HomeMy WebLinkAbout20170785 Ver 2_2019-03-29_Cross Charlotte Trail - EC-20 Briar CreekTemp Crossing_11x17_20190409CONSTRUC�ON SEO�ENCE
5' MAX. STREAM CHANNEL t. coNsrRucr �MaoRARr oivERSioN oR sEr-uP
,I BANK HEIGHT PUMP AROUND PER THE �ETAIL ON.
IRI � IVI� �I Itrl'iIi / �I 2. EXCAVATE APPROACH SEC�ONS.
IV� 3. BEGIN E%CAVATION OF THE CHANNEL TO
__ —, � � i6 �. , � �I��Y I " � ,.I, SURFACE FLOW
� _` ` � � / IV4II�II i, ��y DIVERSION INSiALL THE FILTER FABFIG AND STONE BASE.
��_� \ � /� �li�i �" � 4. REPLACE ANV STABILIZING MATERIAL THAT IS
�° � '�' � �, yI WASHED OUT DURING STORM FLOWS.
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5:1 MAX. SLOPE ON ROAD
STONE OVER
- FILTER FABRIC
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SURFACE FLO
DNERSI ON
ORIGINAL STREAMBANK�`
'-\\ // �
GRADATION OF 2"-6" RIP ���
RAP WITH 1" OF //57 STONE ` - - - _ _ _ - - - - - - -��TYPE 1 (4oz) FILTER FABRIC
AS TOP LAYER TO FILL VOIDS
iN Ria Rna SECTION
TEMPORARY STREAM CROSSING/FORD
NOT TO SC/i.0
STREAM CHANNEL BRIDGE MAT
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�� SURFACE FLOW
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NOTES:
1. CONSTRUCT STREAM CROSSING WHEN FLOW IS AT NORMAL
BASEFLOW.
2. MINIMIZE CLEARING AN� EXCAVATION OF STREAMBANKS. 00
NOT EXCAVATE CHANNEL BOTTOM.
3. INSTALL STREAM CROSSING PERPENDICULAR TO THE FLOW.
4. MAINTAIN CROSSING 50 THAT RUNOFF IN THE CONSlRl1CTI0N
ROAD DOES NOT ENTER EXISTING CHANNEL.
5. STABILIZE AN ACCE55 RAMP OF CLA55 B STONE TO THE
EDGE OF THE MUD MAT.
6. CONTRACTOR SHALL DETERMINE AN APPROPRIATE RAMP
ANGLE ACCORDING TO THE EQUIPMENT UTILIZED.
TEMPORARY STREAM CROSSING - MUD MAT ON SIDE CHANNELS
NOT TO SCA�E
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� � NOTES:
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a� � 1. CONSIRUCT STREAM CROSSING WHEN FLOW IS AT NORMAL
BASEFLOW.
U� 2. MINIMIZE CLEARING AND EXCAVAPON OF STREAMBANKS. DO
NOT E%CAVATE CHANNEL BOTTOM.
�.`�� 3. INSTALL STREAM CROSSING PERPEN�ICULAR TO THE FLOW.
Y 4. MAINTAIN CROSSING SO THAT RUNOFF IN hIE CONSTRUCTION
� ROAD DOES NOT ENTER EXISTING CHANNEL.
E�, 5. STABILIZE AN ACCESS RAMP OF CLASS B STONE TO THE
EDGE OF THE MUD MAT.
6. CONTRACTOR SHALL DETERMINE AN APPROPRIATE RAMP
� E ANGLE ACCORDING TO THE EQUIPMENT UTILIZED.
°$ TEMPORARY DEEP STREAM CROSSING - MUD MAT ON LITTLE SUGAR
� € NOT TO SCALF
SOIL STABILIZATION TIMEFRAMES
SITE DESCRIPTION STABILIZATION TIME TIMEFRAME EXCEP IIONS
PERIMLTEI� DIKES, SWALES, DITCHES AND SLOPLS 7 DAYS NONE
HIGH QUALITY WATER (HQW) ZONES 7 DAYS NONE
SLOPES STEEPER THAN 3:1 7 DAYS IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE
NOT STEEPER THAN 2:1, 14 DAYS ARE ALLOWED.
