20160979 Ver 1_Mitigation Remediation Plans_20210504

360o Glenwood Avenue,Suite ioo
Ores
Raleigh,NC 2'7612
Corporate Headquarters
6575 West Loop South,Suite 300
Bellaire,TX'774o1
Main:713.520.540o
April 23,2021
Sam Dailey
USACE—Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest,NC 27587
RE: Poplar Creek(SAW-2016-01985) Stream Mitigation Site—Year 2 Monitoring Adaptive
Management Construction Complete Memo
Dear Ms. Dailey,
In response to problem areas identified in the Year 1 (2020)Monitoring Report and the Year 2 Monitoring
and Adaptive Management Plan, RES completed the identified treatments (described below) in the early
Spring of 2021. Construction began onsite on March 30th, 2021 and was completed on April 8th, 2021.
Planting of the disturbed areas and livestaking the newly completed structures concluded on April 13th,
2021.Bare root species planted included American sycamore,river birch,willow oak,swamp chestnut oak,
and buttonbush. Livestakes planted included black willow, silky dogwood, and silky willow. Photographs
of the treatment areas are included below(both pre and post construction)and Figures are provided to show
the location of work conducted.Note that the photographs of the structures occurred on April 7th and 8th so
they were not livestaked yet, but a photo showing the livestaking is in the photographs documenting the
planting. The Adaptive Management Plan and the response to the IRT comments are included as
reference.
Thank you,
rrix—A( 6;(--
Ryan Medric Ecologist
res.us

0
Poplar Creek Year 2 Adaptive Management Construction Complete
YB 1-C
Area 1
Issue: Erosion behind a log toe structure. (Photo looking downstream)
Cause: Livestake mortali
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Treatment:Backfill the eroded area with a straw bale and cap the area with matted soil lift and live cuttings.
Photo lookin a downstream
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Area 2
Issue: Erosion behind a log toe structure. (Photo looking downstream)
Cause: Livestake mortality.
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Treatment: Backfill area eroding away with rock, cap with matted soil lift and live cuttings. (Photo
lookin downstream)
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Area 3
Issue: Brush toe washed out. (Photo looking downstream)
Cause: Inade•uate brush toe ke -in.
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Treatment: Grade bank back,mat, and livestake. (Photo lookin' downstream)
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Area 4
Issue: Bank erosion. (Photo looking downstream)
Cause: Point bar graded slightly higher in elevation than outside meander. Forcing bankfull water over
structure.
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Treatment: Grade point bar to allow for more flow through channel and livestake and mat graded area.
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Area 5
Issue: Brush toe washed out. (Photo looking downstream)
Cause: Ina uate brush toe ke -in.
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Treatment: Re.lace brush toe. Ca. with soil lift and live cuttin_s. (Photo looking upstream)
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Area 6
Issue: Damaged log toe. (Photo looking downstream)
Cause: Im.ro.er installation.
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Treatment: Re•lace with brush toe. Cal with soillift and live cuttin s. (Photo looking downstream)
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Area 7
Issue: Brush toe washed out. (Photo looking downstream)
Cause: Ina uate brush toe ke -in.
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Treatment: Grade bank back, mat, and livestake. (Photo lookin r downstream)
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Area 8
Issue: Damaged log toe and bank erosion. (Photo looking at downstream)
Cause: Im�ro per installation and _ adin_ point bar at a hi_ elevation than outside meander.
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Treatment: Grade point bar,mat and livestake.Replace log toe with a shorter log to widen pool. Backfill
with Class B/I rock. Ca. with matted soil lift and live cuttin_s. Photo lookin downstream)
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Area 9
Issue: Bank erosion and damaged log toe. (Photo looking at left bank)
Cause: Im•ro per installation and yyp adin_ point bar at a hi_her elevation than outside meander.
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Treatment: Grade point bar, mat and liv es take. Replace log toe with brush toe. Cap with soil lift and live
cuttings. (Photo looking downstream)
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(Lookin. u'stream standin' at lower end of brushtoe)
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Area 10
Issue: Bank erosion around log sill. (Photo looking at left bank)
Cause: Lack of comsaction on lo_ sill backfill and livestake mortalit .
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Treatment: Install brush toe,originally planned to be log toe,and reset log sill at higher elevation. (Photo
looking downstream)
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12

0
Area 11
Issue: Bank erosion(Photo looking at left bank),
Cause: Lack of corns action on log sill backfill and livesNtake mortalit .
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Treatment: Notch the left side of the log sill. Rebuild bank with Class B/I rock. Cap with matted soil lift
and live cuttin s. Photo lookin downstream
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13

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Area 12
Issue: Bank erosion.
Cause: Livestake mortality.
Treatment: Original plan was to grade point bar, mat and livestake. Upon construction work, crew was
able to lower elevation b flattenin_with bucket. Point bar then livestaked. (Photo lookin l downstream)
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Area 13
Issue: Bank erosion. (Photo looking downstream)
Cause: Wron_ an-, on lo_ sill.
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Treatment: Notch the left side of the log sill. Add brush •toe. Cap with matted soil lift and live cuttings.
(Photo lookin downstream
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15

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Area 14
Issue: Bank erosion. (Photo looking upstream)
Cause: Lack of corns action on lot sill backfill.
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Treatment: Rebuild bank with Class B/I rock. Cap with matted soil lift and live cuttings. (Photo looking
downstream
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2

Area 15
Issue: Bank erosion. (Photo looking upstream)
Cause: Im'ro per ke in of log sill. SS
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Treatment: Ke in _rade control a minimum of 5 feet into the bank. Photo lookin' us stream)
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6
YB 1-C — Vegetation
i ,
lin i
` fr • ' I}
--
fj = .:
C
p-`4 - - 2 9' ;. —/ ),i.1,,.- t c \ "' a- 'k
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Planting livestakes April 4/13/2021 on newly constructed structures and graded area.
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r ; L 1 , pp
see if
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r
r ; r P k '*.S R ��h. 2" `--, yY - 4 erg ` a,l,�
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/ i%�'!? ��yi hi ,i.! 4(� �2.,..1. arc ., - .y, wa ra
Newly planted bareroots planted 4/13/2021 in the floodplain of YB1-C

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of haw t 1t, , .^
Planted area,seeded and planted with bareroots.Mixture of bareroots and already established Bald Cypress
Trees that were in the middle of the equipment path and able to survive in the floodplain of YB 1-C
19

6
YB2-B — Vege ... . .....„,,?,,,,..„.„,„* .
tation
• - M` - rpx �" rt1 tJlZ'
ti
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Bare roots on the hillside of YB2-B
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^n- 71 t.c ✓ y," -
Bare roots near VP6

