HomeMy WebLinkAbout20210926 Ver 2_U-5748 General Modification September 12 2022_20220912STATE
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STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER
GOVERNOR
September 12, 2022
U.S. Army Corps of Engineers
Raleigh Regulatory Field Office
3 3 31 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Attn: Mr. Andrew Williams
NCDOT Coordinator
N.C. Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Mr. Rob Ridings
NCDOT Coordinator
J. Emc BOYETTE
SECRETARY
Subject: Modification Request for Section 404 Regional General Permit 50, Section 401 Water
Quality Certification and Neuse Riparian Buffer Authorization for Upgrade of an Existing
at -grade Intersection of US 401 at SR 2044 (Ligon Mill Road) and SR 2224 (Mitchell Mill
Road) to offset Continuous Flow Intersection from the US 401 and Leland Avenue Intersection
to theUS401 and Perry Creek Road Intersection in Wake County; TIP Number U-5 748. Debit
$570 from WBS Element 50168.1.1.
Dear Sirs:
As you are aware, the North Carolina Department of Transportation (NCDOT) applied for permits for
the subject project on November 5, 2021. The Corps of Engineers issued the Section 404 permit for the
project on January 5, 2022. The North Carolina Division of WaterResourcesissuedthe 401 Water Quality
Certification for the project on November 10, 2021 (NCDWR Project No. 20210926). This
correspondence is to request modification to Site 7 and Site 13.
Site 7: Due to constructability concerns, a drainage design revision was required to delete a deep drainage
inlet. This revision removed the pipe outlet at Site 13 and instead, directs the water to outlet at Site 7.
Due to the poor existing conditions of the channel at Site 7 and the proposed increase in drainage to this
area, rip rap channel stabilization is proposed to be added for the length of the degraded channel section.
This will result in the following changes:
• 213 linear feet increase in permanent stream impacts
• 14 linear feet increase in temporary stream impacts
• Increase of 12,526 sq ft Buffer Zone 1 impacts
• Increase of 2,541 sq ft Buffer Zone 2 impacts
Site 13: Due to constructability concerns, a drainage design revision was required to delete a deep
drainage inlet. This revision removed the pipe outlet at Site 13 and instead, directs the water to outlet at
Site 7. This will result in the following changes:
• 20 linear feet decrease in bank stabilization impacts
• 29 linear feet decrease in temporary stream impacts
• Decrease of 1,876 sq ft Buffer Zone 1 impacts
• Decrease of 792 sq ft Buffer Zone 2 impacts
MAILING ADDRESS:
NC DEPARTMENT OF TRANSPORTATION TELEPHONE: 919-707-6000 LOCATION:
ENVIRONMENTAL ANALYSIS UMT FAX: 919-212-5785 CENTURY CENTER, BUILDING A
1598 MAIL SERVICE CENTER 1000 BIRCH RIDGE DRIVE
RALEIGH NC 27699-1598 WEesITE: NCDOT. GOV RALEIGH NC, 27610-4328
Attached are the following revised permit drawings depicting the affected area, all of which have a
revision date of August 25, 2022:
• Permit Drawing 15: plan sheet 6 without contours
• Permit Drawing 16: plan sheet 6 with contours
• Permit Drawing 17: plan sheet 6 inset
• Permit Drawing 18: plan sheet 6A
• Permit Drawing 2 8 : summary table
• Buffer Drawing 5 : buffer plan sheet 6
• Buffer Drawing 8: summary table
Avoidance/Minimization
In order to eliminate the deep drainage inlet and new pipe bore extending through an existing reinforced
fill slope, both of which include constructability and future maintenance issues, drainage was revised to
outlet at Permit Site 7; stream SE. The original outlet stabilization footprint at Permit Site 7 was
determined to be insufficient for the increased drainage to this outlet. Further, the option of providing a
larger outlet stabilization structure (i.e. energy dissipator) within the existing foot print was evaluated,
however, the current condition of the channel below the original footprint was also determined to have
existing head cuts and eroded slopes, which would be worsened by the increased flow to this area.
Calculations showthat the increase in flowto this already eroded channel wouldresult in a design velocity
and shear stress too high for a vegetated channel. Therefore, the channel was determined to need rip rap
stabilization. The length of rip rap stabilization needed was limited to the extent possible where the
channel below these improvements would be able to remain stable given the increased flow to this area.
