20051608 Ver 1_Report_19941006

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STATE OF NORTH CAROLINA
DEPARTMENT OF Z~A,NSPORTATION
JAMES B. HUNT, jR. - DIVISION OF HIGHWAYS R. SAnnuEL HUNT [I[
GOVERNOR p.O. BOX25201. RALEIGH. N.C ~7G11-5201 $ECRE7AAY
October G, 199?
~tE~tOR:wDU}1 T0: Jay Bissett, Unit Head
Project Planning L'nit ~{
FR0~1: Robin Vii. Little, Environmental Specialist ~W
Environmental Unit h~
SUBJECT: Results of Submer'ed Aquatic Vegetation N'
Survey for US 17 reuse Ri~Ter Bridge
Felocation and Trent River Widening;
Federal-did \o. 3~-OOOS(33); State Project
,,No. S. 11 i0S01~; TIP ivo. B-'~31 and B-~?5~2.
On .~u~ust 30-3i. 199. vCDOT Environmental Unit Specialists,
Cyndi~Bell, Robin Little and Eric Penley, ~t~ith members of the
~CDOT Dive Team, Bill Lutz and Eric Basinger, performed a
submer`ed aquatic vegetation (S.~V) survey in the proposed
impact areas associated with the relocation/replacement of
the Johr. Lawson Bride on the reuse River and widening of the
Freedom `temorial Bridge on the Trent River.
METHODOLOGY
Survey methodology foil-owed that which has been suggested by
the rational Marine Fisheries Service, and which was applied
to assess S~V impacts at the .Wright ~.temoriai Bridge site in
(:urritucl: and Dare Counties.
Transects were run perpendicular to the shoreline at 10 meter
intervals within the temporary constructs on zones and within
the permanent construction limits. In most cases. the center
transect fell under the centerline, or began to or.e side of
the existing bridge within the construction easement.. (See
diagrams for site locations.)
Information eras collected along each transect at 10 meter
intervals, starting at the shoreline. 1 meter square grid,
subdivided into si:cteen ?~ cm by ?5 cm subplots, was placed
on the river bottom at each sample point. The number of sub-
plots containing S~V were recorded, as was the species
composition, blade length and water depth. This information
was collected until three consequtive empty pio.s ~.eere
encountered. or until the water depth reached pproximately
''.0 m. or G.~ feet.

PHONE [phone]-~ FAX (919) T3-9428

,' , -. ,,,
Sample points within the sample plots were numbered in the
order which they were sampled and each transect was labeled
with a consequtive letter. Thus, Site 2 had three sample
areas represented by 2A1 through 2VS, where 2A-L represent
the sample area and corresponding transects where Ramp DB and
the "L" line intersect tivith the shore, according to stakes
observed at the site. Ramp DC is represented by ?fit-Q and
Ramp DA by 2R-V. Each side of the Trent River Bridge was
sampled on each side of the river. Thus, Site 3A-B
represents the sample area on the southeast corner of the
bridge, Site 3C-D the northeast and so on. Site ~ is located
where Ramp CD and Loop BA meet the shoreline and cross
Scotts' Creek and Site- ~ is the intersection of the "L" line
with the east sire of the reuse Ric°er (Bridgeton). Species
".-~" was identified as Zostera sp. and Species "B" as
~lyriophylum sp.
RESULTS
Areas of SAV impacts are indicated en the attached maps, wit?
the areas mapped shown in rela~ion to the proposed
construction.. The total area of SAV mapped was approximately
5.3 acres. The :.awson Creek and Scotts Creep areas had such
r:ense SAV that it was not possible to count within the grid.
so 100':~ coverage was assumed. Impacts were calculated as 100
of the mapped areas beneath both permanent and temporary
construction areas. (See attached SAV area tabulations and
calculations for breakdowns of permanent and temporary
impacts.)
SAV TOTAL I`iPACTS
SITE 1: Lawson Creek (100° coverage assumed.)
SITE ?: Ramp DB/"L" Line (\o SAV present.}
Ramp DC (;io SAV present . )
Ramp DA
SITE 3: Freedom tite~;;orial Bridge/Trent River
SITE =F: Ramp CD/Loop BA, West side Neuse River
SITE S: "L" Line/Bridgeton (\'o SAV present.)
TOTAL
0.3~ ac.
0
0
O.TS ac.
1.~G ac.
0.?3 ac.
0
?.~}4 ac.
cc: Frank Vick, P.E., Branch Manager, P d: E Branch '
Barney O'Quinn, P.E., Assistant Branch :Manager, P & E
David Robin-son, Persits and ~1iti~ation Unit
Dennis Pipkin, P. £., ~1itigation Section
Charles Casey, P.E., Structures Design