f' / `..fL) -, , 'i , -r1 • • ~ •
0 25 50
S.',.\44N yff, ii Ores
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`Ati 7 •
i , t• r w h ,• t '. • 4. t a Feet
•
•
Ilk �h � ;�� ,t :�► �'''` - M ••. Adaptive Management Plan
#�� �. iti t• • _ Reach YB1-C
pi., ..• y ,�•-� . •� h�! I ,•.ram • ( ! •s ,, 1 + .
�f J. - .ks: -- — , • 1r . ,. tir: :. . . • •� Poplar Creek
i�1 jf `•+� • .. . . .. : .- Stream Mitigation Site
« t C 3 ; : MY2 2021
'd
kw:
.r � �" •.t �,•L� / '� ^1 �` , r � LOD: 0.39 acres Johnston County,
`.• North Carolina
t
,• ')." . . , -7 . -. .. '+' - %• 't •: ••• ' __ Date: 3/23/2021 Drawn by: RTM
i.
VOA
* . _. —
� � a ,• "'r• • �. . .. • 4 Checked by:JRM 1 in=50 feet
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,It
,, '" � •Z�. . ;, ' _ „n. ,4. '-- ,., _s Legend
+•• 44 ,.A. r ), • ,'t 14AOf 4, ',r t • - x � -?•� a Conservation Easement
�. il It'
,� _ � •+ . -4 - Vegetation Plot
.� r�*I`l` •.0% * 9 '. •7 ,J; � • >320 stems/acre
�/ \' ` - __• r-7 -. <320 stems/acre
\,,, , , \... Allip, ltidiVi. . __ . - - - -, ,
Limit of Distrubance
d •T )
' Cross Section
F3
_ � ,j f4.94
� � As-Built Top of Bank
Itkr.,
Structure
•
. ►.� ./ •
't ��• ..� $ C10
Mitigation Plan Stream
, ,�, ,c�. _ •• 11�j //. P1 Restoration
1 ^�'• �.- T. �, ' . .. - P2 Restoration
1 - .� •.r4 4- • (.,. .. .•
1112 Enhancement I
• ,.:�J1,
r �J
ti Enhancement II
�, , \ - �' , s_.fir• 3i• �. t . r ,,r• 1-• ,4 :k:' t` /` ® Stage Recorder
. a "� .� _�•�y � a .�•rt. ";. `Ly13 • Row Gauge
t �„ t =.• «� • , !� Ai • Ambient
. 7• • . •�. •-7 .,ik-:$4 • ;1 f �' i a¢1'.� Repair
.. . '
•
• / ' • �• 4,•t ' • 44-
• .ter' I'' •v �. I./J s r r
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• Adaptive Management Plan
' Reach YB2-B
= 3lipy \ � a
• ' ....l•
Poplar Creek
-*`i, /.., f/y, 1(•A v.. . ,%' 4 ..,„„* .
4 A / _ Stream Mitigation Site
. �- ` / MY2 2021
4 f
• P' s `• '� M 1,, - Johnston County,
• ,, ' ` ( )- (' , .- North Carolina
.• , ,: p
- 1'L _ • '- - '- Date: 3/19/2021 Drawn by: RTM
% _ ,,
r r • N(• / LALIAg6 Checked by:JRM 1 in=50 feet
f � ' 1.5
•
~ •i • - •. . 1nn• n15acroc et- - .
..
..
• ... . . Legend
`; - a Conservation Easement
/�� •
*' .+� . _ ` \ �r,' :Y i •'... • , Vegetation Plot
r ore , , � •� .h - >320 stems/acre
11,1
��• ',f" , ;t� ,, '' "' <320 stems/acre
y y ,, �° t Limit of Distrubance
•.'7 I!r / / -' f it ef' ;, - -• - , ., o�,I !7� r,� �' O "IIPiff1 !
' :i.
` . •
Cross Section
1, � ig
• t1. I' L . I leg • As-Built Top of Bank
.4 _." ..�•. �. �` • • _I! ' • ,.:« stif ;, 1 ��.. i +� Structure
• , i • • t ,; < •
A • • . f „ •�' tc. - k. Mitigation Plan Stream
1 , ` • .. A. �; P1 Restoration
Imo_.a'. ,ter is . . `� IT'i �- y 1 \�i4• ^�
r •�>•� t• 4` , :f , '{•• , . 3 7 T ►. •. _ P2 Restoration
I ; , , . `� •• ��, , 1' , �., '! �• ' '* ' .� �/� Enhancement I
•
g .e� - •�.' i _/J • 'i ,r .. '� Enhancement II
• i ` �. �' t • , " ++,L, r r. ® Stage Recorder
•
s _ t•.' w . �► Tr% •i • �, • .: O Flow Gauge
. �. 1 - ' ` +� ,a 4!,. : �' `a 1• >� • ._��:•
�, �► �;, Qo Ambient
< i r • � a, , •
- 1 L. , '. I.'. v 'i! • ; • . , _ �5� ,. �` • Repair