The outlet of this channel stabilization was located at a point where the existing channel fans out further
downstream and allows for a milder slope and wider base, providing better long-term stability. The rip
rap channel stabilization includes countersunk rip rap in the flow line to facilitate eventual sediment
loading and stream naturalization.
Compensatory Mitigation
Per coordination with the USACE, the 213 linear feet of stream impacts at Site 7 can be mitigated at a
1:1 ratio. NCDOT has received the appropriate additional mitigation from the N.C. Division ofMitigation
Services. The revised acceptance letter is included with this modification request.
REGULATORY APPROVALS
Section 404: NCDOT requests modification to the USACE 404 Regional General Permit 50 for the
project as required for the above -described activities.
Section 401/Riparian Buffers: We are also requesting modification of the Section 401 Water Quality
Certification and Neuse Riparian Buffer Authorization. We are providing this request to NCDW ? for
their approval. Authorization to debit the $570.00 Permit Application Fee from TIP No. U-5748/WBS
50168.1.1 is hereby given.
A copy of the permit modification and its distribution list will be posted at
https://xfer.services.ncdot.gov/pdea/PerniApps/.
If you have any questions or need additional information, please contact me at crivenbark@ncdot.gov or
919-707-6152.
Sincerely,
DocuSigned by:
M.Eck C. P'44." III
AAAD1248B309416...
Chris Rivenb ark, Eastern Team Lead
Environmental Coordination and Permitting Group
cc: NCDOT Permit Application Standard Distribution List
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
MARC RECKTENWALD
Director
NORTH CAROLINA
Environmental Quality
September 9, 2022
Mr. Jamie Lancaster, P.E.
Environmental Analysis Unit
North Carolina Department of Transportation
1598 Mail Service Center
Raleigh, North Carolina 27699-1598
Dear Mr. Lancaster:
Subject: DMS Mitigation Acceptance Letter:
U-5748, US 401 Intersection Improvements at SR 2044 (Ligon Mill Road), SR
2224 (Mitchell Mill Road) and SR 2006 (Perry Creek Road), Wake County
References: USACE 404 General Permit 50 issued January 5, 2022 (USACE Action ID
2017-00321)
NCDWR 401 Water Quality Certification issued November 10, 2021 (NCDWR
ID 2021-0926)
The purpose of this letter is to notify you that the Division of Mitigation Services (DMS) will
provide the additional mitigation for the subject project. Based on the information supplied by you on
September 8, 2022, the additional impacts are located in CU 03020201 of the Neuse River basin in the
Central Piedmont (CP) Eco-Region, and are as follows:
Table 1— Additional Impacts (feet / acres)
Neuse
Stream
Wetlands
Buffer (Sq. Ft.)
03020201
Non-
Coastal
Cp
Cold
Cool
Warm
Riparian
Riparian
Marsh
Zone 1
Zone 2
Impacts (feet/acres)
0
0
213.000
0
0
0
17,236.000
5,605.000
*NOTE: Some of the stream impacts may be proposed to be mitigated at a 1:1 mitigation ratio. See permit application for details.
This additional impact and associated mitigation needs were not projected by the NCDOT in
the 2022 impact data. DMS is currently providing buffer mitigation for the impacts associated with
this project located in cataloging unit 03020201 of the Neuse River basin as required by the 401 Water
Quality and Buffer Authorization Certifications issued in November 2021, as shown in the below table
(in mitigation credits):
AEQNorth
Carolina Department of Environmental Quality I Division of Mitigation Services
®Jl� 217 West Jones Street 1 1652 Mail Service Center I Raleigh, North Carolina 27699-1652
NUIi I H li�fi0.1NA
0"p "m&Emirtomental�uaiHy\ r 919.707,8976
Mr. Lancaster
TIP U-5748
September 9, 2022
Page Two
Table 2 — Current Permitted Impacts and Associated Mitigation Requirements provided by
DMS based on issuedpermits) and Revised Anticipated Impacts based on miti ation re uest)
Impact
tted
Total Permitted
Mitigation
Additional
Service
Impact Type
Impacts
provided by DMS
Impact (for
Total
Revised T
Area
(feet / acre / sq ft)
per Issued Permits
approval)
Impactsot
Credits
Stream
0.000
0.000
213.000
213.000
Neuse
Riparian Buffer
61,898.000
185,694.000
17,236.000
79,134.000
03020201
— Zonel
Riparian Buffer
49,525.000
74,288.000
5,605.000
55,130.000
— Zone 2
* "Total Permitted Impacts" is defined as impacts which require mitigation through NCDEQ — DMS. Impacts that require mitigation
from other sources are not included in NCDEQ — DMS's data.