SAV AREA CALCULATIONS
Site 1 Lawson Creek 100 coverage assumed)
Permanent 3 m s 71 m = 213 sq.m. = 0-.021 ha. = 0.05 ac.
Temporary 15 m _Y SO m = 1200 sq. m. = 0.12 ha. = 0.30 ac.
Total = 1413 sq. m. = 0.141 ha. = 0.35 ac.
Site 2 Nest Side of Neuse Ri~-er
`o SAS' present uncer Ramp DB and L Line (2A-L), or Ramp DC
(2y1-Q). SAS' present under Ramp DA (?R-V).
Permanent 11 rn !~ 37 m = 40' sq.m. = 0.0407. ha. = 0.10 ac.
Temporary ~30 m s 'r0 m = 1400 sq. m. = 0.1=~ ha. = 0.35 ac.
Total = 1S07 sq. m. =,0.13 ha.= O.TS ac.
Site 3 Freedom ~~(emorial Brice over Trent Ri~'er
SAV present in permanent and temporary construction areas in
a 1 1 f our quad: ants ; SE ( 3A-B) ; ;:E ( 3C-D) ; NtiV ( 3E-F) ; StV ( 3G-
H); and ir. permanent and temporary construction area of Ramp ,
BD.
Permanent BD 11 m s 4~ m = 495 sq.m. = 0.0495 ha. = 0.1'? ac.
~E 5 m :: 33 r: = 1~S sq.n:. = 0.0195 na. = 0.05 ac.
`W 4 m ~ 62 m = '43 sq.m. = 0.0?4S ha. = O.O;i ac.
SW 5 m s 75 m = 3"~ sq.m. = 0.03-5 ha. = 0.09 ac.
Total 1316 sq.m. = O.1.i16 ~a. = 0.33~ac.
Temnorary SE 10 m x 40 m = '.00 sq.rr.. = 0.04 ha: = 0.10 ac.
`:E S m Y 34 m = 170 sq.m. = 0.017ha. = 0.04 ac.
5 m :i '?6 m = 130 sq.m. _~ 0.013:1a. = 0.03 ac.
10 m s 33 m = 3'?0 sq.m. = 0.03'?ha. = O.OS ac.
,.~V 10 m x .S m = SSO sq.m. = O.OSSaa. = O.lY ac.
10 m x 62 m = 6?0 sq.m. = 0.06?ha. = 0.15 ac.
SN 10 m s 75 m = 7.0 sq.m. = 0.075ha. = O.1SSac.
10 m s 96 m = 960 sq.m. = 0.096ha. = 0..34 ac
BD 14 m s 4S m = 672 sq.m. = O.Oti7ha. = 0.17 zc.
Total 4603 sq.m. = 0.460ha. = 1.14 ac.

