:
FILTER PLAN �� Cl)
3. Extend stone at least 1.5 ft beyond the ditch banks to keep overflow water BLANKET 1. DRIVE STEEL POST 24" INTO GROUND AND EXCAVATE A 6" X 6" TRENCH PLANTS & MIXTURES PLANTING RATES
UPHILL ALONG THE LINE OF POSTS. MAX. 8' BETWEEN POSTS. PLANTING DATE �'�I
from undercutting the dam as it re-enters the channel. � -
#57 WASHED 2. ATTACH WIRE FENCE TO POSTS AND EXTEND THE BOTTOM OF THE TALL FESCUE 100 Ibs/ac Aug 15 - Sept. 15 or
4. Set spacing between dams to assure that the elevation at the top of the lower ROCK PIPE OUTLET PROTECTION STONE L_�� CLASS 'B' FENCE 6" INTO THE EXCAVATED TRENCH. SERICEA LESPEDEZA 30 Ibs/ac Feb 15 - Mar. 21 0
dam is the same as the toe elevation of the upper dam. N.T.S. 1 RIP-RAP KOBE LESPEDEZA 10 Ibs ac N
3. ATTACH THE FABRIC TO THE WIRE FENCE AND EXTEND THE / �1
5. Protect the channel downstream from the lowest check dam, considering that �`i e
BOTTOM OF THE FABRIC 6" INTO THE TRENCH. 10-10-10 FERTILIZER 1,000 Ibs/ac z
water will flow over and around the dam. o 4. BACKFILL THE TRENCH AND COMPACT THE SOIL FIRMLY TO ANCHOR LIMESTONE 4,000 Ibs/ac �=
RIP-RAP PLACED N �'� c z
6. Make sure that the channel reach above the most upstream dam is stable. `1%' THE BOTTOM OF THE SILT FENCE SO THAT RUNOFF IS FORCED TO
p #57 FILTER AROUND PIPE INLET Q 1 ,C PIPE GO THRU THE FENCE AND CANNOT GO UNDER IT. IN EASTERN PIEDMONT, ADD 25 Ibs/ac PENSACOLA BAHIAGRASS OR 10 Ibs/ac W a-
CLASS "B" FILTER STONE COMMON BERMUDAGRASS. LU 0
7. Ensure that the channel appurtenances, such as culvert entrances below check STONE 3 MIN ---- AFTER AUGUST 15, USE UNSCARIFIED SERICEA SEED. _
dams, are not subject to damage or blockage from displaced stones. 12" THICK �---{ `n
I I RIP RAP 12' 2' MIN. (n Z o
MAINTENANCE Inspect check dams and channels for damage after each runoff event. IRE ENCE MULCHING: o'
O STEEL POST ICI
goo Oo°0 00° SECTION i (REQ'D W/BURLAP ONLY) MULCH SHALL BE SMALL GRAIN STRAW APPLIED AT THE RATE OF 1.5 TONS PER ACRE (APPROX 60 BALES) TO z
Anticipate submergence and deposition above the check dam and erosion from z g PIPE LLJ O I4' MIND ALL SEEDED AREAS. MULCH SHALL BE APPLIED UNIFORMLY WITHOUT CLUMPS OR BUNCHES OF MATERIAL. Q
high flows around the edges of the dam. Correct all damage immediately. If g0 O Ld °00°0� PIPE Temp. Forebay/Sediment X Z JERFABRIC MULCH SHALL BE APPLIED IMMEDIATLEY AFTER SEEDING AND PREFERABLY ON THE SAME WORKING DAY THAT m
significant erosion occurs between dams, install a protective rip rap liner in that O 0 0 %% 0 DO Storage Area (NO WIRE FENCE REQ'D) THE SELECTED AREA IS SEEDED. ANCHOR STRAW BY TACKING WITH ASPHALT, ROVING, OR NETTING BY o
portion of the channel. W lgO�g� \%'' Q 00 00 CRIMPING WITH A MULCH ANCHORING TOOL. ON STEEP SLOPES, USE A DULL HARROW SET SO IT WILL NOT Z O
Z 0 MAINTENANCE: o o !r2
g Ogg 080 I I BACKFILL TRENCH WITH SOIL COVER THE MULCH.