**Some of the additional stream impacts may be proposed to be mitigated at a 1:1 mitigation ratio. See permit application for details.
DMS will provide the amount of mitigation as determined by the regulatory agencies.
All buffer mitigation request and approvals are administrated through the Riparian Restoration
Buffer Fund. The NCDOT will be responsible to ensure that appropriate compensation for the buffer
mitigation will be provided in the agreed upon method of fund transfer. Upon receipt of the
NCDWR's Buffer Authorization Certification, DMS will transfer funds from the NCDOT 2984 Fund
into the Riparian Restoration Buffer Fund. Upon completion of the transfer payment, NCDOT will
have completed its additional riparian buffer mitigation responsibility for TIP U-5748 in Wake County.
DMS commits to implementing additional sufficient compensatory stream mitigation credits to
offset the additional impacts associated with this project as determined by the regulatory agencies
using the delivery timeline listed in Section F.3.c.iii of the In -Lieu Fee Instrument dated July 28, 2010.
If the above referenced impact amounts are revised, then this mitigation acceptance letter will no
longer be valid and a new mitigation acceptance letter will be required from DMS.
If you have any questions or need additional information, please contact Ms. Beth Harmon at
919-707-8420.
Sincerely,
for James B. Stanfill
DMS Deputy Director
cc: Mr. Monte Matthews, USACE — Raleigh Regulatory Field Office
Ms. Amy Chapman, Division of Water Resources, Wetlands/401 Unit
File: U-5748 Mod
D EQ
w - North Carolina Department of Environmental Quality I Division of Mitigation Services
217 West Jones Street 1 1652 Mail Service Center I Raleigh, North Carolina 27699-1652
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B= a Ff. O.O% To 2.0% 20' Over 4.0% To 6.0% 40' b= 5 Ft. STA. 54+80 LT ��9
Type of Liner- Class IRip-RaP ',! y F�� Over 2.0% To 4.U% 30' Over 6.0% 50' TYPe of Liner= Class BRip-Rap { . - f I -/ j - - J �,-_- FOR -Y2- PROFILE, SEE SHEET NO. 18
GRAPHIC SCALE \ \ `1 \ �� ��— FROM -L- STA. 42+85 RT TO -L- STA. 44+80 RT -� -L- Sta. 53+96 'FROM -L-_STA. 53+37 T TO -L- STA. 58+00 RT ( FROM -L- STA. 52+80 IT TO -L- STA. 54+77 LT j^/ / / FOR-DRIVE2- PROFILE, SEE SHEET NO. 21
\ \ \ \ izo� J -L/STA. 57+02 I .� (� w �� rye �� ( /' r� r f `Ji f �. FOR -0RIVE4- PROFILE, SEE SHEET NO. 22
ubmitte
WETLAND AND SURACE WATER IMPACTS SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Site
No.
Station
(From/To)
Structure
Size / Type
Permanent
Fill In
Wetlands
(ac)
Temp.
Fill In
Wetlands
(ac)
Excavation
in
Wetlands
(ac)
Mechanized
Clearing
in Wetlands
(ac)
Hand
Clearing
in
Wetlands
(ac)
Permanent
SW
impacts
(ac)
Temp.
SW
impacts
(ac)
Existing
Channel
Impacts
Permanent
(ft)
Existing
Channel
Impacts
Temp.