Site = Nest Side of ti' euse River
SAV present alon? shoreline and in an isolated patch under
the proposed B~ ioop and 10 00 c overage is assu med in Scott s
Creek.
Permanent 10 m :c 12 m = 1S0 sq. m.= 0.013 ha. = O.11S ac.
Temrorarv 10 m ~ ~ n•. = 2S0 sq.m. = 0.0.S ha. = 0.0-=~ ac.
2~ m s 7 m = 1"~ sq.m. = O.O1S ha. = 0.013 ac.
Sub-TUta1 1~~ sq.m. _ ,0.C1G ha. = 0.11-~ ac.
Total 93~ sq.m. = 0.09Y ha. = 0.333 ac.
Site ~ 'reuse River. East Side. Bridgeton

\o S~V prese nt. ~

SAV AREA TABUL_aTIO;~'S in ha. (ac. )
SITE ~ PEF~1AVEVT TE~tPORAFY TOTAL
1 0.02 (0.0~) 0.13 (0.30) 0.11 (0.35)
0.01 (0.10) 0.1~ (0.35) O.1S (0.15)
.3 0.13 (0.32) 0.~',6 (1.1~) 0.59 (1.16}
1 O.C~ (O.I3) 0.05 (O.il) 0.10 (0.23)
S 0 0 0
'i0T:1L 0.2~ (0.59) O.i;~ (1.9) 1.01 (2.19)

Set/
Transect/ # Subplots/ Species -Water Blade
Plot # $ Cover Depth Length
1 N/A 100% B 5' 2'
2A1 0/16; 0% N/A 2' N/A
2A2 0/16; 0$ N/A 5' N/A
2A3 0/16; 0% N/A 10' N/A
2B1 0/16; 0% N/A 10' N/A
2B2 0/16; 0% N/A 5' N/A
2B3 0/16; 0$ N/A 2' N/A
2C1 0/16; 0$ N/A 3.5' N/A
2C2 U/16; 0$ N/A 7' N/A
2C3 0/16; 0$ N/A 9' N/A
2D1 0/16; 0$ N/A 8' N/A
2D2 0/16;. 0$ N/A 6' N/A
2D3 0/16; 0% N/A 2.. 5' N/A
2E1 0/16; 0$ N/A 2' N/A
2E2 0/16; 0$ N/A 5' N/A
2E3 0/16; 0$ N/A 7' N/A
2F1 0/16; 0$ N/A 3.5' N/A
2F2 0/16; 0$ N/A ~1.5' N/A
2F3 0/16; 0% N/A 0.5' N/A
2G1 11/16; 69$ A 2' S"
2G2 0/16; 0$ N/A 6' N/A
2G3 0/16; 0$ N/A 10' N/A
2H1 0/16; 0% N/A 10' N/A
2H2 0/16; 0% N/A 6' N/A
2H3 0/16; 0% N/A 2' N/A
2I1 0/16; 0% N/A 2' N/A
2I2 0/16; 0$ N/A S' N/A
2I3 0/16; 0% N/A 8' N/A
2J1 0/16; 0$ N/A 8' N/A
2J2 0/16; 0$ N/A 4.5' N/A
2J3 0/16; 0$ N/A 2' N/A
2K1 0/16; 0$ N/A 1' N/A
2K2 0/16; 0% N/A 4' N/A
2K3 0/16; 0$ N/A 8' N/A
2L1 0/16; 0$ N/A 7' N/A
2L2 0/16; 0$ N/A 2' N/A
2L3 0/16; Oa N/A 1' N/A
2M1 0/16; 0$ N/A 1' N/A
2M2 0/16; 0% N/A 3' N/A
2M3 0/16; 0% N/A 8' N/A
2N1 0/16; 0% N/A 8' N/A
2N2 0/16; 0$ N/A 3' N/A
2N3 0/16; 0% N/A 1' N/A
201 0/16; 0% N/A 1' N/A
202 U/16; 0$ N/A 3' N/A
203 0/16; 0$ N/A 9' N/A
2P1 0/16; 0% N/A 8' N/A
2P2 0/16; 0$ N/A 3' N/A

