19940363 Ver 1_Application_19940420

APR 29"_ gq 1-i ��Af
F 1
State of Noz th Carolina
Depax tment of Emruonment Health and NatuX al Resourccs
Division of Fnvironrziental mana4emuj.t
Bo-,,, 29535
i y
a�"' �� ►rJ �S� �` Ralcigh, North Carolina 27526 -0535
iWATER QUALITY SECTION ,
FAX [phone]
TELFCOPY TO
FAX NUMBER IV' cf
NUMBER OF PAGES, INCI✓UDING THE COVEF SHEET - 1_(- -)
A:,__0
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APR 210 194 10 2Hari ' 2
�- -- iMK- - �a i ut ! u I Ili U l ( I ,iJC �UH� THL r lGr it a7 TEL USCCiLI F UL(1-AIQ 1 �_ -1 ',� pb fF F1 02
04-IS-1994 12 02 -+41 6�u5
MEMORANDUM
TO: DIV gaiiegh
Char ManagOment ,
Moorhead City
FROM: was Sykes, Chief, Environmental Branch
USCG FDCCLANT
DATRt 4/15/94
SUBJECT: Remodial Action APprovftl
Shorolino groaion
USCG base rort Macon, NC
1. There are five items of concern, tour cf which we need yovr
approval /conourance
a.
have boat
th�snactiona a
andno
tuxther approval is required.
h. Remove send from i,)ehir.d the groin. You navE, -Lhs drawings
that show the limits
aca of
C. thaQrevetmenttI=upnto 8n$slevatiotio+Ofr9t feet lNGVD' f Removal
of the silt ranee.
d. Regrade behind tho xeVetmant End oxcavate a smell trench
immediately landward of the crest of the revetment to
prevent rain water runoff from crenaporti.ng aadimt~nt from
the disposal area to the heacil,
e. Abandon efforts to ostabligh marsh graa2 in tho
intratidal zone.
2. Wo will me$t you un site to discuss futher action required,
Thursday April 21, 1994 at 11:00
3.
Let
me know when
and if a formal xequsbt is needed.
4
My
phone number
i9 (804)441 -6042.
4/ Iii 1w
Post -It` brand lax transrrjjttei memo 767► •G�PS899
From
d
Dc"
9
If 3-/339
Filc3 <SYkE5 >FT Mac.0n.p9xmiL
wed Sykes
Chief, Environmental Drnnch

HPR ZO 194 10 2GAM
4_ l e4 -a l JET FROM HOT-FA-1'1 - N i LHr)
I I Nlwl -Il 1004
Mr C,' -' I ce
U 5 (,uas( tivaltl Facllilic, De,I1411
a id C onstrtlCUOn Cen(Cr - Atlanti,
5505 Robw ( Inna Road
SUILC'. K
Nortl)lr Vlrklnla 2151
Rt 11 S Coa,L Ctuald Croup, f or Macon IBC
lira[ Basin Sllblllzitton Ploim
BJ06 Rt vetment and Vc- glet'ltivc f't rtl*ZOe
1 C5 ' P 3 1C: f= 1
® Iq MOFFATT & tiZt;HOL
L-
L
Dcar Nl r I e!,
I
t olla \ \In my rmGenng \ \Lrh vote and the 01-,T5 c't F0,1 �� ?CCt1 0'1 �I LruI
1110 7II(_ on 1 htlrscldy I0 NAJ {fC11 C)Il 1, e SeCJtr�1ll t1C�J�it�i1 1 ,t'ac ?rCLtll h'1 CcJ h\
Lit SIl \'.n Rrc)C1nte U`'\�lrtll C3rOl1Pd 7tC'1C U1i1VL'ISlty �.11l`l1 {! 1 l)17`,C1�1tio
111 L- l"1109S that occurrud 6urmg [)lose rrlccungs, I wclu`d ],l (.emu Ot''_r th, Il)IIWA11.2
\111scrvatlons and rzt.,onlmendtmotls abouL the sh(,i., L)rOtL.L.tI,In Pnrtim, of tl,c I r,rl
it -,4t!" project Ur Broome (, (,onullents nil tree nroju -t r x, LAC t -Tirld 111 a JCL \'1 ll
lilt MC, ILA TA W latt L° '\ ICI101 which we �-ttvC fltlach,.
