20081100 Ver 1_2011 Monitoring Report_20120119

Strickland, Bev
From: Homewood, Sue
Sent: Thursday, January 19, 2012 9:23 AM
To: Strickland, Bev; Dennison, Laurie
Subject: FW: Gateway Gardens
Attachments: Gateway Gardens -2011 Monitoring Report MY- 01.pdf
For file 08 -1100
Sue Homewood
INC DENR Winston -Salem Regional Office
Division of Water Quality
585 Waughtown Street
Winston - Salem, INC 27107
Voice: (336) 771 -4964
FAX: [phone]
E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.
From: Becky Ward [mailto:bward(a)wce- corp.com]
Sent: Wednesday, January 18, 2012 2:10 PM
To: Homewood, Sue
Subject: RE: Gateway Gardens
Sue:
Here is the electronic file. Let me know if you need anything else.
Thanks,
Becky L. Ward, P.E.
Ward Consulting Engineers, P.C.
8368 Six Forks Road, Suite 104
Raleigh, NC 27615 -5083
Ph: 919 - 870 -0526
email: bward @wce- corp.com
From: Homewood, Sue [ mailto :sue.homewood(a)ncdenr.aov]
Sent: Tuesday, January 17, 2012 2:13 PM
To: Becky Ward
Subject: Gateway Gardens
Hi Becky,
I just got the Gateway Gardens report. If you could forward me an electronic copy, that would be great! Thanks.
Sue Homewood
INC DENR Winston -Salem Regional Office
Division of Water Quality
585 Waughtown Street

Winston - Salem, NC 27107
Voice: (336) 771 -4964
FAX: [phone]
E -mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

GAKDENS
Cultivating Growmg Together.
2011 Monitoring Report — Year 1
Data Collected: October & December 2011
Submitted: January 2012
GREENSBORO
Prepared for:
City of Greensboro
Facilities Management Division
10014 Ih Street
Greensboro, NC 27405
Phone: [phone]
Fax: [phone]
Ward Consulting Engineers, P.C. Gateway Gardens
2011 Monitoring Report — MY -01
1 January 2012

I. Executive Summary
The Greensboro Gateway Gardens project included a stream relocation of approximately
160 linear feet of Unnamed Tributary (UT) to South Buffalo Creek, located within the
Cape Fear River Basin. The NCDWQ has assigned South Buffalo Creek (Stream index
no. 16- 11 -14 -2) a classification of C NSW. The "C" classification denotes freshwaters
suitable for aquatic life propagation and survival, fishing, wildlife, secondary recreation
and agriculture. The "NSW "classification denotes nutrient sensitive waters that need
additional nutrient management. The relocated stream feeds the onsite preserved
jurisdictional wetlands. The pre - project stream classified as a E5 -05 channel and has
been restored to a C5 for the entire length.
The Greensboro Gateway Gardens Phase I stream relocation was completed in 2010. The
planting of approximately 2656 sq. ft. (0.061 ac.) was completed in the fall /winter of
2010/2011. The stream banks directly downstream of the culvert at the stream
origination varied from the designed planting plan. The stream banks were armored with
riprap for increased stability due to high potential stress and close proximity to the
adjacent sidewalk. Numerous additional small herbaceous species were planted adjacent
to the headwalls of the 60" RCP crossing headwalls.
Monitoring will occur annually for a minimum of three years and will consist of a visual
assessment of the stream stability and stream bank and buffer vegetation survivability.
The current assessment is for monitoring year 1 of 3 (MY -01). Photo points have been
established throughout the stream bank and buffer area. For each subsequent monitoring
period, photos shall be taken at the same location. If deemed necessary, recommendations
for increased monitoring, maintenance, or repair shall be made in the annual monitoring
reports.
A. Stream
The onsite relocated stream portion begins at the outlet of the AquaSwirl stormwater
treatment structure. The stream flows from the outlet for approximately 59 LF into a 60"
RCP for a length of approximately 18 LF. After the stream exits the 60" RCP, it flows for
approximately 80 LF until it runs into the jurisdictional wetlands. The stream was
constructed with four single wing rock vane structures and four constructed riffles.
Structurally, the stream is stable and functioning correctly. No evidence of bank erosion
or stream bed degradation was observed. Figure 1 shows the stream, structures and photo
point locations.
B. Vegetation
The stream bank and buffer area was evaluated for herbaceous and woody stem survival
rates. Figure 2 shows the stream and buffer monitoring area outlined with the plants
installed per the construction plans. Within the monitoring area, 236 plants were to be
installed as per the planting plan. Of those 236 plants, 32 plants were either not found or
have perished. This represents a success percentage of 86 %, which exceeds the 75%
success criteria.
Ward Consulting Engineers, P.C. Gateway Gardens
2011 Monitoring Report — MY -01
2 January 2012

