229-89 Minor Mod Town of Chocowinity (2)

Permit Class
MODIFICATION/MINOR
Permit Number
229-89
Issued
STATE
Department of Eny
X Major Devel % rA
pursuant to NC 1 v 4 o x
s
Excavation and/or
of Chocowinity, P.
development in Beaufort County
Natural Resources
to NCGS 113-229
in the permittce's
This permit, issued on May 29, 1992 is subject to compliance with the application (where consistent
with the permit), all applicable regulations, special conditions and notes set forth below. Any violation of these terms may be
subject to a fine, imprisonment or civil action; or may cause the permit to be null and void.
1) This permit modification authorizes excavation of the sewer line main
trench by clam shell bucket as described in the application letter and
revised drawing.
2) Spoil from the clami shell operation must be placed on a barge and moved
to the high ground disposal site identified as the Moss Planing Mill
property. The excavated material must be managed at the site so as not
to return to the River during or after project activity.
3) No excavation by any method may take place between March 1 and May 1 of
any year without the prior approval of the DCM in consultation with the
Division of Marine Fisheries.
4) Spoil material taken from the River may not be used as backfill for the
pipe.
(See attached sheet for Additional Conditions)
This permit action may be appealed by the pemtittee or
other qualified persons within twenty (20) days of the
issuing date. An appeal requires resolution prior to work
initiation or continuance, as the case may be.
This permit must be accessible on -site to Department
personnel when the project is inspected for compliance.
Any maintenance work or project modification not
covered hereunder requires further Departmental approval.
All work must cease when the permit expires on
In issuing this permit, the State of North Carolina agrees
that your project is consistent with the North Carolina
Coastal Management Program.
Signed by the authority of the Secretary of DEHNR and the
Chairman of the Coastal Resources Commission.
RogerN. Sch cter, Director
Division of Coastal Management
This permit and its conditions are hereby accepted.
Signature of Permittee

MEMORANDUM
TO: John Parker
FROM: David Gossett
THROUGH: Terry Moore
DATE: 30 April 1992
SUBJECT: Request for Minor Modification of Permit
Town of Chocowinity
Permit No. 229-89
Beaufort County
MAY 0 5 IM I
On 11 December 1989 the NCDCM issued to the Town of Chocowinity the subject
permit for the subaqueous placement of a sanitary sewer force main across the
Pamlico River just downstream from the US 17 bridge. On 24 May 1990 a Minor
Modification was issued to the Town which involved the type of pipe which was
allowed to be used.
During a pre -construction meeting concerning the permit on 24 January 1992
it was brought to the Division's attention that from station 7+25 to station 8+20
on the project plats that the contractor my need to excavate the pipe trench with
a clam shell bucket instead of by hydraulic jetting as was authorized by the
subject permit. The Town was told at that time that such a change in excavation
method would require a modification of the permit.
Enclosed are the materials that I have now received from the Town and
Rivers and Associates requesting a minor modification of the permit. As you can
see from the attachments, that if a clam shell is used between stations 7+25 and
8+20 that a trench 15.5' deep will be excavated on a 2:1 slope which means the
trench will have a 66' top width. It should be noted that if the project is done
by hydraulic jet the same top width, depth, side slopes etc. should be expected.
Also, as can be seen from the attachments, the spoils will be placed at property
owned by Moss Planning Mill Company on the north side of the Pamlico River, just
downstream from the project site.
Terry and I have discussed the project an agree that the proposal should
be handled as a minor modification of the permit. We do however feel that the
DEM, DMF, DLR, and NCDOT should have the opportunity to comment on the proposal.
Through a copy of this memorandum I have forwarded a copy of the proposal to
these agencies and have asked that they comment back to your office no later than
two weeks or by 17 May 1992. This will hopefully allow the Town enough time to
continue on their present time schedule to begin the project on or shortly after
1 June 1992.
If you have any questions do not hesitate to contact me.
cc: Jess Hawkins
Jim Mulligan
Floyd Williams
Ottis Potter
Dave Letson
Pres Pate;