I
1 Doll, i!io 1 cite tuil�,ijOT)M! C \c11tly LIS ,11C)l %kerC U�'Ilt ',:L 1 h ',ill -'t L-) fl ?I
Ill', pro pCrk Ilnt. 1411, SOCCCSSfUlk ,'ef)araicd me (ct ,l�t "id bcl' 11 'M 1 Lht, 11rL'C`
llllnral S1Slcm U" ,!I,, romiOii or the Islan'.i
Ur (' Ind QC Docket beaJ1', bctwL;en the t,�\O gro '1 , T'ltc \\,1', 111L, Ltl Lf t,i 11L.
uC,l Jn -ini [hl, i- onclttion shQUILl renvi,n as long ,l, '7C) li 1C 11 Antl d(t + llo1
ICltlh 111.1(1 lal)drll( 01 tl'LLr We'ltzlll fa'rO'il SCI M11t llyl)IS)10?_ \ \01118 !),r-1 l IQ (It LLII
r11r r_ I (, ('CIICallnll tIl Ll Ih'., \`11I
hL, it rrC1�)lt„l l i �_,�t t'hll ILI(lltt
ill. ca;,cm s:roln -it the bi,t( b;l,ln i, also working dolt, )crl II II Ilad n,t,n
y I)llllt all Oi 01C S alli \ \dS}1Cti Ilom tht, rcvetm(mi.'Y'WIt1 il,. \t_ L\_tl) Clc Ln 1I'L
1 'b I I tr - - X, 1, ^ no (1'' NO W1 rclrclirl1 'r' 1' (u ) . I ' r 1 I i f r ,

APP 20 '94 10 27A1 t
_G1 Ott FROt- i -
\'r Cm I Lce
i 1 IM 3 r,, hi 190 ;
I J - I
f 0,t N1aoil I t.%ctrrlcnt and VCCC �tl\u Plant)l,es
I pa, o Z
L,'s111 1 Ills "roll` Ova, dCSlgllcd, ho\ \over to ic:tnin smaller clLIL111 tres 0 ,,'tool
\\lllc.h h Ight be \3shocl from tht rc,, �.Iment ttrld heat.], whllC the vqv, t,tt' "L cowl
%%3s cro\ving anel heLOIllMn CstAIIlt IlCd We I11'dL the: groin a, lent AS f,r:lc[IC al
\t ;h ut unrtCCCSSarIIv Ineerierl1lg \\'th boat trsiffic entetulg or lcavmg the, b`ism
} ,Ir'th'-rmorc, the drf,tl,s bcvon,} th;, tip ofthe groin t ill Off su that
e\t�.oderlg It mach tarther would have r%rjumd a more robe -t stulutulc Ind h,f_he-
constm,;tton Last' TI,e,ctorc, tho final Icilgtlt c ild urier tatlt "1 \vcrc u it -It \.L
behevcd to he tliz best trade ()il at the iime bemeen tfists ind saT16 re U1111lnL.
call it
It
3 f lit Spurlr w rrlrriraylnra foal Spuirrncpwcrls marsh pl,tn1111gs clear!\
I,(,' heed successful Ind LhI, has ILd to the current t,lt)hlc,n We under, t,mi d diet
thl.re asL� at leas) t\\p factors wrm ll have also contributed to file problci-n Fir,t 111iC
contractor origin.11IN placed quo Inches of srltld cover but tile] not plant the gran,-
1 c(urc a �tomi \vashcd the (,aml iwav subsequently to be ttaopcd by the c i5telle
PrUrn sec orld, 11101c sated x"'m pll�ed and the gr.55 waN pl inted In 1\uQ11,L Weil
utter the optirrmmi plantmY setisorl Frill and Nmintcl storms htl\ t laruck r:'tl <1\ccl
tilt ,Prdltrlt;S and thlS lift of sand Thr, LJLI,cd a kirl,c inlll r nt sa id \\h Ch
ov,.n.hclrrlod fhr earttr,i groin :end al'wwcd the, -nd to mo.ie into tlie, ba,in
4 During oL,r lleid IrlspzCticlrl we not], td tl I`ew planuni , ,tlil hole]' -ig on .It n°
, vremt uppIr, and 10\ \err Clel,atl(1115 Ut the SVO11r,1rl /tsi1C 1 ! ", are 111 f,e1(,r shape
howevcr, onJ It dt>C,rl t tlopCnr th t t1,ev arc, going to thrivt• Thetr cori(l'tion
rerm-istcot of tllc test I11a11ung5 IV the sttrllmor cif 1901 1 have