2P3 0/16; 0% N/A 1' N/A
2Q1 0/16; 0% N/A 1' N/A
2Q2 0/16; 0% N/A 3' N/A
2Q3 0/16; 0% N/A 8' N/A
2R1 0/16; 0% N/A 0.5' N/A
2R2 ~ 16/16; 100.% A 1.5' 1'
2R3 16/-16; 100 % A 2' 1'
2R4 4/16; 25% A 3' 1'
2R5 0/16; 0% N/A 3' N/A
2R6 0/16; 0% N/A 4' N/A
2R7 0/16; 0% N/A 5' N/A
2S1 0/16; 0% N/A 5' N/A
2S2 0/16; 0% N/A 4' N/A
2S3 0/16; 0% N/A 3' N/A
2S4 16/16; 100% A 2' 1' '
2S5 3/16; 19% A 2' 1'
2S6 16/16; 100% A 1' 1'
2S7 0/16; 0% N/A 0.5' N/A
2T1 8/16; 50 % A 0.5' 0. 5~'
2T2 16/16; 100% A 2' 1'
2T3 16/16; 100% A 2' 1'
2T4 16/16; 100% A 2' 1'
2T5 0/16; 0% N/A 3' N/A
2T6 0/16; 0% N/A 4' N/A
2T7 0/16; 0% N/A 5' N/A
2U1 0/16; 0% N/A 5' N/A
2U2 0/16; 0% ~N/A 5' N/A
2U3 16/16; 100% A 3' 1'
2U4 16/16; 100% A 3' 1'
2U5 16/16; 100% A 2' 1'
2U6 16/16; 100% A i' 1' '
2U7 0/16; 0% N/A 0.5' N/A
2U8 0/16; 0% N/A 0.5' N/A
2V1 0/16; 0% N/A 0.5' N/A
2V2 16/16; 100% A 2' 1'
2V3 16/16; 100% A 2' 1'
2V4 16/16; 100% A 3' 1'
2V5 5/16; 31% A 3' 1'
2V6 0/16; 0% N/A 4' N/A
2V7 0/16; 0% N/A 5' N/A
2V8 0/16; 0% N/A 6' N/A
3A1 0/16; 0% N/A 0.5' N/A
3A2 0/16; 0% N/A 4.5' N/A
3A3 0/16; 0% N/A 5.5' N/A
3B1 0/16; 0% N/A 0.5' N/A
3B2 13/16; 81% A 2.5' 0.5'
3B3 14/16; 88% A,B 3.5' 1'
3B4 6/16; .38% A,B 5.5' 1'
3B5 3/16; 19% A,B 7' 1'
3B6 0/16; 0% N/A 10' N/A
3C1 0/16; Oo N/A 0.5' N/A
3C2 16/16; 1000 A,B 1.5' 0.5'
3C3 4/16; 25% B 6' 1'