(ft)
Natural
Stream
Design
R
1
-L- 21+88 - 23+06 LT
Prop. Rdwy Fill / Toe Protection
< 0.01
0.08
2
-L- 24+16 - 25+36
Bridge Widening Temporary Work Pad
0.08
171
Bridge Widening / Bank Stabilization
0.02
91
3**
-L- 27+23 - 27+63 RT
Proposed Roadway Fill
0.02
0.01
4
-L- 33+61 - 34+17 LT
2 @ 78" Pipe Trenchless
< 0.01
< 0.01
34
14
5
-Y4- 16+39 - 16+71 LT
72" Pipe / Bank Stabilization
< 0.01
< 0.01
30
19
6
-L- 37+08 - 40+21 RT
2 @ 78" Pipe Trenchless
0.10
0.03
0.03
< 0.01
241
153
7
-L- 51+96 - 53+70 RT
48" Pipe, 15" Pipe
< 0.01
71
Channel Stabilization
< 0.01
< 0.01
40
Tail Ditch
0.03
< 0.01
212
17
8
-L- 59+73 - 60+10 RT
15" Pipe
< 0.01
0.02
< 0.01
< 0.01
6
39
9
-L- 64+18 - 65+08 LT
48" Pipe
< 0.01
97
Bank Stabilization
< 0.01
< 0.01
30
26
10
-Y2- 24+69 - 25+98
72" Pipe / Riprap Ditch
0.04
< 0.01
< 0.01
< 0.01
118
16
Existing Pond Draining
1.14
11
-Y2- 25+38 - 25+45 RT
Riprap Ditch
< 0.01
< 0.01
31
12
12
-L- 41+32 - 42+04 RT
Toe Protection
0.03
0.01
TOTALS*:
0.20
0.17
1
1.26
0.10
1001
467
0
*Rounded totals are sum of actual impacts
NOTES:
** Isolated Wetland
Bridge Pier Permanent Impact Area = 127 sq. ft. (Eight 4.5 ft. diameter piers)
Revised 2018 Feb
PROJECT REFERENCE NO. SHEET NO.
\ U-5748 6
V DETAIL 9 DETAIL 10 TRAFFIC DIAGRAM WW SHEET NO.
\ , LATERAL BASE DITCH SPECIAL LATERAL 'V' DITCH 13�00 2021 ADT I I ROADWAY DESIGN HYDRAULICS
/v :1�1
5e°lel N =e°I.I 20,00G BUFFER D RAW I N G / b 2oa1 AOT / ENGINEER ENGINEER
°carolr SHEET 5 O F 9 MICHAE N WENG
Ground 3Fill L�to
B-' N°Nr°I ♦ °° Fill I6,500
slope Ground 3. b J REBAR
° Min. D= 1 Ff. 7 D p\� a slope
Ir.l 6= O t. 95500 -� L 51�00 REVISED AUGUST 2022
EIP
FROM -L- STA. 48+00 LT TO A- STA. 49+24 LT
FROM -Y2- STA. 31+00 RT TO -Y2- STA. 33+00 RT Q
DETAIL 27
SPECIAL BACK OF CURB CUT DITCH
(NOT TO SCALE) L
NATURAL U
GR0=N0 — -b = \ 44 M AT H ��S E E S N E ET
\ NCDOT
o
6= 10 Ff. p3. 1 m
D = 1Ff. 1
\ \\ \ FROM -L- STA. 42+59 LT TO-L- STA. 47+00 LT 70 -
DETAIL
BASE TAIL DITCH \\ L
Est. 612 CY DDE IN_
Scale)
Neferd 4') ...-1 .° Prepared in the
Ground Fo ear D pip ge Gro°nd \ \ OKce oi: e_�(/�//�)���� rvc " ErvsE : F-o
]OlCarpor°Falel9� NC 2i54-6 5-A )
d \ X (9191854-6200 - 19191411
899-62991FA%1
auI.
MGeoteAtiof IN P '
Geefexrile B °�RrPI A DOCUMENT NOT CONSIDERED FINAL
Channel Slope=4.7% \ r
Min. D= 3 Ft. 11� � � UNLESS ALL SIGNATURES COMPLETED
Type of Line -Class Rip -Rap, d= 2R. F,S \ \\r 9Fe
PECIAL LATERAL V-DITCH Keyed -In 8= 1D Ff. c \ p ¢n 99
\ \ RE T EE DETAIL 10 r FROM -L- STA. 52+05 RT TO -L- STA. 53+37 RT 9 \ \ /
-L- STA. 54+77 LT
� SU - BRANDOLIN 1 \ \! /
3i2 I", po GR I \ / £ \ \\\ `\\ IN =24s16-RODS MYRA WESTMORELAND III&
OrL
W I HEAD BASE DITCH\" C \ I I SEE DETAIL 42 \ P 14 JA�fES & TERECA
P/a FUs \j+ LATERAL 2' / BY4- I SOUTHEASTERN ADVERTISING \ RIDOUT
] °R er9�o�� BASE DITCH 126 I m PIPE CHANNEL
12 SALES SYSTEMS INC. 1'3 STABILIZATION \M
j \O _ I 10 SEE DETAIL 9
Bsr \_T ro R g51 f7 I I O SEE DETAIL 30 Q C
y 25 D wJ< NCDOT I NCDOT EST. S TONS,
I ES B RIP RAP
Cy / CONC � \ 1 r EST.32 = GEOTEXTIL
LATERAL 2' LENGTH= 10 LF MONSU!
