20140723 Ver al_Information Letter_20090504

i
I
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen R Sullins
Governor Director
May 4, 2009
MEMORANDUM
TO: Hank Schwab, NCDOT 1
FROM: David Wainwright, NCDWQ?"
Dee Freeman
Secretary
SUBJECT: Seeping Review of NCDOT's Proposed Bridge Replacement Project B-4722; Bridge No. 33
on US 70 over the North River in Carteret County
In reply to your correspondence dated April 15, 2009 (received April 20, 2009) in which you requested
comments for the above referenced projects, the NCDWQ offers the following comments:
Project-Specific Comments
1. Review of the project reveals the presence of surface waters classified as SA; High Quality Waters
(HQW) of the State in the project study area. This is one of the highest classifications for water quality.
Pursuant to 15A NCAC 2H. 1006 and 15A NCAC 2B .0224, NCDOT will be required to obtain a State
Stormwater Permit prior to construction except in North Carolina's twenty coastal counties.
2. Any anticipated dewatering or access structures necessary for construction of bridges should be addressed
in the CE. It is understood that final designs are not determined at the time the CE is developed.
However, the CE should discuss the potential for dewatering and access measures necessary due to bridge
construction.
General Comments Regarding Bridge Replacement Projects
3. The NCDWQ is very concerned with sediment and erosion impacts that could result from this project.
The NCDOT shall address these concerns by describing the potential impacts that may occur to the
aquatic environments and any mitigating factors that would reduce the impacts.
4. If foundation test borings are necessary; it shall be noted in the environmental document. Geotechnical
work is approved under General 401 Certification Number 3687/Nationwide Permit No. 6 for Survey
Activities.
5.
6.
If the old bridge is removed, no discharge of bridge material into surface waters is allowed unless
otherwise authorized by the USACE. Strict adherence to the Corps of Engineers guidelines for bridge
demolition will be a condition of the 401 Water Quality Certification.
Whenever possible, the NCDWQ prefers spanning structures. Spanning structures usually do not require
work within the stream or grubbing of the streambanks and do not require stream channel realignment.
The horizontal and vertical clearances provided by bridges shall allow for human and wildlife passage
beneath the structure. Fish passage and navigation by canoeists and boaters shall not be blocked. Bridge
supports (bents) should not be placed in the stream when possible.
nation Permitting Unit
ail Service Center, Raleigh, North Carolina 27699-1650
is 2321 Crabtree Blvd., Raleigh, North Carolina 27604
919-733-17861 FAX: [phone]
: hftp:llh2o.enr.sLate.nc.us/nLvetiands/
Opportunity 1 Affrmalive Action Employer
NonrthCarolina
Natmallry
ow-
7. Bridge deck drains shall not discharge directly into the stream. Stormwater shall be directed across the
bridge and pre-treated through site-appropriate means (grassed swales, pre-formed scour holes, vegetated
buffers, etc.) before entering the stream. Please refer to the most current version of the NCDWQ's
Stormwater Best Management Practices.
8. If concrete is used during construction, a dry work area shall be maintained to prevent direct contact
between curing concrete and stream water. Water that inadvertently contacts uncured concrete shall not
be discharged to surface waters due to the potential for elevated pH and possible aquatic life and fish
kills.
If temporary access roads or detours are constructed, the site shall be graded to its preconstruction
contours and elevations. Disturbed areas shall be seeded or mulched to stabilize the soil and appropriate
native woody species shall be planted. When using temporary structures the area shall be cleared but not
grubbed. Clearing the area with chain saws, mowers, bush-hogs, or other mechanized equipment and
leaving the stumps and root mat intact allows the area to re-vegetate naturally and minimizes soil
disturbance.
10. Sediment and erosion control measures sufficient to protect water resources must be implemented and
maintained in accordance with the most recent version of North Carolina Sediment and Erosion Control
Planning and Design Manual and the most recent version of NCS000250.
11. All work in or adjacent to stream waters shall be conducted in a dry work area unless otherwise approved
by the NCDWQ. Approved BMP measures from the most current version of NCDOT Construction and
Maintenance Activities manual such as sandbags, rock berms, cofferdams and other diversion structures
shall be used to prevent excavation in flowing water.
12. Heavy equipment shall be operated from the bank rather than in stream channels in order to minimize
sedimentation and reduce the likelihood of introducing other pollutants into streams. This equipment
shall be inspected daily and maintained to prevent contamination of surface waters from leaking fuels,
lubricants, hydraulic fluids, or other toxic materials.
13. In most cases, the NCDWQ prefers the replacement of the existing structure at the same location with
road closure. If road closure is not feasible, a temporary detour shall be designed and located to avoid
wetland impacts, minimize the need for clearing and to avoid destabilizing stream banks. If the structure
will be on a new alignment, the old structure shall be removed and the approach fills removed from the
100-year floodplain. Approach fills shall be removed and restored to the natural ground elevation. The
area shall be stabilized with grass and planted with native tree species. Tall fescue shall not be used in
riparian areas.
Thank you for requesting our input at this time. The NCDOT is reminded that issuance of a 401 Water
Quality Certification requires that appropriate measures be instituted to ensure that water quality standards are
met and designated uses are not degraded or lost. If you have any questions or require additional information,
please contact David Wainwright at [phone].
cc: William Wescott, US Army Corps of Engineers, Washington Field Office
Chris Militscher, Environmental Protection Agency (electronic copy)
Travis Wilson, NC Wildlife Resources Commission (electronic copy)
Steve Sollod, Division of Coastal Management
Garcy Ward, NCDWQ, Washington Regional Office
File Copy

