HomeMy WebLinkAbout20140090 Ver 8_U-2579B UT to Fisher Branch - Year 3 Report_20210222 Channel Mitigation Monitoring Sheets I,H,III,AND IV
Monitoring Data Record
Project Title: U-2579B COE Action ID: SAW-2008-03183
Stream Name: UT to Fisher Branch—Permit Site 20 DWR Number: 2014-0090v2
City, County and other Location Information: The mitigation site is located on the Winston-
Salem Northern Beltway Eastern Section just south of Hastings Mill Rd.
Date Construction Completed: Streambank reforestation completed on March 1, 2018
Monitoring Year: ( 3 ) of 5
Ecoregion: Southern Outer Piedmont 8 digit HUC unit 03040101
USGS Quad Name and Coordinates: Winston-Salem East 36.100238°, -80.135216'
Rosgen Classification:
Length of Project: 490 linear feet
Urban or Rural: Rural Watershed Size: 0.14 sq. miles
Monitoring DATA collected by: M. Green and M. Ingram
Date: 8-25-20
Applicant Information:
Name: NCDOT Roadside Environmental Unit
Address: 1425 Rock Quarry Road Raleigh, NC 27610
Telephone Number: (919) 615-6733 Email address: ml rg eengncdot.gov
Consultant Information:
Name:
Address:
Telephone Number: Email address:
Project Status: Complete
Monitoring Level required by COE and DWR(404 permit/401 Cert.): Level
Mitigation Plan States
5.0 Performance Standards
Success for vegetation monitoring within the riparian buffer areas are based on the survival of
at least 260 stems of five-year-old trees at year five. Assessment of channel stability will be
based on the survival of riparian vegetation and lack of bank erosion, channel widening or
down-cutting.
6.0 Monitoring Requirements
All the mitigation sites will be monitored according to the April 2003 Stream Mitigation
Guidelines. The following components of Level 1 monitoring will be performed each year of
the 5-year monitoring period: reference photos, plant survival (i.e., identify specific problem
areas (missing, stressed, damaged or dead plantings), estimated causes and proposed/required
remedial action; visual inspection of channel stability. Physical measurements of channel
stability/morphology will not be performed. A monitoring report will be submitted within 60
days after completing the monitoring.
Section 1. PHOTO REFERENCE SITES
(Monitoring at all levels must complete this section)
Total number of reference photo locations at this site: A total of 6 photos were taken
from 3 photo point locations and 1 additional overview photo of the site.
Dates reference photos have been taken at this site: 8-14-18, 8-29-19, 8-25-20
Individual from whom additional photos can be obtained (name, address, phone):
Other Information relative to site photo reference: A site map is included with this report showing the
photo point locations.
Section 2. PLANT SURVIVAL
Attach plan sheet indicating reference photos.
Identify specific problem areas (missing, stressed, damaged or dead plantings):
Planted vegetation is lacking upstream of PP#1 and also a small area within the left buffer
at PP#3.
Estimated causes, and proposed/required remedial action: A supplemental planting is
scheduled for these areas in the 2020-2021 planting window. See attached map of
supplemental planting areas.
ADDITIONAL COMMENTS:
March 2018: Streambank reforestation was completed
August 2018: Year 1 Monitoring noted Black Willow and Silky Dogwood live stakes were
surviving along the streambank. The site has 680 trees per acre surviving for Year 1.
August 2019: Year 2 Monitoring noted Black Willow and Silky Dogwood live stakes were
surviving along the streambank. The site has 680 trees per acre surviving for Year 2.
August 2020: Year 3 monitoring noted planted vegetation survival was good, except for,
the areas noted above. Vegetation Plot #1 had 663 trees per acre surviving for Year 3.
Other vegetation noted onsite included buttonbush, volunteer sycamore, iewelweed, cattail,
sweetgum, Sazittaria sy., red maple, woolgrass, and various grasses.
NCDOT will continue to monitor the planted vegetation in 2021.