/ x 1 J A BASE DITCH r 1
SEE DETAIL 13 15" CSP = I
W0005 1 18" \RCP- ELBOWS,
4 \ I 2GI-D
/ ISBRKO // 9 ` CUR1 UT )I OF 18 DI
ALB T & JOY WLAND SEE ETAIL 27 CB CB \POE e F
I - 7 .� C' PUE PUE A
/ P —
D1 1 Fo_
E PUE PUE
E I
WOODS
_�_ PUE _ p 11 ISTING R/W I II
E �_ SUE - — — — — — — - .. -
— — — BW � � WOODS
48'W IS P
WW
CB 18" RCP- _ 4816' FDOI —_—mi~ —1 ---- T—Fo--------------—TFaw— -- _--_ ONC CP_
REMOVE F�Fj
INV 24
US 401 SB/LOUISBURG RD 29'BSI — —
a a s a v T — — _ _ —
_ 24 FO DI —
n-
- --- —_ —�— R Dp1T
C r v ��� > -y2Gl GRASS
61 rn z — — — — __ iT OP=237.05'
rn rn .011111
DI
INV=225.4I' ------
L DI U 40IN301'OBS7 URG RD : 30 , 6, _251.73- J
a_-------
= r GRASS
rn-7--� o w _ ------ —-------�— _B
E I� - -�►— —ego I INV= -V C8
m °
—
—_
^caw Isew
-ERI IP
- - _
1 �
r = 9 INV 229.13 IN =228.6 ' G r _ ON
_ R � V=233.71' ftP�
m + ce -Y — — DE —
POE W
,PRE -_ _ SITE 7
m \ n GRADE T \
- ^^ \ D a DRAIN
F M �E WOODS
- d TERAL V-DITCH e RISER - NV=246.54
ETAIL NCDOT WCLASSI I RIP RAP <y} P 0 S TOP=299 73
V p _
rT0 ISFD > \\'INV=295.09'
tt��11 I� EST. 5S0 TONS CLASS I RIP RAP �� 8 ---� \
EST. 700 SY GEOTEXTILE
a N 5 SEE DETAIL 45 r�1
23 I w 1 )?) TOE 60ROTE SON
PUE cGN� �- , S
ESTT.CLA52 B SYPGEOTEXTILE
18" EN SEE TAIL 12 _- J
C E-
I9 RCP- DN JUNIUS WYNDER JR. & PIPE CHAN EL
E S O RE LORETTA WYNDER OABENER VELASOUEZ & STABB.I2A ON - IP
C ARIEL MONTEALEGRE 29 a
O \ MARIA RODRGUEZ SEE DL7 L 39 QI
END CONSTRUCTION GT EST. 9 TONS, BL 2 }
CLAS I RIP RAP qg• CHL � 1
NO 23 FORSEE ROPOSED CHANNEL GRADE �p LET GTH 540 LFOTEXTILE GoJ—_ B E
~ EP WAKE HIGH MEADOWS
w 117 118 HOMEOWNWERS ASSN. DETAIL 39 ti �/
a PIPE HANNEL STABILIZATION ��'
i ROPOSED CHA NEL
( Nana srole) Nm I.d
XIANG ZHONG DETAIL 8 G'°""d MITIGABLE IMPACT ZONE 1
LATERAL 8' BASE DITCH & LATERAL 'V' DITCH I.s• 7
= EST. 295 TONS JIYIN LIU (Nott Style) Geofeafile \—g1
CLASS0S RAP b Olwnn.l etiz MITIGABLE ACTS ZONE 2 a�
a EST. 500 SY GEOTEXTILE Neror°I �— (Vedeble b•f l01
SEE DETAIL 7 rooe 3. Mme of u°e.- a I Rlp-R°p - R.vyed-le 2 j
FI I $" 0.02g fNt Prop. in. deplR= a 1A T B
NCDOT D Nol,e EXISTING
0 won -L- STA. 53+37 R r ✓s o x Nrr Min. D= 1 11. CHANNEL
O b= 10 R. p
U
z FROM -L- STA. 46+59 RT TO -L- STA. 49+26 RT TIE TO ��R•�`B�
m -WAKE HIGH MEADOWS 17 FLORENCE SEREM EXISTING HANNEL
i HOMEOWNWERS ASSN. DETAIL 7 E AIL 12 �sMt as "'T DETAIL 42
C] LITERAL BASE DITCH Y HINGE
a IN. Sre1) T PROTECTION D TAIL 13 - HEAD BASE DITCH 31
U N°Nrol _ (Not fo SwW)
Groan b m LATERAL BASE DITCH (Nam stele) �--y BRIGHTON
I N— smle)
Q, 118 FILIPE GOD01 P.� — — Fill P°�et b Ne,erel N°wrol COMMUNITY ASSN. INC.
