20211248 Ver 1_560222_Surface Water Impacts_2021.07.29_20210816

Highway North Carolina Department of Transportation ¢,,Ho.. z
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Stormwater e
Highway Stormwater Program
STORMWATER MANAGEMENT PLAN
(Version 2.08; Released April 2018) FOR NCDOT PROJECTS
WBS Element: 48207.3.1 TIP No.: B-6012 County(ies): Madison Page 1 of 1
General Project Information
WBS Element: 48207.3.1 TIP Number: B-6012 Project Type: Bridge Replacement Date: 8/2/2021
NCDOT Contact: _Mike Calloway Contractor/ Designer: TGS Engineers (Rusty Lassiter)
Address: 20 Old 74 Address: 706 Hillsborough Street
Asheville, NC 28803 Suite 200
Raleigh, NC 27603
Phone: [phone] Phone: [phone] ext. 121
Email: [e-mail] Email: [e-mail]
City/Town: Marshall, NC County(ies): Madison
River Basin(s): French Broad CAMA County? No
Wetlands within Project Limits? No
Project Description
Project Length (lin. miles or feet): 0.090 miles Surrounding Land Use: Mountainous; Rural
Proposed Project Existing Site
Project Built-Upon Area (ac.) 0.6 ac. 0.3 ac.
Typical Cross Section Description: Two 10.0' paved travel lanes with 2.0' paved shoulders. Two 9.0' paved travel lanes with 2.0' grass shoulders.
Annual Avg Daily Traffic (veh/hrlday): Design/Future: Year: Existing: 510 Year: 2019
General Project Narrative: Replacement of Bridge No. 560222 on SR 1151 over Back Branch in Madison County, NC. The proposed 35' long by 24'-10" wide single span bridge would replace the existing
(Description of Minimization of Water 22' long by 17'wide single span bridge. The proposed bridge will be relocated +/-32 ft. downstream of the existing bridge. Existing bridge will be removed upon completion of the
Quality Impacts) new alignment. Bridge No. 560222 is within the French Broad drainage basin and is not subject to riparian buffers. Since the proposed bridge will be relocated downstream and
come in close proximity to the stream, there will be a stream relocation (126 feet in length)from the upstream face of existing bridge to Big Pine Creek.
Waterbody Information
Surface Water Body(1): Back Branch NCDWR Stream Index No.: 6-108-4
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification:
Other Stream Classification:
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: N/A Buffer Rules in Effect: N/A
Project Includes Bridge Spanning Water Body? Yes Deck Drains Discharge Over Buffer? N/A Dissipator Pads Provided in Buffer? IN/A
Deck Drains Discharge Over Water Body? No (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no,justify in the
(If yes, provide justification in the General Project Narrative) General Project Narrative)
WBS Element: 48207.3.1 TIP No.: B-6012 County(ies): Madison Page 2 of 2
Additional Waterbody Information
Surface Water Body(2): Big Pine Creek NCDWR Stream Index No.: 6-108
NCDWR Surface Water Classification for Water Body Primary Classification: Class C
Supplemental Classification:
Other Stream Classification:
Impairments: None
Aquatic T&E Species? No Comments:
NRTR Stream ID: N/A Buffer Rules in Effect:
Project Includes Bridge Spanning Water Body? Yes Deck Drains Discharge Over Buffer? N/A Dissipator Pads Provided in Buffer? N/A
Deck Drains Discharge Over Water Body? No (If yes, provide justification in the General Project Narrative) (If yes, describe in the General Project Narrative; if no,justify in the
(If yes, provide justification in the General Project Narrative) General Project Narrative)

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/f 1 See Sheet 1-A For Index of Sheets STATE T 1 E OF' �O 1�& �Tf'ET C..`R O L I N A STATE STATE PROJECT REFERENCE NO "RR ET 1,
L�` 1L L V 1 L 1 LO 1L ND. NRRTs
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LNCDOT CONTACT: V I R G I NI A M A B R Y HYDRAULICS
GRAPHIC SCALES DESIGN DATA PROJECT LENGTH ENGINEER t0 PRO!F,y
PLANS PREPARED BY: PLANS PREPARED FOR: ',� 44
ADT 2017 = 510 1GS TGS ENGINEERS I NCDOT oe r'
r 20 10 0 20 40 % *
PLANS 804-C N.LAFAYETTE ST PRIORITY PROJECTS UNIT
'i" T = 6 LENGTH ROADWAY PROJECT B-6012 #560222 =0.083 SHELBY,NC 28150 1000 Birch Ridge Dr. P
V = 35 MPH LENGTH STRUCTURE PROJECT B-6012 #560222 =0.007 Ii PH [phone]
CORP LICENSE NO.:C-0275 Raleigh,NC 27610
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00o O 4 2 0 4 8 P.O.BOX 7168 AUSTIN R.TURNER, PE
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p N�' `'��,�S. se Jl x.BM"1 STEPS �R\\ �1S g\G CORP. LICENSE NO.: C-0275
PROPOSED STREAM CENTERLINE LOCATION ppJp�pS 9�9A sr 48.CO *' �/ �/
-\ - -' /ass/
.. / // \��;` �, // 15 ,�s COGS
STATION LATITUDE LONGITUDE St�i�•
// /// � �` . =�/ LATHY . 1�j 1 6Ve W
GG/ / /:::
:::::::
72 •� /0ei` /4 / 1+17.58 •
0+98.17
•
��� �P� VANE STATION
Ge �s'` �� \a�w GR J � SACKFUL m. RED
\\ / / G `� •• . MST STONE EXCAVATED POOL
11,
iA'�aN
? `' l� `` • VANE TMATEO REACT SPOULO HAVE FF
0+75.52 35.796714 -82.806940 3�� o''' `s\ `\ � EXCAVATED TRENCH s ro cexrEn of Fool
GGG SS 0+75.52 0 f �v FLOW RSV STONE CONSTRFOR UCTION
DEarexTxLE
S ¢' 6'I e '1 •}, Tioxss
y\ 'p,/ / ��' 0+67 0+04.79 �F•1� �'`I. REDTEXTILE SECTION A-A
FP6�AV 0+58.lg �.�C�' 1 � ,;t411','.yE�.