C. Bankfull Events
Several bankfull events have occurred within the current monitoring year. A rainfall
event on October 12, 2011 of 1.97" produced a bankfull event that was confirmed by a
site visit conducted by City of Greensboro personnel. The following table shows a record
of all the dates during the current monitoring period in which a rainfall event of 2" or
greater.
Verification of Bankfull Events
Greensboro Gateway Gardens
Date of Occurrence
Method
Rainfall Amount
Onsite observation and comparison to NOAA
12- Oct -11
ThreadEx Station [Greensboro Area] rain data
1.97"
to determine rainfall requirements for
bankfull event
6- Sep -11
NOAA ThreadEx Station [Greensboro Area]
2.61"
23 -Sep -11
NOAA ThreadEx Station [Greensboro Area]
2.97"
16 -Nov -1 I
NOAA ThreadEx Station [Greensboro Area]
2.16"
Ward Consulting Engineers, P.C. Gateway Gardens
2011 Monitoring Report — MY -01
3 January 2012

Gateway Gardens -MY -2011 Photo Points
Photo Point 1
Photo Point 2

Photo Point 3
Photo Point 4

Photo Point 5
Photo Point 6

PP -1
�r
PP -2
00"��
o°
1X
P -4
�1►
N 1 20 10 0 20
4 V APPROXIMATE SCALE
STE
O"
MULCH
WALKWAY
\PREMANUFACTURED
SEDIMENT TRAP
CONCRETE
SIDEWALK
LEGEND:
.D TRI N �® CONSTRUCTED RIFFLE
`z a SINGLE WING ROCK VANE
�2 �2I E _ — STREAM TOP OF BANK
�' F �,r) — • • • — STREAM CENTERLINE
C` 'QF SOIL LIFT
l 9� PHOTO LOCATION AND
VIEW ORIENTATION
City of Greensboro }
Facilities Management Division
1001 nsb 4th StreeGAP�DENS-.
Greensboro, NC 27405 Phone: [phone]
Fax: [phone] , r. • . - .,
FIGURE 1
GREENSBORO GATEWAY GARDENS
MY -01 2011 MONITORING
WARD CONSULTING ENGINEERS, PC
8368 Sig Forks Rd, Suite 104
Raleigh, NC 27615
PH: (919) 870 -0526
FAX [phone]

•! 3 Leuc hoe
�� 1t11111O7P+///..
5 Spicebush
3
12 Shenendoah Switchgrass
6 Winterberry'Red Sprite',
3 Acorns'
Ruh
9 Soft
Amsonia
0 ,.3
Jill
1 \ll I
` `� r RIPRAP AREA a��
r �
3 Witchhazel (tree �
/ 1 yhlY `HaPPy Returns ", o �� ��� /`
3 Acorus 13 Amsonia
} ___. --1, 3 Ma Wolin `Royal
9 Hibiscus Texas Star
= 17Dayliiy`HappyReturns'
PLANTED STREAM BANK AND is
1nkM7Amsonia —
BUFFER
't _ 4 B FER MONITORING AREA Fern
is
3 Loropetalum'Ruby' -
86% PLANT SURVIVAL RATE
13 Sweets ire Lfttle Henry
y
8 False Cypress Flhcoides',
Redbud'Silver Cloud' _
�
� °- - � -� 6 Weigela'Wme and Roses
-
belia'Francis Marion --
_
Lawn
t
11 Soft Rush
`} -
� lawn
3 Acorus
�
-
0
'- 3 Pussy Willow (tree form),-
/
10 Indian Hawthorne
3 Red Hot Poker
16eautybush �/
C l7 7J�
18 Blue Flag 3
15 Blue Flag Iris
! O' 0
Hawthorne:
O 8 Morning Glory
< p gon'
-- - 3 Acoru 4 Catmint
6 Indian
r
j/ 6 Cardinal Flower
-
F
(- Lawn
5 Strawberry ,
' 6 Redosier Dogwood
_
10 Daylily'Happy Returns' _ _ _ _ point
i r 6� -i: 21un \Blue
7 Shene don Switchgrass -
A �ti .' - �.
12 Sweetspire ttle Henry"
5 Red Hot Poker i
/
�" �'.- ).` Iw` 5 Chocolate Mint
>� z
3 River Oats " i 4 Applemint
9 Soft Rush
f "� 3 ramid Trellis 5 r ures
a Dawn Redwood 4 - Structures
Spice'- - � \�
3 Pussy Willow (tree form)
7 Clethra'Ruby
� -� 4
� � Peppermint
3 Silky Dogwood _i ; 3 Spearmint'
Fi
3 Contorted
19 St. Johnswo
1 Silky Dogwood
5 Red Hot Po
x
City of Greensboro �-f E �( }
Facilities Management Division
1001 4th StreeGAP�DENS
Greensboro, NC 27405
Phone: 336 - 433 -7308
REEfd5B0 Fax: [phone] C4iyatiy C"wiy . T eth
PEAR
PROJE
FIGURE 2
SITE
F
GREENSBORO GATEWAY GARDENS
MY -01 2011 MONITORING
N zo io 0 20 WARD CONSULTING ENGINEERS, PC
8368 Sig Forks Rd, Suite 104
5 Raleigh, NC 27615
PH: (919) 870 -0526
APPROXIMATE SCALE FAX [phone]