3C4 1/16; 6% B 9' 1'
3C5 0/16; 0% N/A 13' N/A
3D1 .0/16; 0% N/A 0.5' N/A
3D2 16/16; 100% A 2' 1'
3D3 14/16; 88% A,B 1.5' 0.5'
3D4 1/16; 6% A 6' 0.5'
3D5 0/lfi; 0 % N/A 9' N/A
3D6 0/16; 0% N/A 13' N/A
3E1 0/16; 0% N/A 1' N/A
3E2 15/16; 94% A,B 3.5' >1'
3E3 3/16; 19% A,B 4' >1'
3E4 10/16; 62% A,B 4' >1'
3E5 16/16; 100% A,B 5' >1'
3E6 15/16; .94% A,B 5.5' >1'
3E7 12/16 ;75% A,B 6' >1'
3E8 0/16; 0% N/A 6' >1'
3F1 0/16;. 0% N/A 3' N/A
3F2 16/16; 100% A,B 3' >1'
3F3 16/16; 100% A,B 3.5' >1'
3F4 15/16; 940 A,B 4' >1'
3F5 16/16; 100% A,B 5' >1'
3F6 16/16; 100% A,B 5.5' >1'
3G1 8/16; 50% B 5' >1'
3G2 16/16; 100% B ~5' >1'
3G3 16/16; 100% B 4' >1'
3G4 8/16; 50% B 4' >1'
3G5 12/16; 75% B 3' >1'
3G6 6/16; 38% B 3' >1'
3G7 0/16; 0% N/A 5.5' N/A
3G8 0/16; 0% N/A 6' N/A
3G9 16/16; 100% N/A 5' N/A
3G10 8/16; 50% B 5.5' >1'
3H1 2/16; 13% B 2' >1'
3H2 6/16; 38% B 4' >1'
3H3 10/16; 63% B 4' >1'
3H4 9/16; 56% B 4' >1'
3H5 16/16; 100% B 4' >1'
3H6 14/16; 88% B 5.5' >1'
3H7 16/16; 100% B 5' >1'
3H8 16/16; 100% B 5.5' >1'
3H9 8/16; 50% B 5.5' >1'
3H10 4/16; 25% B 5' >1'
4A1 16/16; 100% A 1' 0.5'
4A2 ~
0/16; 0% N/A 1.5' N/A
4A3 0/16; 0% N/A 2' N/A
4A4 0/16; 0% N/A 3' N/A
4B1 4/16; 25% A 3' 0.5'
4B2 0/16; 0% N/A 2' N/A
4B3 0/16; 0% N/A 2' N/A
4B4 3/16; 19% A 1' 0.5'
4B5 0/16; 0% N/A 3' N/A

4B6 O/16; 0% N/A 3' N/A
4B7 0/16; 0% N/A 3' N/A
4C1 7/16; 44% A 1' 0.5'
4C2 0/16; 0% N/A 2' N/A
4C3 0/16; 0% N/A 2' N/A
4C4 0/16; 0%. N/A 3' N/A
4D1 0/16; 0% N/A 3' N/A
4D2 0/16; 0% N/A 2' N/A
4D3 0/16; 0% N/A 2' N/A
4D4 1/16; 6% A 1' 0.5'
4E1 0/16; 0% N/A 1' N/A
` ~K,- 4E2 0/16; 0 % N/A 2' N/A
4E3 0/16; 0% N/A 2' N/A
4E4 0/16; 0% N/A 3' N/A
4F1 0/16; 0% N/A 3' N/A
4F2 0/16; 0% N/A 2' N/A
4F3 0/16; 0% N/A 2' N/A
4F4 1/16; 6% A 1' 0.5'
4G1 1/16; 6% A 1'~ 0.5'
4G2 0/16; 0% N/A 2' N/A
4G3 0/16; 0% N/A 2' N/A
4G4 0/16; 0% N/A 3' N/A
4H1 1/16; 6% A 1' 0.5'
4H2 0/16; 0% N/A 2' N/A
4H3 0/16; 0% N/A 2' N/A
4H4 0/16; 0% N/A 3' N/A
4I1 0/16; 0% N/A 2' N/A
4I2 0/16; 0% N/A 2' N/A
4I3 0/16; 0% N/A 2' N/A
4I4 8/16; 50% A 3' 0.5'
4I5 0/16; 0% N/A 4' N/A
4I6 0/16; 0% N/A 5' N/A
4I7 0/16; 0% N/A 5' N/A
4J1 0/16; 0% N/A 5' ~ N/A
4J2 0/16; 0% N/A 4' N/A
4J3 0/16; 0$ N/A 3' N/A
4J4 0/16; 0% N/A 3' N/A
4J5 0/16; 0% N/A 2' N/A
4J6 0/16; 0% N/A 2' N/A
4J7 14/16; 88% A 1' 0.5'
4K1 0/16; 0% N/A 1' N/A
4K2 0/16; 0% N/A 2' N/A
4K3 0/16; 0% N/A 2' N/A
5A1 0/16; 0% N/A 0.5' N/A
SA2 0/16; 0% N/A 1.5' N/A
5A3 0/16; 0% N/A 3' N/A
5B1 0/16; 0% N/A 3' N/A
SB2 0/16; 0% N/A 1.5' N/A
5B3 0/16; 0% N/A 0.5' N/A
SC1 0/16; 0% N/A 0.5' N/A
5C2 0/16; 0% N/A 1.5' N/A
SC3 0/16; 0% N/A 3' N/A
5D1 0/16; 0% N/A 3' N/A