l 1 0 1
POPLAR CREEK ASBUILT REDLINES res
#### 3600 Glenwood Ave, Suite 100
Raleigh, NC 27612
Main: 919.829.9909
www.res.us
Engineering Services Provided By:
N E U S E RIVER BASIN : H U C 03020201 Angler Environmental LLC
License: F-1428
APRI L 2018 SEAL
RESOURCE ENVIRONMENTAL SOLUTIONS , LLC
3600 GLENWOOD AVE, SUITE 100
RALEIGH, NC 27612
_A"..._
53
I
-- Ily Sheet List Table
Sheet Number Sheet Title Q
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-- Cover 1-
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illif 52 ILEAC I-1 YD
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55 irt 54 KEACI-1 YD2 }
55 REACh YD2 0J
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a PROJECT NUMBER: 20170243.00.RA
o) PROJECT MANAGER: ####
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DESIGNED: ####
2 DRAWN: ####
cn CHECKED: ####
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a) SITE MAP SHEET NUMBER:
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NOTES: I
301 4.9 1. IN GENERAL,STREAM CONSTRUCTION SHALL PROCEED FROM AN UPSTREAM TO
301 _ DWIGHT B.YOUNGBLOOD,JR.DB DOWNSTREAM DIRECTION.
1908,PG 697 PB 55,PG 230-235
1.6 0.85__
2. ALL EXCAVATED MATERIAL MUST BE PLACED WITHIN DESIGNATED STOCKPILE AREAS.
REMOVE STOCKPILED I\ BANKFULL STAGE 3. ALL IMPERVIOUS DIKES AND BYPASS PUMPING EQUIPMENT SHALL BE MODIFIED AT THE
�� END OF EACH DAY TO RESTORE NORMAL FLOW BACK TO THE CHANNEL.
\\\\\\
---0 SEDIMENT
_ 0. a FIL • STING CHANNEL 0.8 4. CONTRACTOR SHALL NOT COMPACT SOIL AROUND ROOTS OR TREES TO REMAIN,AND
0 /// SEE DWG �' SHALL NOT DAMAGE SUCH TREES IN ANY WAY. EXCAVATED OR OTHER MATERIAL
\ 4ti i SHALL NOT BE PLACED, PILED OR STORED WITHIN THE CRITICAL ROOT ZONE AREA OF
\ /� \\\ / /� / / THE TREES TO BE SAVED.
I \
\ \\\ \ \ / / / , r \ OA
, c_ 5. UNLESS NOTED OTHERWISE, FILL MATERIAL GENERATED FROM CHANNEL EXCAVATION J
\ \\ \ C,\\ \ I / DWIGHT B.YOUNGBLOOD,JR.DB / -
\ \ \\ \\\\ / AND STABILIZATION SHALL BE PLACED INSIDE THE EXISTING CHANNEL TO BE
\ / /�{�, 1908,PG 697 PB 55,PG 230-235 TYPICAL SHALLOW CROSS SECTION ABANDONED AT AN ELEVATION THAT PROVIDES POSITIVE DRAINAGE TOWARDS THE c.
`t 3 , FILL EXISTING CHANNEL PROPOSED CHANNEL.
\\\ V \\\ \ ( 0 SEE DWG D2 1 1
\ \\ \ \\\\\\ I / / ,./ / \� I 5.0
6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS.
1 THIS MATERIAL SHALL BE INSTALLED ON THE PROPOSED BED OF SHALLOW CHANNEL
\ ,� \ 1 1 1 / vI 1.6 1.8 1.6 SECTIONS AND SHALL BE AT LEAST 6 INCHES DEEP WITH A MAXIMUM D50 OF 9mm FOR
\\ III 1 I / / �� �/ / \ BANKFULL STAGE REACH YB1-C. IF SUITABLE NATIVE GRAVEL SUBSTRATE IS NOT AVAILABLE THEN A MIX
\ \\\ I t' I I / /7 \ / ) 0 Airrl _- , ,fit.
OF#57 GRAVEL(50%)AND NATIVE MATERIALS(50%)IS TO BE USED FOR REACH YB1-C.
\ \ \ ``\ A* I I f % .f_ cP \ \ 7. IN-STREAM STRUCTURES PROPOSED ALONG THE OUTSIDE OF MEANDER BENDS
\\ \\\\ ` I 2+00 �i• ' °O . `a \\ (BRUSH TOES, LOG VANES, ROOT WADS,AND LOG TOES)MAY BE USED
I II II I a � a �j�� \: INTERCHANGEABLY THROUGHOUT THE PROJECT PER APPROVAL FROM DESIGNER.
if\\\ I III II I I I n J � v!:'S!!!� Iis I :,.
lio 1\ lir 1.1
I III I - � - _ _ 0
XS 09LP I
I I II I I I I ifigoi, `' a \ ixs IOLP 02 LEGEND
41111)
III r \ _
\ hl ����'-="' •c %/ - �,; TYPICAL POOL CROSS SECTION
III I VP-7\ ° a �/
/ I III � �_ / Nr.., % AS-BUILT IN-STREAM STRUCTURE
II I I I I `/ -/ \ \ z+vr' tillSAX j AS BUILT CROSS SECTION •
III I I I \ _ REACH YB 1-C \ 0 � Ooi / ,,or..---7. 5.0
IIG )I� I n \ \ P I RESTORATION .��� _ , / / AS BUILT CHANNEL LIMITS
/ (STA. 00+25 TO 07+03) - % 3.0 0.9 FULL SCALE: 1"=30
/ / //// / \ \ ��� \ / •. _ EXISTING CONTOUR MAJOR 0 30 60
/ 1 �+ ` �' -
I I /// / ►// ( -- \ I \ N X\09RP
EXISTING CONTOUR MINOR - -
/ l BANKFULL STAGE
2" = FULL SCALE
o / ////// I ) / \ \ \ \ / _----
X \ \ \ \ • PROPOSED CONTOUR MAJOR -(5j0)
1` 1" - HALF SCALE
/ \� / \ XS-1ORP PROPOSED CONTOUR MINOR
\ a� ///// / 1 \ \ / 1.2
/ // // �{�, \
EXISTING WETLAND W
/ / // \" FILL EXISTING CHANNEL a \ \ Q o
// / / \ a \ SEE DWG D2 0 a �� EXISTING TOP OF BANK - - - - TB a
/ /' '// / 1 I \ I \ \ EXISTING BOTTOM OF BANK - - - - BB i_ cz
0 j
c' a I a a_
EX!:TIN i JUTFAI_L.TO BE \ - - - WLB- - - WL - I I I PROPOSED CENTERLINE OF
Rr PLAV '_D `W TH SIPHON a I _ - w� - - -`w� I TYPICAL RIGHT MEANDER CROSS SECTION CHANNEL
•ESI` 'JED BY OTHERS) ` \0prl' *0
a % \ �� .....\-
-� p �� I �C* EXISTING FENCELINE - - - - X
l lIh'
�l I ' I \ i / `+ ' o d'� \2ID' WL �' 1 /�� I 5.0
/ / I I ;�{ ° `e�" ,� ' / ( '� EXISTING TREELINE
1
/ // // ` � \ �' / \... L OE,. \ WL@� ` / 2 0.9 3.0
I a I \ I / 1 �{ -�►� �1�� PROPOSED TOP OF BANK
' \ 1 " e-/ . e\LC''''..- \ L`c ... f- r BANKFULL STAGE LIMITS OF PROPOSED
I \ �// �° /�\ J C * \ �a{ a / �W3 CONSERVATION EASEMENT
I \ \ ,n l I r L mot- L A PROPOSED CHANNEL PLUG jA O
t \ /
Z
PROPOSED FILL AREA 0 O
a
0_
U CC
1 I EL w D
DIFFUSE FLOW STRUCTURE ( •
1 2
156 1 156 TYPICAL LEFT MEANDER CROSS o w
SECTION
1 (7) ill cc
BRUSH TOE \����������,XX7
1 CC CC
153 - - EXISTING GRADE A_ONG 153 DOUBLE LOG DROP
1 STREAM CENTERLI VE -
LOG TOE PROTECTION
I ROCK CROSS VANE PROPOSED
-STA 0+78 CHANNEL BOTTOM DOUBLE LOG DROP LOG SILL Q z0
ELEV 148.08 LOG SILL LOG SILL LOG SIL STA 3+09
150 - - -N STA 1+30 STA 1+86 STA 2+4 ELEV. 145.33 PROPOSED 150 Z D
��C , ELEV 147.46 ELEV 146.76 ELEV 146.06 TOP OF BANK LOG GRADE CONTROL z O JO
- - _
_1
�_,_,_w_.__ - DOUBLE LOG DROP LOG SILL LOG VANE - - - . Q Q < c,
�V � : ---------- STA 3+13 STA 4+01 it W U w N
'•= = =!=!1 � ,�If
ELEV 14�.80 ELEV 143 93 _ I z z
147 _- 147 LOG J-HOOK
CC
Ripliwor-"MIIIMmom LOGSLL 5 Q
T
, _ STA 4+29 RIFFLE GRADE CONTROL ������/. m Z w
o ELEV 143.38 (n } _ 2 o
v ., QI- U Dc)
-� 'r1 /Or Ma�A ��. Y Z Q O9 w w
144 - > Q - - 144 i�!%�`.•� W w -
W O O d- co O N - r' ��.�... W O M cn O
N N > r. M r- CO . \ ' L' III II I
rn m in I \\ BRUSH BED SILL
1\ CC 0 CD
co
J I� W N N O co
o > L.LJ> W W W M co FLOODPLAIN SILL - U Z Q Z o
cO > > J J CO M N N
Ki J J [xi W W W W L j L>L LJLj V > > v d- > Oo N- cfl co O cfl co co co _
- + W W u') J J Lo M J J W W r` r� V V V- O co 1 ' / i O <
Oc\J Lo + W W CO co. W W > > J J >Li j > J LO Ln Ln •- ,- 6 ,- 41 LO V co M M �l (O/� z (n
•
Q O -� M N W W CO J J J J W W W O I� O V V O - O? "i O LU LL rn H co co
rn •O +-W-W--W-W-W-W--1-->-->-> > >-J-J-� Lri_� �_�_�.�_� -� 1410 U m
141 CO W O -p co rn W • W W W W W W W W-W V >-> v > d Z uj OO
0 0 + + < Q + + Q Lo O Ln cy W r J J V O J Lo cO J V `- W W `- W W ,- L>u > ,- > °N° o �° N rn _ 2 J CC= N
QH H Q < u) u) Q-Q u) 0.-) M - - O - N W N c0 I` N O O W W W W W W W W W W W O N M N v - N ti
CO CO H H Q O O M N O M W O L2 Jr . J V J M cvj - - - V O• V M < 0 � p
(n Cl) Q Q (n co
Q Q aMo O N N N N N N W cO M CO M N W N N W N > > V V >L.J (> �_ > W co
N
��� (n- - ¢ N H N H N N N W• N t (y } } W W W W > > W J M > J V N-Oo nj •• - U Z cn i
Q Q (n cn Q (n (n Q (n 17) 2 N WN N O M J J W W W Ly W > Lo N M N NH H H H } Q Q + Q Q t Q } W W J J cO M r J M LL NN V M M W zJ
(n Cn (n aJ N c~n c~nN ~ ~ N ~ cn ¢ cn--M rno-a0__v.o- -_«,_W_N W W � > > vi. v > 138 Q z 0 0co
p Q ,Q-(n cn-Q-(n.- 00-.I`.- m13Q (j (j (jH
N M M MM w rNf7M W WW :00
> > w 0_ a 0 QM M H M M i Q 00 + Q co
+ WW W W OH H 07 cn Q Q (n (~ N- < u~) of rnrn N- _ of - / \
(n (n (n cn M H OM M ' ,_ LO M
Q u) } V
H (n V 7 H < •+ + Q -
135 ) 1-� 135
DRAWING NUMBER:
132 I I I I I I I I I I I I I I I I I I I V V I V V V V 132 S 1
0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 4+80
SCALE: HOR 1"=30'; VERT 1"=3'