SLOPES 3:1 OR FLATTER 14 DAYS 7 DAYS FOR SLOPES GREATER THAN 50'IN
LENGTH.
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1 14 DAYS NONE, EXCEPT FOR PERIMETERS AND HQW ZONES-
PERMANENT SEEDING - RIPARIAN SEED MIX
(USE UNDER COIR MATTING)
COMMON NAME BOTANICAL NAME PERCENTAGE
RE9TOP PANIC GRASS (NC ECOTYPE) P' 'gidulum 2a
CAMPER LITiLE BLUE SiEM S h' hyr' m xoporium ZQ
LANCE-LEAVED COREOPSIS (NC ECOTVPE) Goreopsis londceoloto I 10
BLACK-EYED SUSAN (NC ECOTWE) R�dbeckia hirta ��
PARTRIDGE PEA Ghamaecr'sta (oxicu/ota I 5
BEAKED PANIGGRA55 (MD EGOiYPE) Panicum onceps I 5
41VER OATS (WV ECO�YPF) Chosmanthium IoHfolum 3
DEER TONGUE Oichanthelium clandestinum I 3
VIRGINIA WILD RYE £lymus hginicus 3
COMMON SNEEZEWEED (VA EGOttPE) Helenium outumnole I 3
SWAMP SUNFLOWER (NC ECOttP€) Helionfhus ongust�folius I 3
WIL� OUININE (VA ECOTYPE) Porthenium integrifol�um 3
APPALACHIAN BEARDTONGUE (SC ECOTWE) Pensteman laevigatus 3
PURPLE TOP ('SUTHER', NC ECOTWE) iidans )lows 3
SPOTTED BEEBALM (SC ECOTIPE) Monordo punctota p
IRONWEED ('SUTHER', NC ECOiYPE) �emonia noveboro 2
UPLAND BENTGRASS Agrostis perennans �
TICKSEED SUNFLOWER (NC ECOTWE) Bidens oristoso 1
"APPLICATION R4TE 15 LBS/ACRE
APPLY SOIL AMENDMENTS ACCORDING 70 iT+E FOLLOWWG TABLE AT 1000 LBS�ACRE�
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APPLY LIME AT 3000 LB�ACRE.
MULCH
APPLY 4,000 LB�ACRE STRAW. ANCHOR STRAW BY A MULCH ANCHORING TOOL A
DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
TOOL.
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE- RESEED, REFERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE PER SECTION 6.10 OF NCDENR
EROSION AND SEDIMENT CONTROL DESIGN MANUAL.
GENERALNOTES
1. IN ALL DISTURBED AREAS SHOULD BE RAKED/ROUGHENED (A MINIMUM OF 5"),
AMENDED WITH FERTILIZER, SEEDED (PERMANENT AND TEMPORARY), STRAWED, AND
THEN COVERED WITH EROSION CONTROL MATTING (IF APPLICABLE) PER THE
MANUFACTORERS RECOMMENDATIONS. ONCE THE MATTWG IS DOWN INSTALL THE
LIVE STAKES AND TUBELWGS THROUGH THE MATTWG.
2. O.C. = ON-CENTER
3- TEMPORARv SEEDiNG S4ALL BF APPUED IN ALL DIS�URBcD AREAS.
WOODY VEGETATION — 6' O.C.