October 2020: Regulatory Agency review held onsite with NCDOT
If required to complete Level 1 and Level 2 monitoring only stop here; otherwise,
complete section 3.
c�
M
Cj 0 4-�
O
a v A
1 8 281 2 1 391 401 663
Year 3 Average Density
(Trees/Acre) 663
Year 2 Average Density
(Trees/Acre) 680
Year 1 Average Density
(Trees/Acre) 680
Section 3. CHANNEL STABILITY
Visual Inspection: The entire stream project as well as each in-stream structure and bank
stabilization/revetment structure must be evaluated and problems addressed.
Report on the visual inspection of channel stability. Physical measurements of channel
stability/morphology will not be required. Include a discussion of any deviations from as-built
and an evaluation of the significance of these deviations and whether they are indicative of a
stabilizing or destabilizing situation.
The UT to Fisher Branch onsite stream mitigation site is stable for the Year 3 evaluation from
just downstream of PP#1 to the inlet of the box culvert. There are portions of the stream from
the be ig nning of the site to just downstream of PP#1 where the banks are eroding and sloughing
off. Some sections of the channel have started to form a new bankfull bench and are stabilizing.
A supplemental planting is schedule, as mentioned in Section 2 of this report for these areas
where erosion is occurring and planted vegetation is lacking. NCDOT will continue to monitor
channel stability at the UT to Fisher Branch Mitigation Site in 2021.
Date Station Station Station Station Station
Inspected Number Number Number Number Number
Structure
Type
Is water
piping
through or
around
structure?
Head cut or
down cut
resent?
Bank or scour
erosion
resent?
Other
problems
noted?
Bankfull Wrack line Wrack line
event 8-14-18 8-25-20
Section 4.DEBIT LEDGER
The entire UT to Fisher Branch stream mitigation site was used at a 1:1 ratio for the U-2579B
project to compensate for unavoidable stream impacts.
UT to Fisher Branch Mitigation Site
IS
. a
� _�.a�.t .xr#i-.•" ,�' � � - �Y�� Via- � � th �F.
PP#1 Upstream PP#1 Downstream
< J4•,. f ..y, v �wr
' aRr
1
a
jc arfl�' `�_���>T'HS� ro-` a..,\ ,�,t A�'�t"r'{`r"` I„d A-f'� aj. .; ;� .a•.. "
PP#2 Upstream PP #2 Downstream
it
uy�
e
Ih��av�
PP#3 Upstream PP#3 Downstream
August 2020
UT to Fisher Branch Mitigation Site
7
1
Bank erosion upstream of PP#1 Bank erosion upstream of PP#1
r4
c
-a b
Overview photo looking upstream from roadway project
August 2020
- 7 ^s u-ssnpe 7 iaa&M-s.a 1
tJ—2574B SITE :�20
AS—BUILT PLANS ;.
WITH AERIAL `d
ROCK SILK.
.•-� a f375.J' ELEVATION ,.
CONSTRUCTED RIFFLE
CONG'RET£ SILL IN 72" PIPE
J 1
85 .$r ELEVATION
F
I'l
:FE l
1
b ,
VEGETATION
PHOTO POI
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N �
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li_5lJ 'fit' 1'f{[3Ji:[;l' L'-2�;9ti ',';
F••-r•I �4s� a rr�� F•»o,' n _ NtY;L.'I� 121' t'HOjEuf [;
L L'Ui SY:Ai 691+.JZ:9N ��Ea.;:.,ati�
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Site Map
i
.f
The U-2579B Site 20 Teplanting area
measured approximately 6.16 aa"es_ T� 5 '- IT
complete the replanting the contractor will AS'Bill_
need approximately 220litire stakes[2 rows WITH AEfl� l.
of`ive stakes plarrt�d on h�th sides of the -
strearn on 4 ft.centers and 100 bareroot r ROCK Sk�'
seedlings(planted on 8 ft. centers)_ See at
orange shaded areas showing the areas that c &IFOUE:�
need rep ant•ing.
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fi �1{i4 r, n r:r' 1�1 � f71iA'f G-25. 'f r
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Supplemental Planting Map
to
Fisher _ �• ,1 N;f j ; -� T«- Legend
U-2579B UT
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y U-25796,1JT to Fisher Branch
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