STATE OF NORTH CAROLINA
A*
2 LSD
DEPARTMENT OF TRANSPORTATION ??9 alp 9 O
BEVERLY EAVES PERDUE
GOVERNOR
April 15, 2009
Mr. John Hennessy
DENR-Division of Water Quality
1650 Mail Service Center
Raleigh, NC 27699-1650
SUBJECT: Carteret County Bridge No. 33
Dear Mr. Hennessy;
EUGENE A'WNTI, JR.
The Project Development and Environmental Analysis Branch has begun project
development, including environmental studies and engineering studies, for bridge replacement
project B-4722. This project is included in the current North Carolina Transportation
Improvement Program (TIP) and is scheduled for construction in fiscal year 2013.
I would appreciate any information you might have pertaining to the evaluation of any
potential environmental impacts of this project. Your comments may be used in the preparation
of a federally funded categorical exclusion. The document for this project will be prepared in
accordance with the National Environmental Policy Act. I am requesting that your agency
respond by May 15, 2009 in order that your comments may be used in the preparation of this
document.
If you have any questions or comments concerning this project, please contact Hank
Schwab at [e-mail] or by mail at NCDOT, Bridge Project Development Unit, 1598
Mail Service Center, Raleigh, NC 27699-1598. Please include the TIP Project Number in all
correspondence. Thank you for your consideration
Bridge Project Planning Engineer
Project Development and Environmental Analysis Branch
MAILING ADDRESS: TELEPHONE: [phone]
NC DEPARTMENT OF TRANSPORTATION FAX: [phone]
PROJECT DEVELOPMENT AND ENVIRONMENTALANALYSIS
BRIDGE PROJECT DEVELOPMENT UNIT WEBSITE: WWW.N000T.ORG
1596 MAIL SERVICE CENTER
RALEIGH NC 27699-1551
LOCATION:
ENVIRONMENTAL RESOURCE CENTER
4701 ATLANTIC AVENUE - SUITE 116
RALEIGH, NC 27604
NORTH CAROLINA DEPARTMENT OF
TRANSPORTATION
DIVISION OF HIGHWAYS
PROJECT DEVELOPMENT &
ENVIRONMENTAL ANALYSIS BRANCH
CARTERET COUNTY
REPLACE BRIDGE N0.33 ON US 70
OVER NORTH RIVER -
B-4722
Figure I
r
\ 11 ?.
hF?
1 x
?
-
1 .
r't L
y?' w s
? ,y
, <.
M, NoM
? f
y t
1
.
1 i
r? '4 !? d '. t 4 . g '1
tv
?
# p kh
-L
dS' t i St
f' K !
,
F
?,
rc#°'??.+ ?
\, ?
\a.. ? r ??d P ??{ ,} ?
!
..4a
3}F ?tl F,rl }Y
`L<?
r + •£-
?
l
? ! ? ? `?? k
h. Q ?' .. i? Y
?
i \
•t ?
"A ? C '...ilh ?
4
i
t A?f? 4 ja. #"a n
h' ? ?
.
HI
?4ix 'L ?1^
:.«w,' r «l'?'I.ra k+. }8 -..x-•.+{.n a '-r
k} rtlB
'?
' ^
tt r+ a
4
" lr
-
, }
`??x
i
•?44 Y?t& •l. ?r \ 4
! %k yy,
L t
.:
/,Ylp`(`YS? t ???? n ? ?. .ay Cr R +r{ # if
R»,;''YY'° E 3 R4'4f 4?i$ f l"st 't Y M s I s / F 1'
h `4
{.R t {fY
J "e '? ?+`j1Y. rk F
ft c. '>
4 G Y
?
f
Y,