COMMON BOTANICAL PERCENTAGE NUMBER ROW TYPE
NAME NAME OF ROWS SPACING
SILKY D06WOOD Comus am 3a Z 3' LIVE STAKE
SILKY WILLOW Solix Sericea 30 2 3' LIVE STAKE
ELDERBERRY Sambucus canaaensis 30 2 3' LIVE STAKE
TAG ALDER A/nus serrulata �0 3 2' BAR[ ROOT
'RANDOM SPACING TO MIMIC NATURAL CONDITIONS
VEGETATION SPECIES FOR BUFFER AREAS (TUBELINGS)
COMMOM NAME BOTANICAL NAME TREE/SHRU�
SOUTHERN ARROWWOOD VIBURNUM DENTATUM SHRUB
HAZEL ALDER ALNUS SERRULATA TREE
RIVER BIRCH BETULA NIGRA TREE
EASTERN REDBUD CERCIS CANADENSIS TREE/SHRUB
SILKY DOGWOOD CORNUS AMOMUM SHRUB
INKBERRY lLEX CLABRA SHRUB
YELLOW POPLAR LIRIODENDRON TUI,IPIFERA TREE
WILLOW OAK QUERCUS PHELLOS I TREE
BUTTON BUSH CEPHALANTHUS OCCIDENTALIS SHRUB
RED CHOKEBERRY PHOTINIA PYRIFOGIA � SI-IRUB
CHOSEN SPEGES SHALL BE COMPR6ED OF 70% TREES AND 30% SHRUBS OR iREE�SHRUB SPECIES
AND PLANTED AT 200 STEMS�ACRE.
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ENTRANCE(TVP�.CONTRACTORTO
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POTENTIAL IMPACTS OR
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CONSTRUCTION OF THE TRAIL, WALLS, BOARDWALKS, AND STREAM � /
644 PROPOSED CONTOURS RcSTORA710N ITEMS MAY REQUIRE THAT THE CONTRACTOR Tp � ---� ' ���, �,
EXISTING CONTOURS
PF TREE PROTECTION FENCE
—�� �� SILT FENCE
� SPECIAL SEDIMENT CONTROL FENCE
CONSTRUCTION ENTRANCE
` t r-. ; �:I
RIP RAP APRON
FILTER BAG WLET PROTECTION
CLDSM 30.�5
cZOCK INLET SEDIMENT TRAP
—>-� >�� — ROCK CHECK DAM, TYPE A
> �>� ROCK CHECK DAM, TYPE B
- COIR FIBER MATTING
STRAW MATTMG
SEE SHEEic EC-04 THRU EC-04 FOR NOTES AND DETAILS
TEMPORARILY WORK IN THE WET- THIS WORK MAY CAUSE A
TEMPORARY INCREASE IN TURBIDITY�, HOWEVER THE CONTRACTOR
WILL MAKE ATTEMPTS TO LIMIT THE DISTURBANCE AS MUCH AS
PRACTICAL. BECAUSE OF THE URBAN NATURE OF THE CORRIDOR AND
BACKWATER EFFECT OF ROCK SILT CHECKS, NONE IS PROPOSED FOR
IN STREAM DURING ANY OF THE CONSTRUCTION ACTIVITIES.
TEMPORARY LOW WATER FORD CROSSINGS PER DETAIL 6JOA OF THE
NCDNR MANUAL MAY BE IMPLEMENTED FOR THESE CROSSINGS.
CONiRACTOR TO INSTALL
iMPERVi0U5 DIKES ALONG THE
STREAM AS NEEDED AND UTILIZE
SPECIAL STILLWG BASWS FOR
DEWATERING.
STABILIZE ALL SLOPES 3-1 AND GREATER
WITH MULCH AND SEED AS NOTED IN
PROPOSED CONTOURS SHOWN AS EROSION CONTROL DEIAILS
APPROXIMATE ONLY TO ILWSTRATE STABILIZE AS SHOWN (UNLESS OTHERWISE
G�NERAL FLOW PATHS. SEE CROSS
SECTIONS FOR ACTUAL ELEVATIONS NOTED) ON THIS PLAN WITHIN 14 DAYS OF
COMPLETION PER EROSION CONTROL NOTES
DO NOT INSTALL FILTER BAG INLET
PROJECTION UNTIL GRADING [3CGINS ACREAGE SUMMARY
THAT WILL REQUIRE TNE PROJECT DISTURBED AREA
PROTECTION ±14.39 ACRES
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