Remove sediment accumulated behind the dams as needed to prevent damage O %' O° d MATERIAL AND TAMPING OR W v
, ,,\\ INSPECT OUTLET PROTECTION WEEKLY AND AFTER 1/2' OR GREATER RAINFALL. REMOVE ° �
to channel vegetation, allow the channel to drain through the stone check dam, �,,,� ,\��„� -= '` ° , °WASHED STONE TO 6" ABOVE MAINTENANCE AND RESEEDING:
and prevent large flows from carrying sediment over the dam. Add stones to ' " SEDIMENT AND RESTORE TO ORIGINAL DIMENSIONS WHEN SEDIMENT REACHES 1/2 DESIGN
p g agn g ° ° GROUND. THE CONTRACTOR SHALL MAINTAIN ALL SEEDED AREAS, UNTIL ACCEPTANCE OF THE WORK BY WATERING,
dam as needed to maintain design height and cross section. DEPTH. � o � � m o Q
SECTION PLAN ° ° �� MOWING, AND WEEDING. ANY AREAS WHICH FAIL TO SHOW A SATISFACTORY STAND FOR ANY REASON Q w
REPLACE CONTAMINATED GRAVEL FACING AND RESTORE STONES DISLODGED OR o WHATSOEVER, SHALL BE RETREATED FOLLOWING THE GRASSING PROCEDURE SPECIFIED HEREIN. DAMAGE o c� ~o z
DISPLACED. O %` RESULTING FROM EROSION, GULLIES, WASHOUTS, OR OTHER CAUSES PRIOR TO ACCEPTANCE SHALL BE z z
BACKFILL SEDIMENT STORAGE AREA & SEED ON FINAL CLEANOUT (AFTER SITE IS 1 REPAIRED BY REFILLING WITH TOPSOIL, AND RETREATED FOLLOWING THE GRASSING PROCEDURE SPECIFIED Q co
IF FLOW IS PRESENT DURING SEWER LINE RIP-RAP DONUT INLET PROTECTION STABILIZED). N HEREIN. Q
INSTALLATION, TEMP. BYPASS PUMP TO N.T.S. v �w o
ROCK PIPE INLET PROTECTION WITH SEDIMENT STORAGE ESTABLISHING PERMANENT VEGATATION - z z ULI
BE INSTALLED BY CONTRACTOR. NTS � Ui U J
WATER LEVEL TO BE MAINTAINED MIN. o �n a w Q o'
24" BELOW TOP OF SANDBAGS. COMPACTED TEMPORARY SILT FENCE PIEDMONT REGION
SOIL 2' MIN. N.T.S. a_ Q w � U U O
D- 0 � 0 U (n (n
FLOWS FROM WORK AREA
SHALL BE PUMPED INTO }
m
_ 10'x10' DEWATERING BASINS F= TEMPORARY SEEDING SPECIFICATIONS
W/STABLE OUTLET © 2:1 0 a o ; o o e°° 18" MIN.
2.
SIDE SLOPE or SILT BAGS \ %�� \\� \ � \\�\\ \ \\\\\ \i\ \�
O iv�Ovvv; ;, i PIEDMONT REGION z
---� 6' TYP Application Rates (lb/ac)
���.����� TOP OF BANK
VAA/AAA/AAA VA/AAA/AAA/ / Recommended
Species 10-10-10 A g r i cu I u ra I Straw
Seeding Dates Seed Fertilizer Limestone w
CONSTRUCTION SPECIFICATIONS %�jAAj AAjAA /AAj� A /AAj
AD O O O O 1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS, AND OTHER //� AAA/ VO /AA � Jan. 1 May 1 Rye (grain) 120 750 2,000 4,000**
O O O M I ` O O OBJECTIONAL MATERIAL. \\\/\\\// /\� Annual Lespedeza 50
2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN /////// �� J. / /
REQUIREMENTS. _ /AAy� 5. Kobe
STREAM 3 DESIGN ELEVATION PLLUSENSURE THAT THE TOP OTHEHE DIKE IS SPEECIFIED SET TL MENR AT ANY POINT THAN THE T. //�A/VAA� 6 �� - * 750 4 000** Q
4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE AVAj� �� May 1 Aug 15 German Millet 40 2,000 o
O O O O REGRADING AND CLEANOUT. ��jAAAj AAi
EROSION STONE 5. SOD THE CHANNEL TO PREVENT SEDIMENT FROM ENTERING THE CLEAN WATER j\\\/ 1 ___ j\\\ 7 Aug 15 - Dec 30 Rye (grain) 120 1,000 2,000 4,000** - N
DIVERSION. /Vr // - V//\i - - - LENGTH = 2 TIMES WIDTH o 0 0
`. .' �yVAjA VA/AA �pOo Oo Oo° O
PROP. - i--i TOP OF BANK MAINTENANCE \\//\\//\\ \ //\\/ - - - - o 0 0 o a * a small stemmed Sudangrass may MAINTENANCE: Refertilize if growth is not (10
SEWER J---1 INSPECT DIVERSION ONCE A WEEK AND AFTER EVERY RAINFALL. IMMEDIATELY //\///\ ///\// o 0 0 0 0 0 OHO be substituted at a rate of 50 Ib ac. full adequate. Reseed, refertilize and mulch
PIPE \�� 1' THICK 4 REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. \�\\//�\\///\\\///\ \///\\\�\ 1 o 0 0 0 do o°"�O / immediately following erosion or other damage. z
# CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED. WHEN THE - / /\ \\/\\/ FLOW - o 0 0 0 C Topdress with 50 lb/acre of nitrogen in March.