M:
!V
l? 4V t d f> 1 i. + p
9' 4
T
'A?
b4? Ma'e?f? O
A

5 '? x'Ch .3 ? ? x
INQ V A l Cay!'i f.. .11
'1
T .
b it'a x ° ?a. "ro V2F'>
. b 4# f4o ?.c C !
J! ?5
}Y..
ft
`
• ? •.
S i rx. }
1
?. r, .. • ? _
. '? .*n`5!" f`.?'4" 3.. +2y-xi.XS, \ rYq. frt ?s gvc, t S f t`iZe ': T? F !
'}' 1 kt '. Y .JIVY k 'y?1. Y'V 2}r"
1w\
Y k'
\
3
!('
?
\ b
i '
! 3 ? ? ? r 5`J? ! 7 H x??h«
£
y A (t
3 S i) 9r.
't IR'
+ .?
$".'? Y
.
-" ? t +
-/ ;s4
)
d %
? j
d 5 ?
.
."7 1
} ,d"
4
?? r 4t\ x .. k\ f"'y a f r 'L 3 .
rt a[
F
C
?
' ?
}
ry
vY
sar t?4? t m " ) ` i
*
x
F + ;

M,uy,? .%) 'G w• ?,.
r
,..? t d t. a
+. y tl
fi
k
!:F 1 f a`,`% 3 i.+t O k t Fl{ ;y611 f i,. c tixr. y
? Y Y
{
}"'S
{
? '?"
? ?Gt f
O i ?
q
1 ?
f ) vw ?it v fi"5 "?'!
!f4 i+
. d t g
's4k
r-a ?f yt,
'? } :T r
.
A
,}
4
?r
@ }nf'ay \ S tu'^MA .j ia\s `fiiry {p \. t`S x t a
;: t_ 6
4 A
• 6?
\ 1? -JA 4 Yti {5 J 5: `?vd R
[
i ?'" a i ?'' t
+1f hr •4
're
-_
? C
.
_
c
v{ 3
1Y ff r? -
}
M? .±
R S 1.
4 3
;
? t@,.f"±r ?v} Y^'° .tv}} i(n °9'?a f? ??
A •i1 p? 4, y?
LY ?1 ! S9?v? li Y.p4"
'.L C
•? ?kb t. 'Y4»
?t A
x
?
? ? +' Eie i c