0+67 35.796712 -82.806912 / / PS'Q REF �15 "-'--5=1�� x °oL I �,I jis EU VANE ARM ATI
\¢ _ 0+38.34 1-l�` ROCK
wnxKFuu HEADER
ELEVATION
/� sP�`E GV\'F\�0 © 1S FOOT DIRECTION OF ENGINEER ROCKS
ER \
P
N /4P? A ROCK K A q,SLOPE
J�PDDL EXCAVATED PER 1
Z 0+58.8 35.796713 -82.806884 �/ �*el 1S GS VANEXTO.A"TX SACKFI YP.u T
O / / E ,'At/ WGO ELEVATION
OR TO
SLIGHTLY MSr STONE TO FOOTE BED
y G ) semexnLE n
G�' \� BnOI ROCKS
A ROCKS m VANE Ann SHOULD
0+38.34 35.796728 -82.806772 11 G ,P G) %� �' �GP GRp55 DLD IRExsI WIDTH PLAN VIEW MEDIUM SIGNIFICANT SPACES
Y
5 STATION
HEIGHT LENGTH
o 2 6*X D" SECTION B_g NOT RE GAFFED OR HAVE
O�GG�
\5 ___ _ _ • __ iirrexEEApNPr""LEs00i POOL TO LINE WITH WHERE
0+04.79 35.796779 -82.806723 p� 7
5 ai Dco REDucE v0=Ds ERE'
sroxE c"x RE ussD ro
BET
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FOO
ai E ROCK CROSS VANE DETAIL COMPACT HEADERS AND EXTEERG.
x,COMPACT R KaLL TO EXTENT PDGG=RLE DR AT rNE
V
O XDTE.APPLIES TO ALL CROSS VANES
NOT TO I LE s1 POOL DEPTH SHOULD RE U TO O TIMES UANKFULL DEPTH.
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PROPOSED STREAM RELOCA1lON PROFILE
NOTE:CENTER HEADER ROCK S I JLO HAVE
Ei EEATL PE.THAT DIRECTS FLOW I• rENTEP OF
cc
D_ 0 04.79 +OL
HEADER ROCK 0-+3-E.34 0+58.88 0+67 0+7-5,52 ,-98,17 1 17.58
0
i
N 2325' 2325'
N
N
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co
2315' 2315'
r
CLASS 'B RIP RAP
FO:TER ROCK
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0-00 0-10 0-20 0-30 0-40 0-50 0-60 0-70 0-80 0-90 1-00 1--0 1-20
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cr 11111111
m BEGIN GRADE I PROJECT REFERENCE NO. SHEET NO.
-L- STA 14+78.80 PERMIT DRAWING -L- e-sole 5
2,348 ELEV.2,342.85 ROADWAY DESIGN HYDRAULICS
......��......-��� -- ENGINEER ENGINEER
•--.._...---..__... -- ET 5 € 6 ■11
.-_.._...---..__... - I III
-
Pi= 11+80.00 ��1��1���111��1�1 .� - - - - III
EL = 2 34180'
KC= l90 ■- ■�� �- --�LEFT DITCH ■
2,344 --►►►►► D5 = 60 MPH I■1111111I11111111I ,
: .:13.5 ■ ■■-■■■-_-■■-_■■■ __=1111' ■■ ■ M �1111
lir - (-13,T6 ■-■■■-�-■■_T■■ommommmoommom
ommommmoommo ■■■■■ ■■�-■- ■■-�-■■
25' ■-■■■-�-■■-■ �■■■■■ ■■�-■- ■■-�-■■
o ■■■- -■■_�■■ �■■■■■ III■�■11
2,340 L‘�_ ■ ■■ ■■■ =�=i■■■ �■■-�-■■ DOCUMENT NOT CONSIDERED FINAL
III■-■II UNLESS ALL SIGNATURES COMPLETED
TGS ENGINEERS
..S- END BRIDGE i/ J 8O5HELESY, NFA ETTE ST
\` _ -II,-III M■ PH [phone]
2,336 I o _I �■■- -■■■■ CORP. LICENSE NO.: C-0275
.k� :__ I if =■■-�-■■■■ ■■■ ..