WASHED STONE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE RIDGE AND THE // // // // / w �00 0 00 0 ** W
CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY 8. \' /\\\/\\\/\\\/\\/\\/\\\/\\\/\� \\ \ o 0 0 0 �o netting, oroa straw
hbanchorling tool.asphalt, If it is necessary to extend temporary ry cover beyond
STABILIZE IT. /�� VVAjAV ��� //�/� 4• �0 0 0 0 �0 00 0 disk with blades set nearly straight can June 15, overseed with 50 lb/acre acre Kobe les edeza
�77O Y 9 in late February or early March. w
o o 00 000 �0 be used as a mulch anchoringtool. w
SANDBAGS LIMITS
AS SHOWNOONTPLANION CLEAN WATER DIVERSION �/
N.T.S.
U_ �
PLAN 12" N.C.D.O.T. #57 SEQUENCE of CONSTRUCTION 0-
/ 1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING APPLICATION OF LIME, Washed Stone "CLASS A" RIP-RAP � 0
POLYETHYLENE FABRIC TOP OF BANK ° FERTILIZER, AND SEED. ° 1. Obtain grading permit at pre-construction meeting on site. w - J
2 BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE BLANKET/N A 6" DEEP o Oo° A 2. Install stabilized construction entrance
ON FACE (8 MIL. THICK) / 0 / -
� X 6" W/DE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. o � � '� mud romp at all construction entrances. � Q
o�i5 U(_j - 3. ROLL CENTER BLANKET/N D/RECT/ON OF WATER FLOW ON BOTTOM OF CHANNEL. FLOW oCnon OoO�O�O - 3. Clear site enough to install erosion control devices. W
z QQ O O O O O O O O O O �uo
r JJO�O�O� 4. PLACE BLANKETS END OVER END (SHINGLE STYLE) W/TH A 6" OVERLAP. USE A 4. Install sediment and erosion control devices.
i DOUBLE ROW OF STAGGERED STAPLES 4" APART TO SECURE BLANKETS. Of < w
O O O O O O O O O O O 4 O O O °�,, 0 �h1 5. FULL LENGTH EDGE OF BLANKETS AT TOP OF S/DE SLOPES MUST BE ANCHORED5. Clear and grade site. �l Q
STREAM r1�0/ 000000000 10
Q /N 6" DEEP X 6" W/DE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER I 6. Install drainage system. O 0-
LLJ
FLOW cv I TEMP. RCP PIPE J o O o O O O
a J o 0 0 0 0 0 o U STAPLING. w 7. Protect all drainage structures.
0 0 0 0 a o 0 0 i g 0- J
6. BLANKETS ON SIDE SLOPES MUST BE 0VERLAFRED 4' OVER THE CENTER BLANKET _ _ _ _ 8. Maintain and clean erosion control facilities throughout° � o ° ��o O O O O
duration of project. (�
,n V CI M N" / n f�n�n��O AND STAPLED (2" FOR CJ50 MATTING). L - - - J g �'
7. IN HIGH FLOW CHANNEL APPLICATIONS, A STAPLE CHECK SLOT IS RECOMMENDED
PROP. 9. Seed site.
EX. INV. TEMPORARY 6' min ��` J ��U�C' - AT 3O TO 40 FOOT INTERVALS. USE A ROW OF STAPLES 4" APART OVER EN77RE (� w
10. After all areas have been stabilized, remove all SEWER depth �! ��D�d�( ° WIDTH OF THE CHANNEL. PLACE A SECOND ROW 4" BELOW THE FIRST ROW IN A EXCAVATED STORAGE tem z < Z
CREEK 10' IN. PIPE STONE DAM �� o
� < § �-,�� o STAGGERED PATTERN. porary erosion control devices.