NOTES: 1
m o - 4.9 __ 1. IN GENERAL,STREAM CONSTRUCTION SHALL PROCEED FROM AN UPSTREAM TO
c0(P vN o p DOWNSTREAM DIRECTION.
mm _ 1.6 __ 0.85 _
vmm Zo�O N ZA 2. ALL EXCAVATED MATERIAL MUST BE PLACED WITHIN DESIGNATED STOCKPILE AREAS.
m
�"� ��Z Z G BANKFULL STAGE 3. ALL IMPERVIOUS DIKES AND BYPASS PUMPING EQUIPMENT SHALL BE MODIFIED AT THE
65
a ��G v END OF EACH DAY TO RESTORE NORMAL FLOW BACK TO THE CHANNEL.
u 0.8 4. CONTRACTOR SHALL NOT COMPACT SOIL AROUND ROOTS OR TREES TO REMAIN,AND
�v� ��cn i
SHALL NOT DAMAGE SUCH TREES IN ANY WAY. EXCAVATED OR OTHER MATERIAL
R SHALL NOT BE PLACED, PILED OR STORED WITHIN THE CRITICAL ROOT ZONE AREA OF
THE TREES TO BE SAVED.
•j
>I►' 5. UNLESS NOTED OTHERWISE, FILL MATERIAL GENERATED FROM CHANNEL EXCAVATION
At AND\
'' SHALL BE PLACED INSIDE THE EXISTING CHANNEL TO BE IV1 '"� TYPICAL SHALLOW CROSS SECTION ABANDONED ATION AN EL VATION THAT PROVIDES PO ITIVE DRA AGE TOWARDS THEi.
PROPOSED CHANNEL.
` 5.0
6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS.
. \
1.6 1.8 1.6 THIS MATERIAL SHALL BE INSTALLED ON THE PROPOSED BED OF SHALLOW CHANNEL
SECTIONS AND SHALL BE AT LEAST 6 INCHES DEEP WITH A MAXIMUM D50 OF 9mm FOR
- BANKFULL STAGE REACH YB1-C. IF SUITABLE NATIVE GRAVEL SUBSTRATE IS NOT AVAILABLE THEN A MIX
REACH YB1-C OF#57 GRAVEL(50%)AND NATIVE MATERIALS(50%)IS TO BE USED FOR REACH YB1-C.
FILL EXISTING CHA.N N� / , RESTORATION T• �o
i RCS I ORA I ION / `
SEE ''G D2 / (STA. 00+25 TO 07+03) \ 7. IN-STREAM STRUCTURES PROPOSED ALONG THE OUTSIDE OF MEANDER BENDS
(BRUSH TOES, LOG VANES,ROOT WADS,AND LOG TOES)MAY BE USED
_ "`�j� INTERCHANGEABLY THROUGHOUT THE PROJECT PER APPROVAL FROM DESIGNER.
�- �� DWIGHT B.YOUNGBLOOD,JR.DB IIIIIr 1.1
/ 1 i 6+00 d 1908,PG 697 PB 55,PG 230-235 J
Co:), \,,,,, , Aidt.17/0,41z1,
-� c 0.2
\ •
f LEGEND
Itr-
%! TYPICAL POOL CROSS SECTION
i 44 4. _ , i
y-- ,.��'� AS-BUILT IN-STREAM STRUCTURE
i � �� / / AS-BUILT CROSS SECTION • •
V8 / g� 5.0
I u� AS-BUILT CHANNEL LIMITS
ly
3.0 0.9 FULL SCALE: 1"=30
\ -op _ EXISTING CONTOUR MAJOR
FILL TING %�' 0 30 60
CHANEL "0,1,.,,,40.0
, 0 BANKFULL STAGE EXISTING CONTOUR MINOR
SEE DWG D2 / � PROPOSED CONTOUR MAJOR 50 1` 1" - HALF SCALE
2" = FULL SCALE
���i PROPOSED 3.2' BASE DITCH -
...i j �1 '
SIDE SLOPES = 2.5:1 PROPOSED CONTOUR MINOR
MIN DEPTH = 0.6' iii t
1.2
EXISTING WETLAND W
SLOPE = 2.36% - - - Q o
EXISTING TOP OF BANK - TB a
i
EXISTING BOTTOM OF BANK - - - - BB j
LOG SILL
TOP ELEV= 141.51 PROPOSED CENTERLINE OF
A BED ELEV. = 0.6' TYPICAL RIGHT MEANDER CROSS SECTION CHANNEL
LOG SILL EXISTING FENCELINE - - - - X
// TOP ELEV= 143.57 __ 5.0
A BED ELEV. = 0.6' EXISTING TREELINE
0.9 3.0
4 PROPOSED TOP OF BANK -
' '��� LOG SILL
I' TOP ELEV= 144.43 /t LIMITS OF PROPOSED
A BED ELEV. = 0.6' BANKFULL STAGE
CONSERVATION EASEMENT LCE
PROPOS CHANNEL PLUG A O
1.2
z W
PROPOSEDED FILL AREA Oi O
a
U
0_
w CC
FL DIFFUSE FLOW STRUCTURE 1 a
156 156 TYPICAL LEFT MEANDER CROSS w o w
SECTION
0 rn w CC
BRUSH TOE \ ,XX7
<
LU CC CC u_
153 153 DOUBLE LOG DROP J
LOG TOE PROTECTION SEIMINIED
cn
LOG SILL z
150 150 Z o
LOG GRADE CONTROL W - JO
_1LID
LOG VANE - - - 3 0 Q o
LOG SILL PROPOSED = w 0
147 STA 4+81 TOP or BANK DOUBLE LOG DROP 147 LOG J-HOOK - 0
Z z
ELEV 142.70 LOG SILL STA 6+00
_
_1 CC oc _
TA 5+17 LOG SILL ELEV 140.77 D COz -J
ELEV 142.35 STA 5+70 DOUBLE LOG DROP Itt .tl•' Z w J
RIFFLE GRADE CONTROL ���et t/. m w <
ELEV 141 38 STA 6+05 Q H P o
ELEV. 140.31 _OG SILL Y Z 0 O w 1
144 144 :��`�i:��' LLI Q (n -
Eii : W a CC cc � 0
STA 6+39 DOUBLE LO DR P BRUSH BED SILL W W
ELEV 139.60 STA 6+68
c ELEV 139.05 �- � ....
� 0 ~ ci)~ 0
�� �� _ FLOODPLAIN SILL ICC a I- 0 5
�� DOUBLE LOG DROP Z o
141 �� `_��r STA 6+'3 CnI- � o
1► �IIIP .�!�!� ELEV. 138.63 141 LLi Q Z ui w
p _ r --- Q O co
H = o r
v ,n �� -�' \�- Z H N c� ,-
up in v v, ) . ( I- CD : rn
�W v - p v I I i �I j W z CC c LL• Li
138 - -w - -W w W W- --w-� ` /�� 138 o a z> oo m
J w w w w-w-w w w > p p rn cc cc > p = O
W O J >LLJ O) --i _ J W N- co I � ' O Q !Z
M + W J (NO) W W > > J N O) Oj O) 1
co O) Lq In W N 6 LCj 7 • J -J W - M CO N CO p pO
C, H p N-N p i v + + r W N- c`') co W > `r > p M M N c
as
+ a cn + N + Lo L17 117 W p p J W W 0° / \
_� H N Q Q (o H a + a M + M W W W > W 0 > > 2 > N
II
a (n a j Cn H a H (.0 a H + 00 it J O) J p J W W O) 8
(1) u) a C H 'n in a W co (0 n W N W W w 1-1
W
135 �- `� -a-� w -N- M-w-cr) co w N-- >- 135
u) (n V coO p co N co co p 71 n- W J
aLu
o ¢ v~i -H- `° v w M DRAWING NUMBER:
+ H u) a + a s + a -
a a U u) a co +
- - H H co
a 1-
132 1 i 1.- i i k I. i i i �, i u) i I-�- 132 S2
4+80 5+00 5+50 6+00 6+50 7+00 7+29
SCALE: HOR 1"=30'; VERT 1"=3'