R I V E• R S A N D ASSOC I A T E S, _ 1 N C.
E N G I N E E R S/ P LAN N E R S/ S U RVEYORS
_ G R E E N V IL L E, NORTH C A R O L I N A' 2 7 8 3 5
Since 1918
April 27, 1992
Mr. David Gossett
N.C. Division of Coastal Management
P. O. Box 1507
Washington NC 27889
Subject: Chocowinity, North Carolina
Proposed Sewer Crossing the Pamlico River
CAMA Permit No. 229-89
Rivers No. 90378
Dear David:
Per our telephone conversation of last week, please find enclosed a typical cross section of the
pipeline trench from Station 7+25 to Station 8+20 as might be necessary if clam shell
excavation is required.
As stated in Mayor Williamson's letter of April 16, 1992, a minor modification is requested to
the CAMA Permit to allow clam shell excavation. This request is made due to the depth of cut
required between the two channels passing under the Highway 17 bridge. The river bottom
between these two channels is somewhat higher in elevation than other areas of the river
outside of the channels. It is not known whether this higher elevation is caused from channel
excavation spoil material or from sediment due to a quiescent zone formed behind the bridge
fender cluster piles.
It is proposed to attempt installation of the pipeline by hydraulic jetting as originally permitted.
However, should that prove unsuccessful within this particular area due to the depth of cut
required, it is desired to have a permit modification in hand to allow excavation through this
area so that the installation can be completed without project delay. Please advise if additional
information is required.
Very
you,
Marvin E. Garner, 7r.
Associate
MEG/dj
encls
cc: Town of Chocowinity
MEG/LGossett.427
107 .EAST SECOND STREET • POST OFFICE BOX 929 • TELEPHONE [phone]

RIVERS & ASSOCIATES, INC.
Engineers/Planners/Surveyors
107 E. 2nd Street P.O. Box 929
GREENVILLE, NORTH CAROLINA 27835
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CALCULATED BY 'I`DATE
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C. A. WILLIAMSON, Mayor
JUANrrA BAYTALA, Clerk
GORDON EDWARDS. Police Chief
7ovon of
Dnc�pa aW to 1959
Phone [phone] -:- P. O. Box 145
C6 =tii ;ty, 9VA Carolina 27817
April 16, 1992
Mr. David Gossett
N.C. Division of Coastal Management
1424 Carolina Avenue
Washington, North Carolina 27889
Subject: Tbwn of Chocowinity
Sanitary Sewer Project
Force Main Crossing Under Pamlico River
CAMA Permit #229-89
Dear Mr. Gossett:
Pro Mayor, M. L. DUNBAR
JAMES M08iEY, JR.
ARLENE JONES
WILLULM J. ALBRrrrON
In accordance with the outcome of discussions held during our January 24, 1992
meeting at the Tbwn Hall, The Town of Chocowinity requests a minor modification to the
subject permit which would allow for excavation and removal of up to 2500 CY of material as
an alternate method of pipeline installation between approximate station 7+25 and 8+20 as
shown on Exhibit B of the original permit application (copy enclosed).
We have negotiated with the Owners of Moss Planing Mill for placement and spreading
of the material upon their property. Enclosed is a copy of a letter from Mr. Tbmp Litchfield,
Secretary/Treasurer, concerning placement of the material. Also enclosed is a aerial
photographic indicating the location of the site.
Our contractor intends to make every attempt to install the pipeline by hydraulic jetting
as currently permitted. However, we desire to have this alternate method permitted in advance
and available to our contractor if necessary.
Should there be any questions, please contact Mark Garner, Rivers and Associates, Inc.
at [phone], or myself.
Thank you,
C. A. Williamson
Mayor

VERS AND ASSOCIATES, INC.
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RIVR porroM AND 6-.
MIN. £BELOW CHANNEL
PROJECT DEPTH
J'
3'
{
4'
/0"DIP
TYPICAL CROSS SECT/ON
.SCALE. -I = 5
3' MIN. I I I
EX/STIN6 BOTTOM 1,
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PROF/LE VIEW
SCALE: / = 000 HORIZONTAL
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PROPOSED /O D. /. SEWER MAIN CROSSING
PAML /CD R/ VER, U. S. HW Y: /7, WASHINGTON
` SCALE: AS NOTED BEAUFORT COUNTY, N. C, SHEET 2
TOP OF PIPE
STATIONS
FD+ 5 - / 6- 89
CF .11
N. C.
EXHIBIT B
CAMA-6