Ff.
/n dI D gloPe NPNrPI 'L'\ p`'\o N°wml Gro°nd 7p.7 D ,5.� Ground
Lj GEOTEMI I B Ground b t /
d Gra,nd 3. 3'3 1Ff. Slope
SFill
O' O' SO' 100, Min. D= 1.5 Ff. Min. D= 1 R. Length 19 LF
O w Max. d- 1.5 R. d= 1 Ft. ° Min. D= 1 Ft. B= 4 F Est. CY DOE
a EODORE & COLLEEN HESSAH B= 8 Ff. b= 5 Ft. Geo.46 I«J B= 2 R. sl e = 1.0% FOR -I- PROFILE, SEE SHEET NO.14
b= 5 Ft. STA. 54+80 LT
m Type of Liner- Cl..I Rip -Rap ',! I Ff!r Type of Liner= CI° B Rip -Rap FOR -Y2- PROFILE, SEE SHEET NO, III
6 GRAPHIC SCALE FROM -L- STA. 42+85 RT TO -L- STA. 44+80 RT / FROM -L- STA. 53 STA. 58+00 RT FROM -lr STA. 52+80 IT TO -L- STA. 54+77 LT FOR-DRIVE2- PROFILE, SEE SHEET NO. 21
FOR -DRIVE4- PROFILE, SEE SHEET NO. 22
Submitted 9/12/2022
RIPARIAN BUFFER IMPACTS SUMMARY
IMPACTS
BUFFER
TYPE ALLOWABLE MITIGABLE REPLACEMENT
Site Station Structure ROAD PARALLEL
No. (From/To) Size / Type CROSSING IMPACT BRIDGE ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2 TOTAL ZONE 1 ZONE 2
(ft2) (ft2) (ft2) (ft2) (ft2) (ft2) (ft2) (ft2)
2
-L- 23+58 - 26+19
Bridge Widening
X
11170
7735
18905
0
4
-L- 32+26 - 34+33 LT
2 @ 78" Pipe Trenchless
X
2625
1836
4461
5
-Y4- 15+07 - 17+32 LT
72" Pipe
X
2854
1504
4358
6*
-L- 36+58 - 40+67 RT
Roadway Widening
X
18329
11898
30227
12*
-L- 40+67 - 41+72 RT
24" Pipe
X
3447
2184
5631
7
-L- 52+76 - 54+22 RT
48" Pipe / Tail Ditch
X
19112
6397
25509
8
-L- 59+07 - 60+10 RT
15" Pipe
X
2640
1782
4422
9
-L- 63+69 - 65+60 LT
48" Pipe
X
8674
5347
14021
10*
-Y2- 24+14 - 26+39
72" Pipe / Riprap Ditch
X
48553
33525
82078
11 *
-Y2- 25+09 - 25+79 RT
Riprap Ditch
X
2570
1528
4098
TOTALS*.
28770
18606
47376
91205
55130
146334
0
0
NOTES:
** Sites 6 & 12 and Sites 10 & 11 directly adjacent to each other.
2018 Feb