SD2 0/16; 0% N/A 1.5' N/A
SD3 0/16; 0% N/A 0.5' N/A
5E1 0/16; 0% N/A 0.5' N/A
5E2 0/16; 0% N/A 1.5' N/A
5E3 0/16; 0% N/A 3' N/A
SF1 0/16; 0% N/A 3' N/A
5F2 0/16; 0% N/A 1.5' N/A
SF3 0/16; 0% N/A 0.5' N/A
5G1 0/16; 0% N/A 0.5' N/A
5G2 0/16; 0% N/A 1.5' N/A
SG3 0/16; 0% N/A 3' N/A
Data Set # 1 was located at the existing US 70 bridge on
Lawson Creek. The entire project area supports lush SAV
beds. Sampling was not conducted due to abundance and
density of vegetation; therefore, the entire impact area will
be considered SAV habitat.
Data Set ~ 2 includes the mainline and ramps DA and DC on the
south side of the new bridge over the Neuse River. 2A
through 2L include the mainline, 2M through 2Q include ramp
DC, and 2R through 2V include ramp DA.
Note: Plot 2Gl contained an isolated patch of SAV.
Neither the immediate area outside this plot nor
any other plots in the sample area contained SAV.
" Data Set ~ 3 includes the widening of the existing US 70
bridge over the Trent River. '
Data Set # 4 includes ramp CD and loop. BA.
Data Sete 5 includes the mainline at the Bridgeton
touchdown.

.1170801

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ST M 2 F.F. WOODS
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STATE OF NORTH CAROLINA
DEPART7VIENT OF TRANSPORTATION
MICHAEL F. EASLEY 1501 MAIL SERVICE CENTER, RALEIGH, N.C. 27699-150,1 LYNDO TIPPETT
GOVERNOR SECRETARY
8 March 2001
MEMORANDUM TO: V. Charles Bruton, Ph.D., Assistant Branch Manager
Project Development and Environmental Analysis Branch
FROM: Bruce O. Ellis, CLM, PWS, Unit Head
Natural Systems Unit
SUBJECT: Submersed Aquatic Vegetation Survey, for US 17 Neuse
River Bridge Relocation, and Trent River Bridge Widening,
Federal Aid Project No. BR-OOOS(33), State Project No.
8.1170801, Tip No.s B-2531 and B-2532.
ATTENTION: Alice Gordon, Environmental Specialist
Natural Resources, Permits, and Mitigation Unit
REFERENCE: 1. Memorandum: Results of Submersed Aquatic Vegetation
Survey, by NCDOT environmental specialist, Robin Little,
06 October 1994.
2. Memorandum: Submersed Aquatic Vegetation Survey,
for US 17 Neuse River Bridge Relocation, and Trent River
Bridge Widening, Bruce O. Ellis Environmental Specialist,
02 October 1997.
The following memorandum provides the results of a submersed aquatic
vegetation (SAV) survey for the subject project. The survey was conducted on August 14
and 15, 2000 by NCDOT natural systems specialists Bruce Ellis, Dale Suiter and Mary
Frazer, and members of the NCDOT dive team, Bill Lotz, James Talacek and Allen
Hancock.
The August 2000 SAV survey was conducted to determine impacts to SAV's as a
result of the subject project. Prior surveys were conducted in August 1994, prior to
project construction and in June 1996, after construction was initiated. Surveys between
1996 and 2000 were disrupted by inclement weather (i.e., hurricanes), and hazardous
diving conditions due to project construction.
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