HomeMy WebLinkAbout20191022 Ver 1_More Info Received_201910022.
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NOTES:
CONTRACTOR SHALL PERFORM ALL
SUBSURFACE AND UTILITY LOCATIONS,
CONTRACTOR IS RESPONSIBLE FOR
VERIFICATI❑N OF EXISTING C❑NDITI❑NS,
❑BSTRUCTI❑NS AND UTILITIES THAT MAY
HINDER PROPOSED WORK.
STREAM ENHANCEMENT EFFORTS SHALL
BEGIN UPSTREAM AND PROCEED
DOWNSTREAM.
ALL HEAVY EQUIPMENT SHALL BE
INSPECTED DAILY FOR LEAKS TO PREVENT
C❑NTAMINATI❑N OF STATE WATERS.
CONTRACTOR IS RESPONSIBLE FOR SAFE
INGRESS AND EGRESS FOR ALL VEHICLES
INCLUDING TRAFFIC ON ADJACENT PUBLIC
ROADS,
CONTRACTOR IS RESPONSIBLE FOR DAMAGES
AS A RESULT OF C❑NSTRUCTI❑N
ACTIVITIES.
ALL EFFORTS SHALL BE TAKEN TO MINIMIZE
SEDIMENTATI❑N DURING CONSTRUCTION
ACTIVITIES AND DISTURBED AREAS ARE TO
BE STABILIZED AT THE END OF EACH TASK,
ADDITIONALLY, TIMBER MATS WILL BE
UTILIZED TO REDUCE IMPACT TO WETLAND.
BED MATERIAL FOR RIFFLES SHALL BE
IMPORTED AT THE DIRECTI❑N OF
CREEKST❑NE PERSONNEL, AND SHALL RANGE
FROM SMALL COBBLE TO FINE GRAVEL IN
SIZE.
BOULDERS FOR H—VANES WILL BE SOURCED
AND APPROVED BY CREEKST❑NE PERSONAL.
BANKFULL BENCH ENHANCEMENT SHALL
CONSIST OF LOWERING THE ELEVATION OF
EXISTING BENCH TO BE AT OR BELOW
BANKFULL DEPTH.
CREEKSTONE PERSONNEL SHALL LOCATE AND
OVERSEE CONSTRUCTION OF ALL PROPOSED
STRUCTURES FINAL PLACEMENT AND
INVERTS WILL BE DETERMINED ❑N—SITE.
PUMP AROUND ❑PERATI❑N SHALL BE
UTILIZED FOR DRY WORKING CONDITIONS
DURING STRUCTURE PLACEMENT.
Stabilization Criteria - NCGO1000
Designation
Stabilization
Exceptions
Perimeter dikes,
Scientific Name
%Total
swales, ditches
Salix nigra
20
and slopes
7 days
none
High Quality
Betula nigra
15
Water (HQW)
Fagus
15
Zones
7 days
none
Elderberry
ISambucus nigra
'lopes are 10' or
5
Crimsoneyed Rosemel Hibiscus moschedutos
less in length and
2
Swamp Milkweed Ascelpias incarnata
not steeper than
Slopes steeper
Cardinal Flower Lobelia cardinalis
2:1, 14 days are
that 3:1
7 days
allowed
7 days for slopes
Slopes 3:1 or
greater than 50
flatter
114 days
feet in length
All other areas tih
None(exceptfor
slopes flatter that
perimeters and
4:1
14 days
HWQZones
Temporary Seed Mix
0_
w
U-
0
w
c�
0
w
r
0
1/3 _ I _ 1/3 _ I _ 1/3
IFILL GAPS I
WITH COBBLES m
0
c�
20' 30 20°-30° m
�� A� 0
,H -VANE
PLAN VIEW
Planting Daes IScientific Name Seeding Density (lbs/acre)
Jan 1- May 1 lWheat or Rye Grain 50
May 1- August 15 1 Brown Top Millet 20
August 15 - December 31 lWheat or Rye Grain 50
Livestakes
Common Name Scientific Name
Seeding Density (lbs/ac)
Common Name
Scientific Name
%Total
Black Willow
Salix nigra
20
Silky Dogwood
Cornus amomum
20
River Birch
Betula nigra
15
Beech
Fagus
15
Yellow Root
Xanthrohiza simplicissim
15
Elderberry
ISambucus nigra
1 15
5
Crimsoneyed Rosemel Hibiscus moschedutos
100
M
70
MATTING PLACED FLUSH WITH BANK SURFACE
DISPENSE COIR FIBER ROLL PARALLEL WITH STREAMBANK
1' MIN. TOP OF BANK 1' MIN. OVERLAP OVER DOWNSTREAM SEAMS
-12" WOOD STAKES PLACED
IN 3' DIAMOND PATTERN
MATTING ANCHORED 1'
BELOW EDGE OF WATER
7REMOVE ALL DEBRIS
EED/MULCH
BEFORE PLACING MATTING
MATTING SHLL
_ BACKFILL WITH BETROLANKA BioDAMAT 70