c� 2-3 o -� 4 8. THE TERMINAL END OF THE BLANKETS MUST BE ANCHORED /N A 6" DEEP X 6" WIDE N.T.S. (n O
SANDBAGS coarse aggregate °° ° TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. z
I SYNTHETIC FILTER SECTION A-A REFER TO DITCH LINING SCHEDULES ON INDEX SHEET z m Q U
w FABRIC GENERAL MAINTENANCE PROVISIONS z
Washing - If conditions at the site are such that most of the mud and sediment NORTH AMERICAN GREEN O L0
Inspect temporary erosion control devices after each period U 1 O
w are not removed by vehicles traveling over the gravel, the tires should be TEMPORARY DITCH LINING of significant rainfall. Check devices for rills, erosion, or 1 -
M CROSSING NUMBER PIPE SIZE PIPE LENGTH washed. Washing should be done on an area stabilized with crushed stone that g - CV W
1 15" 35 LF drains into a sediment trap or other suitable disposal area. A wash rack may also INSTALLATION GUIDE piping. All areas should be stabilized within 15 working days z O
1 be used to make washing more convenient and effective. after construction in that area. Denuded areas shall not exceed Q
�, 2 21" 15 LF N. T S VARIES
3 15" 40 LF 1000 linear feet without seeding and stabilization. All areas (�
05 Of
7 4 15" 34 LF Construction - LU
° EXIST. CHANNEL SLOPE °O damaged prior to establishing permanent stabilization shall be
0 5 15" 33 LF Specifications 1. Clear the entrance and exit area of all vegetation, roots, and other objec- ° immediately re-established. -
I tionable material and properly grade it. o O
BORE PIT � EXIST. CREEK WIDTH Additionally, the following items shall be performed in Q
z PROPOSED O 'ram �� o O accordance with the specific construction details on this
NO TES.- 2. Place the gravel to the specific grade and dimensions shown on the plans, and Q U
�`'I ENCASEMENT sheet:
smooth it. PIPE Oc40° �3 Oo°O�Oo°O Q
F0 1 EROSION STONE TO BE "CLASS II" RIP-RAP d 18" UNLESS DESIGNATED 6" #57 STONE OR 1. Sediment basins and inlet protection devices shall be
50- 3. Provide drainage to carry water to a sedment trap or other suitable outlet. FILTER FABRIC cleaned when sediment has accumulated to one-half of the
� DIFFERENTLY ON PLAN. � I EXIST. CREEK design depth of the device. The sediment shall be laced
2 KEY SANDBAGS & FILTER FABRIC INTO CREEKBANKS AND INVERTS WHEN 4. Use eotextile fabrics because the improve stability of the foundation in J BOTTOM SURFACE RIP-RAP LINING, 9 P P
U ) g y P y I SOIL CLASS B, UNLESS in the disposal area or applied to the land area. Any Z
POSSIBLE SANDBAGS TO BE MIN. 24" ABOVE WATER LEVEL. locations subject to seepage or high water table. OTHERWISE INDICATED
u, „ STOCKPILE ON PLAN gravel facings contaminated by the sediment shall be replaced O
0 3) SANDBAGS, POLYETHYLENE, & TEMPORARY CMP MAY BE DELETED ON DRAINAGE AREA CONSTRucnON NOTE with clean gravel. U
0 DITCHES, WITHOUT ACTIVE FLOW, AS DIRECTED BY ENGINEER. CONTRACTOR SHALL INSTALL SEWER LINE DURING DRY
WEATHER ONLY. RIP-RAP LINING SHALL BE INSTALLED 2. Rip-rap, silt fence, and earth berm diversions Shall be
i 4) CONVERT TO PERMANENT CHANNEL STABILIZATION AFTER UTILITY LINE IS Maintenance Maintain the ravel ad in a condition t0 prevent mud or sediment from leav- IMMEDIATELY FOLLOWING PLACEMENT OF LINE. RIP-RAP
g P P SHEET N0.
INSTALLED. EDGE OF STONE AND PLACEMENT DEPTH SHALL N OF SIZE INDICATED inspected for erosion, displacement, breaks, overruns, and
o ing the construction site. This may requuire periodic topdressing with 2-inch ON PLAN SHEET AT LOCATION OF CHANNEL CROSSING.
cam, PAVEMENT excessive sedimentation. These damages shall be repaired
� 5) BACKFILL OVER PIPE TO BE OF NON-ERODIBLE MATERIAL (ROCK OR STONE). stone. After each rainfall, inspect any structure used to trap sediment and clean SF - sF by returning the device to its design condition.
04
d: it out as necessary. Immediately remove all objectionable materials spilled, CHECK DAM
washed, or tracked onto public roadways. 3. Seeded areas eroded prior to permanent stablization shall 3 5
Li:iTEMPORARY CULVERT TYPE AT NATURAL RIP-RAP DITCH LINING be regraded as necessary, reseeded and mulched until a
z STREAM CROSSING DRAINAGE OUTLET N.T.S.
suitable surface is achieved.
z
TEMPORARY CONSTRUCTION ENTRANCE BORE SITE DETAIL
a N.T.S. N.T.S. OF
0