301 301
.30 NOTES:
1. IN GENERAL,STREAM CONSTRUCTION SHALL PROCEED FROM AN UPSTREAM TO i.
301
DOWNSTREAM DIRECTION.
UPSTREAM STA.21+30=5.0
•
30 _ DOWNSTREAM STA.21+30=5.3 2. ALL EXCAVATED MATERIAL MUST BE PLACED WITHIN DESIGNATED STOCKPILE AREAS.
1.3 1.2
1.4 1.25 3. ALL IMPERVIOUS DIKES AND BYPASS PUMPING EQUIPMENT SHALL BE MODIFIED AT THE
END OF EACH DAY TO RESTORE NORMAL FLOW BACK TO THE CHANNEL.
► DWIGHT B.YOUNGBIJOICaGIRLS 30 7 BANKFULL STAGE
1232,PG766766 4. CONTRACTOR SHALL NOT COMPACT SOIL AROUND ROOTS OR TREES TO REMAIN,AND
SHALL NOT DAMAGE SUCH TREES IN ANY WAY. EXCAVATED OR OTHER MATERIAL
00,77
SHALL NOT BE PLACED, PILED OR STORED WITHIN THE CRITICAL ROOT ZONE AREA OF
THE TREES TO BE SAVED.
/ 5. UNLESS NOTED OTHERWISE, FILL MATERIAL GENERATED FROM CHANNEL EXCAVATION J
\� / ? LOG SILL AND STABILIZATION SHALL BE PLACED INSIDE THE EXISTING CHANNEL TO BE
�� �/ TOP ELEV= 153.70 ABANDONED AT AN ELEVATION THAT PROVIDES POSITIVE DRAINAGE TOWARDS THE i.
PROPOSED CHANNEL.
j --- j =_ -- 4 BED ELEV. = 0.6'
_ TYPICAL SHALLOW CROSS SECTION 6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS.
7 I i / j -� UPSTREAM STA.21+30=5.0 THIS MATERIAL SHALL BE INSTALLED ON THE PROPOSED BED OF SHALLOW CHANNEL
/ IL�EXIsfitNG�RANNEL PROPOSED 4' BASE DITCH DOWNSTREAM STA.21+30=5.4 SECTIONS AND SHALL BE AT LEAST 6 INCHES DEEP WITH A MAXIMUM D50 OF 17mm FOR
I • I SIDE SLOPES = 4:1 1.3 2.4 1.3 REACH YB2-B. IF SUITABLE NATIVE GRAVEL SUBSTRATE IS NOT AVAILABLE THEN A MIX
�� �, \ -� / �j/ / / - �VUO 02 _ _ _ M)_ /// \ \ MIN DEPTH = 1.6' 1.3 2.8 1.3 OF#57 GRAVEL(20%),SURGE STONE(20%),AND NATIVE MATERIALS(50%)IS TO BE
/ / \ SLOPE = 5.6% USED FOR REACH YB2-B.
BANKFULL STAGE
/ j / �I ,s ' I 7. IN-STREAM STRUCTURES PROPOSED ALONG THE OUTSIDE OF MEANDER BENDS
/'• / �- ,-_ / _, n \ N. (BRUSH TOES, LOG VANES,ROOT WADS,AND LOG TOES)MAY BE USED
9 _____,__
/� INTERCHANGEABLY THROUGHOUT THE PROJECT PER APPROVAL FROM DESIGNER.
� ------ NW 00i99
sZ.MIL / / i 8+00 T \\
w���a 11- ''.-4.p.sr D x\_
VS/ / - - _` _ `' - '. -. 9 ''• / ��_ ���o�0 _ _ I // L. °o �.,r t _ S-05LP� I
-; (Pb1.;
- / - _ \ _ LEGEND
.........,_:
! . ___
per 4' N..., / -lik" / r' _ ...7.,..., ,.....,.. \ _ s�s� �!�� 0.2 f AS-BUILT IN-STREAM STRUCTURE
2,
�.
.., -
- ;� - _ _ °:� TYPICAL POOL CROSS SECTION AS BUILT CROSS SECTION • •
' 74
� -- \ ` \ \ �k'''�� AS BUILT CHANNEL LIMITS
_ ��r ��
tee - - \\� EXISTING CONTOUR MAJOR
•: •r \ �\ XS-05RP `:��` UPSTREAM STA.21+30=5.1 FULL SCALE: 1"=30
..,,� rn� , i T� - - i �_� _ DOWNSTREAM STA.21+30=5.4 0 30 60
V W / - \ \ �� -- 3.0 1.2 EXISTING CONTOUR MINOR
Q \\�\\ _ 3.2 - _ 1.2 PROPOSED CONTOUR MAJOR ( 5j0) 2" = FULL SCALE
- - \ �� •" 1\ 1" , HALF SCALE I`
- i - \ \\\ BANKFULL STAGE PROPOSED CONTOUR MINOR
_ �� REACH YB2-B �� \ \ \ \
/ P1 RESTORATION \\\ \ \ \
/ / (STA. 13+20 TO 26+70) \ EXISTING WETLAND i- 0
Q N
/ � \ 1.1 EXISTING TOP OF BANK - - - - TB
----_______-------------\
\
EXISTING BOTTOM OF BANK 0T- BB j
PROPOSED CENTERLINE OF
CHANNEL
cL EXISTING FENCELINE - - - - X
TYPICAL RIGHT MEANDER CROSS SECTION EXISTING TREELINE
UPSTREAM STA.21+30=5.1
--WI
V
� DOWNSTREAM STA.21+30=5.4
in--- PROPOSED TOP OF BANK - -
1.2 3.0
--or1.2 __ 3.2 LIMITS OF PROPOSED
CONSERVATION EASEMENT LCE
\ J
`'� BANKFULL STAGE PROPOSED CHANNEL PLUG j Z
A 0
Z
. .
1.1 PROPOSED FILL AREA � � IZ ow
DOUBLE LOG DROP 1.1 E a_
165 STA 17+29 I 165 w D
ELEV. 160.37 DOUBLE LOG DROP DIFFUSE FLOW STRUCTURE
0 L
STA 18+16 w 00
DOUBLE LOG DROP ROCK A-VANE ELEV 157.63 4_ Q z o w
- STA 17+33 STA ' 7+6 O cwi� w
ELEV 159.73 ELEV 159.05 DOUBLE LOG DROP TYPICAL LEFT MEANDER CROSS BRUSH TOE \ Y w CC
162 / \ROCK
18+23 OCK A-VANE 162
_ CROCK A-VANE ELEV. 157.10 TA 18+53 SECTION
��� cc cc LL
:I,.- STA 17+73 V 156.35 EXISTING GRADE ALONG DOUBLE LOG DROP J
` EL V. 158. 1 ROCK A-VANE STREAM CENTERLINE
..1, STA 18+�
i% i' ,
' �� I LOG TOE PROTECTION
i I ELEV. 15..82 DOUBLE LOG DRIP saimme
159 '� ROCK A- ANE STA 19+23 159
I v
,, cn
I NEM. STA 18+:3 ELEV 154.26 LOG SILL Q zo
I1 / 7������ ELE . 15 .28
Z �
LOG GRADE CONTROL LLl
41 DOUBLE LOG DROP LOG SILL J D
-� �,�1 .��.� S A 19+28 STA 20+26 Z 0 O
_ �A i A ROCK A-VANE CC
156 -> 1 E EV. 153.74 ELEV 152.45 ST/�21+02 156 LOG VANE - - 3 0 Q
_co I •
' / \ ELE 151.80 it LU U 0
1g ��
�; > �' .� 4�;� rrnpilkir------
IRICK A-VANE LOG J-HOOK - LIJ CV
I- I- z z
1.
-ram W-w co C-La-°°-°o° n ,-o `4 i 1 - S A21+06 b -I CC ccv N o '� J i I , EV. 151.30 em/o, z m wrn ui W > `� > I J )',;: ���� ,� ,� RIFFLE GRADE CONTROL 'ir j• A m w <153 `� Lo
M .--+ W-W-J ->-W �, v• I 'W r! I 153 �,: � c!) c�W W o J CO I . �pt 1� \ Q >L- O
Q N- co O) W W �Y ,_�� Z O >-
+ co+ n `n + w J ,_ BRUSH BED SILL LU
Q H V co. CO pp M- > - -
H H co co v rn o _o > W
• w
+ > ���f%��. LLI D W J
-0+_00 W J W c-m I �.- i i. WBC �
-< Q Q o W M m chi v M �/ / `... ... 0 O
Q Q O I 0 H C7
I- cn < Cr 4 �.- (� U cn o
iiip '_ _-L FLOODPLAIN SILL z Q Q
CO CO H N + > >
150co - >->.-W-W -> _ I I . �W .a.��. 150r. CC Q
,-
co Q W J W W W W W o o coO d) N N ` O O
I- Q W W co J J W r� M o o rn
H O) O W W N-N Lo-to_co N c0 • C cl` I ^ z Lu
u) u) N M 4 N c() N Lo in > nj CO FA ON � N• M V CO p O O
✓ O) + e2 h co > > > N N ( W N d7 w I..L Z LLI U cc w CO
CO CO > > J J _ W _ij > > ao N r
a+ CO• Q Q CO 0) ,- W W WO W J W W W W W W > > W M W L > > 7-7? - i--
Q Q LT) Q cD v, -. w o N W w W W o ,(N J > > W W `- > m I th
H H cn Q H N co W J W W J J Wo
cn v�• H-Q cn > ,-
COm Z 0 H N o o°
147 �- ���-�- -v- N- W-W- N- -�-J- W-w-W-W-J00-� 0 147 C'3 �;
NI+ co O) co + + CO V O Lo L>LJ W W W Tr M J J W M d 0 V co
M 0 Z '
- - Q Q rn-PE o + --� O M o-W-W-M-cb-�_CO-(0-o-� rn 6 o > > 7 Oi `r - Z J
< H H-= Q-Q-rn-o -+-+- N- o d-+ 0 cy) W W �- Lt.l W CC Z m
U) ( co co H u) 0) Q Q H I- N N Q W 4 Q O + N N r W 0 J W W W W > W CC M Q O O
fn H H co 0) Q Q 1- LC)W-M I- N N < Q +p +O-N W w O J W W o 0 < o_ 2
-co U)-�- ^O Q-(ni H 1- in CO < < I- CO O M O N W Wco
CO CD
N_� • 1
co
+ -N + +
144 a U) N N < N-_ 144
H H N N
- U)-U H <-r
CO H
DRAWING NUMBER:
141 141
S7
140 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 140
17+10 17+50 18+00 18+50 19+00 19+50 20+00 20+50 21+00 21+50 21+80
SCALE: HOR 1"=30'; VERT 1"=3'
\