\ L I I I I I I I IIIII(I I II I II I ''_I_• :::_::::: .1i ,
mmmmmmmm II
I _ ' �__ __i ■■
2,332 ....-....
_■■■■_■■■-4 moommom. 0 i 11�11
moommomBRIDGE HYDRAULIC DATA -��� -���� 'N _
-■■■■-__ O N-� ►► ■■
2,328 -....-.... __---�„_ __ x, ■■
=DESIGN DISCHARGE = 340 CFS - -■■■ -■■■■mommENNE '�_'mr.imio ' 1 1 1 1 1 y -� ��■■
DESIGN FREQUENCY = 25 YRS mommENNE
-■-■-■■- r N :c. \ i y,. . -� = ■■
=DESIGN I* ELEVATION = 2329.4 FT -■■■■-■■■■ -• \ e �i• smommENNE �� ��11
mommENNE
2 324 BASE DISCHARGE = 490 CFS -■■■■---mommENNE • _^• \ : / ��-
BASE FREQUENCY = 100 YRS --■■_-- �r� ��r_ L• 2' 319/2- • -�- r.•...- �-
BASE Hi* ELEVATION = 2330J FT -om� -ENNE ,_nr o._ a-~ -�- -'.■..._-•.�■■
-■■■■_■■■■ �ii�r ■�■■ -�-��� coo■■
■1111■1111 • •• LOWEST LO -.II■■
OVERTOPPING DISCHARGE= 850 CFS -■■■■_-- :ate_ 5.0'CAI 1111111 •. ■ =■=11111111111111ING
2,370 =OVERTOPPING FREQUENCY= 500+ YRS 11111 ■ er' •• -=
a ■�■��■� 2 320
-OVERTOPPING ELEVATION = 23315 FT ■1111- 11■M ■■ =■=11111111111 11
F. CAP c•-� --
�■uo■o■�� ■ ► a. c-aa:� 11111111 ■■n= __ =■=11111111111-11
2,316 DATE OF SURVEY = 9/25/2019 � ' r cyy■■■ L^ ■:. -. =`''i�' 11111.311d. ,r ::
S•H1 1� G•° 1011 2,316
.S.ELEVATION
AT DATE OF SURVEY = 2323.3 FT „"II"I"I r FOR -L- PLAN, SEE SHEET NO. 4
2,312 - mI,,,,,,,,,I III 2,312
11 12 13 14 15 16
0 -a =
--DR-
Y- 1 l-
cL 2,346 2,346 I 2,346
. !�• I 1
E •
`1- BEGIN GRADE ■■■■■■■■■■
a ♦ Yl 51 A /O+90.UO
2 342 R�/N 2 342 ELEV.2,33592 2,342
D1 STA ll7 �5= 1 -END GRADS -
N -L- STAII+03J4 ■ • l- SI '.1I+�66-
N ♦ PI= 10+98.00
N ELE✓.2,333./0 I 1 • EL = 2.335.05' L STA/3+7729 __
IC Pl- 10+50 •` VC = l5' ELEV.2.334J2
c 2,338 EL ROE •2,338 _ • DS =I l5 MPH 2,338
K = 8 ' 1 - °�r�
o DS - 20 MFH Fl Fi/PP iip ! ■
,2 2,334 J 2,334 _ 6O�• � 4 .03 2,334
c 1 d.+,9j� PI= 11+45.00 m \
• EL = 2,326.69' III \
VC = 50' \
w 2,330 1 •„,....... as /5 MPH 2,330 I_ - \\ - 2,330_
cc
2,326 ►- / ! 2,326 2,326_
N 2,322 2,322 2,322
N
N
0
U
IL)
1
2,318 1 2,318 2,318
I I
U
m
c mAmmmaimm,
1 1 1 2,314 2,314
FOR -Y1- PLAN, SEE SHEET NO. 4
_9a FOR -DR- PLAN, SEE SHEET NO. 4
2 310 I 11 2,310 l i
i 1 - 2,310
C,U
NZ`N 10 11 10 11
,-X=

WETLAND AND SURACE WATER IMPACTS SUMMARY
WETLAND IMPACTS SURFACE WATER IMPACTS
Hand Existing Existing
Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural
Site Station Structure Fill In Fill In in Clearing in SW SW Impacts Impacts Stream
No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design
(ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft)
1 -L- 14+60 Stream Relocation 0.02 < 0.01 126 14
1 -L- 14+60 Bank Stabilization 0.01 120
TOTALS*: 0.03 < 0.01 246 14 0
*Rounded totals are sum of actual impacts
NOTES:
No wetland impacts at site. NC DEPARTMENT OF TRANSPORTATION
Total of 126ft of Proposed Relocated Channel DIVISION OF HIGHWAYS
8/2/2021
MADISON COUNTY
B-6012
48207.3. 1
Revised 2018 Feb SHEET 6 OF 6