RIFFLE MATERIAL OR EQUIVALENT
TO EDGE OF WATER 100% COIR FIBER
EROSION CONTROI. MAMG
SECTION
TOP OF BANK
O O O O O O O
LIVESTAKES11/ O O O O O O
Planting Plan
Common Name Scientific Name
Seeding Density (lbs/ac)
%Total
Seedbox Ludwigia alternifolia
5
S
Fox Sedge Carex vulpinoidea
5
40
Barnyardgrass Echinochloa muricata
10
25
Common Rush Juncus effusus
5
S
Jack in the Pulpit Arisaema triphyllum
5
5
Painted Trillium Trillium undulatum
5
S
Bulblet Bladderfern Cystopteris bulbifera
5
5
Crimsoneyed Rosemel Hibiscus moschedutos
5
2
Swamp Milkweed Ascelpias incarnata
5
10
Cardinal Flower Lobelia cardinalis
5
3
100
EDGE OF WATER
LIVE STAKING
iAl
.IVE STAKE DETAIL
SECTION
.4— FLOW
MIN. 2 NODES R
7
2' DIAMOND PATTERN
FROM EDGE OF WATER
MIN. 3 NODES BELOW GRADE
NOTES:
1. LIVESTAKES TO BE MIX OF TREES AND SHRUBS
INDICATED BELOW
2. ADVANCE PILOT HOLE THROUGH COBBLE OR HARD SOIL
WHERE PRESENT TO PREVENT DAMAGE TO STAKE
\ o tN.CARp�
SEAL
2250
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SIVE STAKING
SECTION
NODES POINTED
UPWARD
18" MIN
LENGTH
1/2" TO 2" THICKNESS
CUT BASE
-SAT 45 DEGREE
.IVE STAKE DETAIL
SECTION
.4— FLOW
MIN. 2 NODES R
7
2' DIAMOND PATTERN
FROM EDGE OF WATER
MIN. 3 NODES BELOW GRADE
NOTES:
1. LIVESTAKES TO BE MIX OF TREES AND SHRUBS
INDICATED BELOW
2. ADVANCE PILOT HOLE THROUGH COBBLE OR HARD SOIL
WHERE PRESENT TO PREVENT DAMAGE TO STAKE
\ o tN.CARp�
SEAL
2250
?yq......\�v' 10/2/19
SIVE STAKING
SECTION
bk
EXISTING GRADE
a�
3�
0 0
O
Q
EROSION CONTROL MATTING
AND LIVE STAKING
APPROVED SEDIMENT FILTERING DEVICE
(SEDIMENT FILTER BAG). PROVIDE
POSITIVE DRAINAGE FROM SEDIMENT
FILTER BAG TO STREAM.—,
DISCHARGE ONTO
STABLERIPRAP
PAD TO PREVENT
SCOUR HOLE--,,.,
FLOWS -
HOSES
_ DEWATERING PUMP
P
1
DIVERSION PUMP
HOSE
SZFtEI
1
SEDIMENT INTAKE CLEAN WATER
DIKE HOSE DIKE_
WORK AREA LENGTH NOT TO EXCEED THAT
WHICH CAN BE COMPLETED IN ONE DAY 1
L—W(thal)
bed
ko faw'TiTi1mr-IIJ Ib1 .w.l
CROSS SECTION
NTS
SUMP -HOLE FOR POOL
_ (12" TO 18" DEEP, 2 -FT DIAMETER)
TEMPORARY PUMP AROUND SEQUENCE
1. SET UP PUMP HATH SUCTION AND DISCHARGE HOSE.
2. INSTALL UP -STREAM SANDBAG DAM.
3. INSTALL DOWN -STREAM SANDBAG DAM.
4. THE PUMP MUST RUN CONTINUOUSLY WHILE WORKING IN THE STREAM.
5. STREAMBANKS MUST BE STABILIZED AT THE END OF EACH DAY.
DOTES:
SANDBAG DIKES SHALL BE SITUATED AT THE UPSTREAM AND DOWNSTREAM ENDS OF THE WORK AREA, AND STREAM FLOW
SHALL BE PUMPED AROUND THE WORK AREA. THE PUMP SHOULD DISCHARGE ONTO A STABLE VELOCITY DISSIPATER
CONSTRUCTED OF RIPRAP OR SANDBAGS.
Z. WATER FROM THE WORK AREA SHALL BE PUMPED TO A SEDIMENT FILTERING MEASURE SUCH AS A SEDIMENT BAG OR OTHER
APPROVED DEVICE. THE MEASURE SHALL BE LOCATED SUCH THAT THE WATER DRAINS BACK INTO THE CHANNEL BELOW THE
DOWNSTREAM SANDBAG DIKE WITHOUT CAUSING FURTHER EROSION BETWEEN THE SEDIMENT FILTER BAG AND THE STREAMBANK
TEMPORARY PUMP AROUND
EXISTING GRADE
�.1
EROSION CONTROL MATTING
AND LIVE STAKING
(BRUSH TOE WHERE INDICATED)
DIMENSIONS SHALL REMAIN AS
PREVIOUSLY DEFINED ON-SITE
AND SHALL BE VERIFIED DURING
CONSTRUCTION BY CREEKSTONE,
PLLC PERSONELL
PLAN VIEW
STREAM
SUBJECT WETLAND
SECTION
TIMBER MAT . tN.....
SEAL
2250
10 2/19