J,.J NOTES:
i.
1. IN GENERAL,STREAM CONSTRUCTION SHALL PROCEED FROM AN UPSTREAM TO
DOWNSTREAM DIRECTION.
2. ALL EXCAVATED MATERIAL MUST BE PLACED WITHIN DESIGNATED STOCKPILE AREAS.
5.3
► 3. ALL IMPERVIOUS DIKES AND BYPASS PUMPING EQUIPMENT SHALL BE MODIFIED AT THE
DWIGHT B.YOUNGBLOOD,JR.DB 1.4 1.25 END OF EACH DAY TO RESTORE NORMAL FLOW BACK TO THE CHANNEL.
1232,PG 766 ►
4. CONTRACTOR SHALL NOT COMPACT SOIL AROUND ROOTS OR TREES TO REMAIN,AND
j BANKFULL STAGE SHALL NOT DAMAGE SUCH TREES IN ANY WAY. EXCAVATED OR OTHER MATERIAL
SHALL NOT BE PLACED, PILED OR STORED WITHIN THE CRITICAL ROOT ZONE AREA OF
/ 1- \ / THE TREES TO BE SAVED.
0 / /� / 0i
7 5. UNLESS NOTED OTHERWISE, FILL MATERIAL GENERATED FROM CHANNEL EXCAVATION _I// / / _ AND STABILIZATION SHALL BE PLACED INSIDE THE EXISTING CHANNEL TO BE
/ / / c./ ABANDONED AT AN ELEVATION THAT PROVIDES POSITIVE DRAINAGE TOWARDS THE
/�/ / // / / PROPOSED CHANNEL.
/// / - 6. REMOVE AND STOCKPILE GRAVEL SUBSTRATE LOCATED WITHIN EXISTING CHANNELS.
// /// / _ i TYPICAL SHALLOW CROSS SECTION THIS MATERIAL SHALL BE INSTALLED ON THE PROPOSED BED OF SHALLOW CHANNEL
/ / �� / \ �_ - - / SECTIONS AND SHALL BE AT LEAST 6 INCHES DEEP WITH A MAXIMUM D50 OF 17mm FOR
/ / / / / - - FILL EXISTING CHANNEL / 5.4 REACH YB2-B. IF SUITABLE NATIVE GRAVEL SUBSTRATE IS NOT AVAILABLE THEN A MIX
/, / 4r / - / SEE DWG D2 - -__ \ OF#57 GRAVEL(20%),SURGE STONE(20%),AND NATIVE MATERIALS(50%)IS TO BE
77 / I ... .d:r' ... \ \ -0 / 1.3 2.8 1.3
USED FOR REACH YB2-B.
_ 4 �"� 7. IN-STREAM STRUCTURES PROPOSED ALONG THE OUTSIDE OF MEANDER BENDS
/ // ��- 2,-.........
�- / BANKFULL STAGE
/ / e�� / (BRUSH TOES,LOG VANES, ROOT WADS,AND LOG TOES)MAY BE USED
/ / / /j/ / �\ '.S \\ / / INTERCHANGEABLY THROUGHOUT THE PROJECT PER APPROVAL FROM DESIGNER.
_ \
-
�i�� �� _� ,,,..,
- / J
___-„.
i ,.. , , ,• ./ Of.9
/ s N - -
XS-06LPri:i
/ \ � i cO
-41 �.
. �- �It
+ LEGEND
0 j ,, "'✓ \ \ \ ��I '.i. W AS-BUILT IN-STREAM STRUCTURE
;: f° 0.2 t
:\ ��--;, •=' 1 / - - \ \u ;�',�' 26+ �, TYPICAL POOL CROSS SECTION AS-BUILT CROSS SECTION • •
/jam 5?..-1 - u -v-A--....- \ \ \ AS BUILT CHANNEL LIMITS
v� / \ EXISTING CONTOUR MAJOR
06RP> \ / \� ` �� FULL SCALE: 1"=30
\ \ / // /j V \\\=` \ � � \ \ \ \ \ `\\\ 5.4 EXISTING CONTOUR MINOR
\ /-/ / Q / REACH Y B2-B \ \ \ \ \ 3.2 1.2 _50)
2" - FULL SCALE
- // P1 RESTORATION \\ \ \ ��1F� PROPOSED CONTOUR MAJOR ��I` 1" - HALF SCALE
\\ / i - (STA. 13+20 TO 26+70) \ \\ \ \ \ \ \ \ -v� BANKFULL STAGE PROPOSED CONTOUR MINOR
`� /j' \ \\ \ \ \ \` EXISTING WETLAND O�
\ \ // EXISTING TOP OF BANK - - - - TB 0 N
t
\_ 1.1 r
\ \ " EXISTING BOTTOM OF BANK - - - - BBJI- j
• � �/ 0_
/ PROPOSED CENTERLINE OF
i
i DWIGHT B.YOUNGBLOOD,JR.DB CHANNEL
1908,PG 697 PB 55,PG 230-235 EXISTING FENCELINE - - - - X
.------- TYPICAL RIGHT MEANDER CROSS SECTION EXISTING TREELINE
5.4 PROPOSED TOP OF BANK - -
1.2 3.2 LIMITS OF PROPOSED
DWI1NZ B.. NNGGB LOOD, I r ► CONSERVATION EASEMENT L�
\ \ 190PG 2�Q-935 55, r • LVE J
I r~ BANKFULL STAGE PROPOSED CHANNEL PLUG A O
Z
PROPOSED FILL AREA � � 0 0
LU
a
1.1
DOUBLE LOG DROP DIFFUSE FLOW STRUCTURE a_U CI
_ w
I � �
STA 21+85 ROCK A-VANE wOw w
153 ELEV. ',50.18 STA 22+25 153 Q
ELEV 148.83 p Q r
BRUSH TOE
DOUBLE LCG DROP TYPICAL LEFT MEANDER CROSS
ROCK A-VANE EXISTING GRADE ALONG ROCK A- ANE a > _1 CC
STA 2149. SECTION w w o
- 149.6' STA 22+29 DOUBLE LOG DROP STREAM CENTERLINE STA 24+ 7 � cc cc u_
ELEV. 148.3' STA 22+52 ELE 14 .09 DOUBLE LOG DROP
1.
150 Killf \ ELEV. 147.60 ROCK A-VANE
STA 22+92 ROCK k-VANE 150
�;1, h \ Q♦ DOUBLE LOG DROP ELEV 146.27 DOUBLE LOG DROP - S A 24 43 LOG TOE PROTECTION SIIIMMIla
c 1 4 I
I Immo
i /��` STA 22+56 STA 23+77 E EV. 142.57
Q O
t_��� :LEV 147.0 1 ROCK/,-VANE r ELEV. 144.6I 'OC A-VANE LOG SILL w
1� _ STA 22-98 .TA .4+48cf) Z
D UBLE LOG DROP LEV 142.00 LOG GRADE CONTROL W
_ -
, y
\ " 11 ��'' ` \ ELEV. 145.74
147 N _ ai i 1/' ' _ -S A 23+80 147 z p o
co Cr) IIIIIN 71- v ! _ _ E EV 144.0' D o UBLE LOG DROP - - J ¢ �'
I ' ` S A 24+83 (� z r`
> I I LOG VANE 3 Q o
LU
> > J o ,I DOUBLE LOG DROP �y 0 cfl
W
w v -� �.,_ ,'I- E EV. 141.24 r STA 25+33 OCK A-VANE YV i c�
W U)-
> I� ELEV. 139.84 16 TA 2�+77 LOG J-HOOK - 1- z z
cc
rn M + w w J "' J! DOUBLE LOS DROP LEV 138.46 b J °C =
144 + N--J-J--W o - ►z, 144 N ->
+ N w C0 Illm I:
N N < o o ` iy \ � S A 24+87 �� �_�� Z m w L
CC
H co W cri w > > of \ I ��, E EV 140.66 DOUBLE LOG DROP ROCK A-VANE RIFFLE GRADE CONTROL ��: ��'A m W
co H
up -+ + N J w W 6 v co J -I -STA 25+37 STA 25+82 Q } 12 o
N < 53 , 1
N Q M Wo M �_ co vfl �,1 �- ELEV 139.26 ELE . 137.95 U o
C.
. > ,_ C) N- In
141 N N w w w � _ I„\ - RO K A VANE 141 O CC Cn 0
CO co co+ + N w w w > > w cocO c`nn. I BRUSH BED SILL `.••.!�oo, W D p
Cci
Q N --W_�-W_w_W_�-_M-_w-w--wcsj- a, i ^ ST' 25+85 .•°..•:: U ~ ~
u) `� w o W W W `�+� M rn > W 1 1■I■iI� - .� EL:V. 137.42 .'- U U z o
�, rn co N N -� + w > J i �A� FLOODPLAIN SILL Z Q O z Q
oi N cV + + M J W W �i �!:I p I-
O Q O N H N N Q V W N O ■ M I M��� ��i�� _ ~ Z WcD
1 - N U) M M M Cn fA < -Q- c co o ..11I , CL (n o cD
Q Q Q Q co+ o - > , �11\ w O Z J cc co
m
138 N + N W_ _�
w-Co-Cn N > >_ CM o i ', 138 I
Q N 1- _, W w -N- O o La 00 ! IZ p I- 2 0 N
H Q co W W Oi Oi v �a M I Z H .1-
c') o)
cn
~ o w w M > I- C7 Uj , rn
. + W w i j W > N u00i W z CAW W
N N N W W p W Oco
-
co
CC
CL
Q CO O W CO
; cci
W > Q 0 0
Q Q N. V M W O
cn cI- ~n rn �' �+ rn + W > J o Q 0_ 2
135 • _�-N-N -+-N -1W w �, O 135 `
co
Q▪ Q H r- N < CO O CI U)Ico a O cocc) C0 (fl co
+ co
co co
00
co co N > W >
Q N I- w J W W W-
U) N CO 0')
W CO W W
f`- E N N-�
132 - 132
o N o N DRAWING NUMBER:
(N < < (0
H
N_
H Cn U) H
130 V VI I
V I
V V V V V 1-V V 130 S8
21+80 22+00 22+50 23+00 23+50 24+00 24+50 25+00 25+50 26+00 26+30
SCALE: HOR 1"=30'; VERT 1"=3'