? .tt'i ?Y? h t "
^
C
, j
.t f
I?5` L
?
} ia.n -w ?
¢ j
C
e,
\. rv ?F 1 4,1C e},?.\ ,? i ) y't'?
,k C{ C ?' j
l
t ` • u, L 4 x? z! ?Y kC 1.: ? '? ° f}''i
x
+ i"? ? '? ? ? ?
?l P k d

' S • r'Z
'„' ?? >
3 ..
\
•? Y ??3}
rQ
'•
'
'
J
h E K;

' .. `,. 'rt}f `w':: }
?. y
i .E
t1'Y" 4i!X.l k'?a
J SLS?f "
-.v x ?
j?s
tl
i 3..
4 ).?\ ? `
x.
Yy?
\
{ r ?,
S ?
F
% \ Y ?,r
' ?
Y ?#? ?
.i
k
?
? }
lt.
•
2
?
' ?
?.
$loue s

? 7y 4
} 7
J • i t
.?, "?1 t -
??
',,? k iL F ?z 5?'xa ? ?•
x
T O
!
'i' "Y-
C )
111\\\\ ? ? { J 5
?
i'
5
4
e
r'?td G
? a
jy C
a .«t"
\
n ,.r x ? e % r a n... `.>~• •
••? • ? } t
t
$5114
¢? '?j 4
z
??..--+c''' ,?+^ .n' p
t R ?? ? i Y ? y\pi+Ff S: ? ?' t?`?]qk?`} fa p ? ? ?
s,
I? G l l% V Y ?. Aw?YI?O .?IIICh
?\ "?.?r./ "-'i
L ?. ? r. +- n. -1 a l"\iN4 4t, .? °ttml ?`"3„Y .^\'sF ry v\ - ,?•
}
?
? ? FfW
•
•
r ?

_ _
_ ___? ''••
\ 4 kk ?.5@ ?W
? ? 1 , :?f?y f
^?"r?st R'Z . 4C'
?1?
nl ti 4 .x'- 2,i. "Tt?yk ?'? `i µ ?54 >k 'k. uf..+1?"1?+? ? q
5?
?
'•
?
\ ? •
•
/ y4
•
J ? ?e i
--
Y
? '0 - r *rf
'?4 F? t ? Z ? , w W?1 ?
?flt?
? l?'i
?i7liR? a tta.. & pu ".
?"! Y- ,? 4a'^'3"} t 71{ l } ??
d ? • _

•
p???.
OTUI [YKri ?:OrtMf M
??
--
. ?
a z gg,,x Vex"fit R n Y" W qc } h iti ?.':ht ,a ?0
.
fl it -
>?
?'?`t
` ;1• ` v
? n? -
?
?
-
t • >.
vs
n
?

' ?? ? 'rv? A T y? A? ? ?%? r}, t A
''."'? ?f ?"?'"
.Y i$•.?'..YI4??????.5(.M4 ??4?Y? ???? Y i ?.A .?%. ? asF
, .

-
'b+d, m '..a. i
{4
% x
?
d ? y?4 i k ?'^' ? ? "k... ? "dl ?
-b- t if
° . t Y 'AP
? Si"Y+r ? t ??'.
?
"
y
,
y
y ?
? .
i.v
-04 Q HoM IX

,_
"['. ?; ?? ^T t ? ?`-1
?? ??? ?? 'S d ,{t?.? t ?M JaM4C ?Sf? k?}? ..< ?Y YCr??yy??? ?
S ?55 .`:fY *£??Y.'*+ ? ??
,

l MI.
i
a ?

Name: WILLISTON Location: 034° 4723.99" N 076° 36' 34.97" W NAD 27
Dale: 7/18/2008
Scale: 1 inch equals 2000 feet
Copyright (C) 1998, Maptech, Inc.

Y.
I
k

x
z
~ Z
z dq
F pm
? ZN
Y H a
O Z , Z z
<ofa
z r x
0 o a? w
of
zz.z
x?OWO
F s
Z OO°d `z
0
n
N
7
1
? l7 K
f")
W Z ? v ?
? ? Z 6I l?
U m >
w
U
a
w