360o Glenwood Avenue,Suite ioo
6 r es
Raleigh,NC 27612
Corporate Headquarters
6575 West Loop South,Suite 300
Bellaire,TX 77401
Main:713.520.5400
March 25,2021
Sam Dailey
USACE—Regulatory Division
3331 Heritage Trade Drive, Suite 105
Wake Forest,NC 27587
RE: Poplar Creek(SAW-2016-01985) Stream Mitigation Site—Year 2 Monitoring Adaptive
Management Memo
Dear Ms. Dailey,
Thank you for the comments in response to the Poplar Creek(SAW-2016-01985) Stream Mitigation Site—
Year 2 Monitoring Adaptive Management Memo. Below are our responses to comments and the updated
Adaptive Management Plan addressing those comments.
1) DWR is concerned that this is the second year of structure and bank stability issues onsite. During
the initial as-built site walk, DWR noted that many of the log structures were installed without
footer logs. Was this the case with the structures proposed for repair? For the bank erosion and
brush toe repairs not associated with log structures,what factors were identified in contributing to
the instability?
RES understands the concern and is committed to ensuring the future stability and structure issues
are resolved. Observed log toe failures were behind the logs and these areas will be back filled and
capped with a soil lift and livestakes. RES footers are not proposed on the log toe repairs.
Causes of bank erosion has been attributed to a late livestake installation,point bars slightly higher
than the outside of meanders pushing flow onto the outside bend,concentrated floodplain flow onto
bank protection,and lack of properly keying in of brush toes.
2) DWR is also concerned with the potential soil compaction and vegetation disturbance in the newly
restored riparian buffer from construction equipment.Please provide a brief plan on how the stream
repair areas will be accessed in order to minimize buffer impacts and how disturbed areas will be
restored.
RES intends to minimize soil compaction and vegetation disturbance in the newly restored buffer
as much as possible. In response to both DWR's concern and USACE's concern in comment 5 and
6 the potential limit of disturbance with the access areas is included in the Figures below. The
access areas have been developed with the goal to minimize buffer impacts and have been walked
with the construction superintendent to ensure our goals of minimal impact are aligned. The
disturbed areas will be restored by reseeding with a combination of temporary and permanent seed
mix and then planting bare root trees and livestakes where necessary.
3) Area 10 specific comment,DWR questions whether the application of bentonite would inhibit the
rooting of proposed live cuttings. Can more detail please be provided on where and how bentonite
is proposed for use.
Area 10 has been revised to call for the installation of a new log toe and no longer using bentonite.
res.us

4) Minor comment, the cover letter notes attachment of the 401 authorization, but the 401 approval
letter was not included in the submittal.
Apologies,the 401 approval letter is now included.
USACE(Casey Haywood):
5) It would be helpful if RES could provide a more complete AMP that discusses the cause(s) of the
failures, and provide a more detailed description of how the failures will be addressed. It would
also be important to identify access areas for the repairs and discuss how impacts to the buffer will
be minimized if construction equipment is being used.
Additional details on our best guess as the causes of the failures as well as additional descriptions
of how the failures will be addressed were added to the Adaptive Management Plan and design
sheets with additional details were also provided. We provided the access area locations in the
Figures with the goal to minimize buffer impacts.
6) Providing a design sheet that shows repairs and access areas is recommended.A few photos of the
failures for reference would also be helpful.
Design sheet and photos have been added for reference. To provide an overview of the access area
and show the entirety of it,the limits of disturbance has been provided in the figures.
7) In the AMP,RES stated that after the maintenance activities were complete,planted areas that were
heavily disturbed would be replanted-Does RES anticipate that more than 20%of the site will need
to be replanted due to maintenance? Will the species used in the replanting match the original
planting list? It is recommended that an additional vegetation plot is established in the disturbed
area to help monitor success.
RES does not anticipate more than 20% of the site will need to be replanted due to maintenance.
based on the plans only 4.5%of the site could be impacted,as the limit of disturbance is about 0.54
acres. To the extent practical the construction team plans to avoid the more established trees onsite.
We intend to plant three species from the original planting list: American sycamore, willow oak,
and swamp chestnut oak. Additionally, due to availability of trees harvested this year, we would
like to propose adding an extra species: common buttonbush. We believe this species will do well
at the site and is a native species in the piedmont alluvial forest which is the targeted community
for this site.Per recommendations,RES will add a random vegetation plot in the disturbed areas to
help monitor success of the disturbed areas.
2

0
Poplar Creek Year 2 Adaptive Management Plan
During Year 1 (2020)monitoring activities performed September 2020,RES observed a number of failing
log toe structures and areas of bank erosion on YB1-C and a few bank erosion areas on YB2-B (see
Figures). The log toes were from the original construction and were functioning properly during the as-
built repairs that occurred in the winter of 2019/2020. However,they begun to show signs of failing in the
late summer, early fall of 2020. The failing log toes and bank erosion areas will be repaired with a
combination of minor bank grading, coir matting, livestake installation, sod mats, coir logs, and/or brush
toes. RES engineers visited the site in January 2021 and compiled a list of 15 structures/areas that needed
some form of repair. These repair areas are outlined below and correspond by number with the attached
maps. After maintenance activities are completed, planted areas that were heavily disturbed will be
replanted. Upon approval of this plan,RES would like to conduct these maintenance activities in March or
April of 2021.
Outside of this adaptive management plan, other maintenance activities that will be conducted this year
include the replanting of the 0.77-acre area in and around VP4 during the dormant season and continued
invasive treatments with aquatic safe herbicide in the YB2-A channel.
YB1-C
Area 1
Issue: Erosion behind a log toe structure.
Cause: Livestake mortality.
Treatment:Backfill the eroded area with a straw bale and cap the area with matted soil lift and live cuttings.
Area 2
Issue: Erosion behind a log toe structure.
Cause: Livestake mortality.
Treatment: Backfill area eroding away with rock, cap with matted soil lift and live cuttings.
Area 3
Issue: Brush toe washed out.
Cause: Inadequate brush toe key-in.
Treatment: Grade bank back,mat,and livestake.
Area 4
Issue: Bank erosion.
Cause: Point bar grading slightly higher elevation than outside meander.
Treatment: Grade point bar to allow for more flow through channel and livestake and mat graded area.
Area 5
Issue: Brush toe washed out.
Cause: Inadequate brush toe key-in.
Treatment: Replace brush toe. Cap with soil lift and live cuttings.
Area 6
Issue: Damaged log toe.
Cause: Improper installation.
Treatment: Replace with brush toe. Cap with soil lift and live cuttings.
3

Area 7
Issue: Brush toe washed out.
Cause: Inadequate brush toe key-in.
Treatment: Grade bank back,mat, and livestake.
Area 8
Issue: Damaged log toe and bank erosion.
Cause: Improper installation and grading point bar at a higher elevation than outside meander.
Treatment: Grade point bar,mat and livestake. Replace log toe with a shorter log to widen pool. Backfill
with Class B/I rock. Cap with matted soil lift and live cuttings.
Area 9
Issue: Bank erosion and damaged log toe.
Cause: Improper installation and grading point bar at a higher elevation than outside meander.
Treatment: Grade point bar,mat and livestake. Replace log toe with brush toe. Cap with soil lift and live
cuttings.
Area 10
Issue: Bank erosion around log sill.
Cause: Lack of compaction on log sill backfill and livestake mortality
Treatment: Install new log toe.
Area 11
Issue: Bank erosion.
Cause: Lack of compaction on log sill backfill and livestake mortality.
Treatment: Notch the left side of the log sill. Rebuild bank with Class B/I rock. Cap with matted soil lift
and live cuttings.
Area 12
Issue: Bank erosion.
Cause: Livestake mortality.
Treatment: Grade point bar,mat and livestake.
Area 13
Issue: Bank erosion.
Cause: Wrong angle on log sill.
Treatment: Notch the left side of the log sill. Add brush toe. Cap with matted soil lift and live cuttings.
4

0
YB2-B
Area 14
Issue: Bank erosion.
Cause: Lack of compaction on log sill backfill.
Treatment: Rebuild bank with Class B/I rock. Cap with matted soil lift and live cuttings.
Area 15
Issue: Bank erosion.
Cause: Improper key in of log sill.
Treatment: Key in grade control a minimum of 5 feet into the bank.
The approved Erosion and Sediment Control(ESC)permit from the original construction remains open and
should permit for the work that is required if needed and is attached. Regarding 401/404 permitting, RES
believes that the proposed work falls within the treatment outlined in the approved Final Mitigation Plan
which has not expired at this time. The original 404/401 authorizations from the approved mitigation plan
are also attached.
Example photos:
",°, 1,-; '',\'''- "': n,,,-,,,,, ,` ,,, ' ' ' , ', ,. - IgIF . , ., -k•-;•?* ,-, _.,--.',.-ii5,,:::::,, ' :,1=4,1„,'.„ --,,,,.,
-': eat /s
1104.
-,, N;it . -. r,-�� i',e> -f -"m„-,
- , ,.ems { 1. � r .... 'b mot•, -.
G w�aJ .4h
Area 15 Bank erosion. Area 6 Damaged log toe.
Thank you,
lecie.o.frix___/(jek,),;(_,
Ryan Medric I Ecologist
5

From: Davis,Erin B
To: Baker,Caroline D
Subject: FW: [External]FW:SAW-2016-01985/EBX-Neuse I, LLC/Neu-Con UMBI/Poplar Creek Construction Complete
Date: Monday,November 1,2021 10:55:34 AM
Attachments: SAW-2016-01985 Poplar Creek Mitigation Bank Construction Complete 04232021.pdf
Laserfiche Upload:Email&Attachment
DWR#:20160979 v.1
Doc Type:Mitigation Remediation Plans
Original Message
From:Dailey,Samantha J CIV USARMY CESAW(USA) [mailto:[e-mail]]
Sent:Tuesday,May 4,2021 10:16 AM
To:Tugwell,Todd J CIV USARMY CESAW(US)<[e-mail]>;Kim Browning
<[e-mail]>;Haywood,Casey M CIV(USA)
<[e-mail]>;Davis,Erin B<[e-mail]>;Wilson,Travis W.
<[e-mail]>
Subject: [External]FW: SAW-2016-01985/EBX-Neuse I,LLC/Neu-Con UMBI/Poplar Creek Construction
Complete
CAUTION:External email.Do not click links or open attachments unless you verify. Send all suspicious email as
an attachment to Report Spam.<mailto:report.spamnanc.gov>
Good morning,
Please reference Jamey's email below regarding implementation of the AMP for the Poplar Creek Mitigation Site,
along with the Year 1 credit release(which I sent out back on November 3rd,prior to the AMP).I would like to get
out on-site to review the AMP area,specifically.Please let me know if you have any desire to attend and I will put
out some dates;otherwise,I'm going to schedule within the coming weeks.
Best Regards,
Sam
Samantha Dailey
Regulatory Project Manager
U.S.Army Corps of Engineers
Regulatory Division
3331 Heritage Trade Drive,Suite 105
Wake Forest,NC 27587
[phone],Ext.22
[e-mail]
Original Message
From:Jamey Mceachran<[e-mail]>
Sent:Friday,April 23,2021 3:42 PM
To:Dailey,Samantha J CIV USARMY CESAW(USA)<[e-mail]>
Cc:Bradley Breslow<[e-mail]>;Ryan Medric<[e-mail]>
Subject: [Non-DoD Source] SAW-2016-01985/EBX-Neuse I,LLC/Neu-Con UMBI/Poplar Creek Construction
Complete
Good afternoon Sam!
RES is pleased to submit the construction complete memo for the Neu-Con UMBI Poplar Creek Mitigation Project

that documents through photographs the completion of work that was committed to in the Adaptive Management
Plan provided to the IRT.As we have discussed,I would assume that a site visit will need to follow to see the site
before a credit release can be provided. Upon conclusion of the site visit we hope we can receive the Year 1
Monitoring Report Approval Credit Release in the amount of 392.60 SMUs.
We look forward to scheduling the site visit and walking through the completed maintenance work with you all.
Please let me know if there are any comments or questions following review of the memo.
Have a great weekend,
Jamey
Jamey Redding McEachran
Ecology Team Lead
RES 1 res.us<Blockedhttp://www.res.us/>
Mobile: [phone]