Attached It copy of Dr Urcomt , r11e.'nor,andum of 'I 1 lure 191)1 \,,hICII u,rt,irna Ilia
c�lts�r \, Hors abOU' tilt, results of ch=it lost The ressonable ert,rlLlu,,mi, is thm Ihkf r,
Ii too, r11uc.l1 l\a\IC C'1Lrg, at this s,te 'o allow mar,h rr­,scs icy ohs t'n .t i o;0 nna
cr -\V 1 hey probably �L7r1 1\ l' .' In il,e upper and 10VI Lr rctlCllcS of tnL '()nr I,c,Lal Se
th,; w`n\e encrg\` OrILC -,I it o'1 falls off rapidly the line \\hcr, file V ^Vc,
.0 turtle\ h -c ll,
i
i r'nnvcrsc.l; , (ht_ dunL Ertl;,, 111,inlitic` It lhl; highci ie 'ctlnotlt Ll �, 'tie "1, a;�{�t.�r
ht,tllhy ,tn l ptzt5tll for t�,lrnit. c�nl\th I Ills is de"PI(c thelr Ilavtrtg bci. n plant",
I,Iic In trio growing season in Ihe_ .11,11t IlCe- 01 Oe�er (1-0 tun \ \L t\Oltlll C.1,cCI t }1l
dLiM, Cr,.,ss plant,Rgs Iu t0k'/ Ile ;LCCCS5fl1} Y�I11Urt1111 !tell, the tlk,lnl, 11� I(OtLCI IP
1 '1 I iyt.r O cd 'l' on the ': ttl,lFllt bloc] s NhtL1, I, 110- i c( :110 ;1, 1lt In
t,\, the tci,jpor1r) 511[ lint— PttrllnnS Ot till; 1, ellt 1) I\l �t� ,U� i II�L," irll'
thL r(_Y Will p170b,1111', Ct,llafly4 C'V:r ShC ^t_ \t ,e \crnl mow S WhCn the +r1rifl )°
lllc d '-ne gfa,s 1]x.1 itlIIQ5 it'd the rem,imi t' -,anti \vlli SlL \v1,' bt �.,i 111 11.1,13V h \'
\Vtl1 C,, \0, I( h hrl,A ind —Jr- ' } the. ICVr'I`1ICIl( (llirII)" Ills it "lit,r 1' \ LI, ,ll,tt 51�1ri1"
P a- ,

HPR 20 'D4 10 E7Htrl
t1.aK-1 i�Ji 41 t7 , r rVi.
fir Cnrl Lec Fort Macon RevLtn,ent a =id VCgCtacl%e l'iarltit.g\
i Maio) 1991 Page
Tllticfore, the dune plintictt,s dcr)rivt,d of the support and protcction Nklltcl' ""Oulu
hri%e been pro~ ided by the missing band of marsh gra,s, Ji0 i ld ulti,nmLly h,
z \pCC(ed to wish WSLY as SCH Of com5a this will add to the jn-ohle.11s that
,drrRdy exist ind will comnhute tO future matntVnancc, prol,ie 11s
a ujQtllrilciltlatIon,-,
Mnkc no fu,thcr uttempt to establtsh marsh grGs,, vetetation s{ tht_ tntrihdal "Old
i�\r+erimciital plantmg, i,l 1941 mild project plantings s,l 199-3 hnth 1; iced ,n sl,nil -ir
f-ishion al}hctuth Ili-, 1993 plantings were undtrtakc.,i in Icss than idC11
cireumstaliccs Th<.c ,s prohabl�, too much vave Caen,~ 1ci, marsh gr 1, "e5 ti,,
,,ur\,,vtc and prosper 5)MLc thG C'ontractor's bid inc.ludtd a rcowitW second
replanting if the Inwal wrzrwipt fatted, we recommend that you the
onirauor of this icspon obilw, Ind negotiate a ciedit which (,,in he ipplicd to
excavating a,1d dredgui!l the sand that has built lip Or Rioowc, in hi,, n141110 to
Lis, mentions the potitithihly of success within the w-i\ c 5hjdwk Lone ut the g,()111s
Thi,, might be ;onsidcred in the futon as a finshir,e touch 1(-)r an cithestiv sc stable,
residual t.11at «OUid torn Lj;4-imst the east gro , The o �cra'I furpci \C of the
timjc.ci, ho�kcvct, i, so ,zabilizC the entire sholeface bctvtieen tl e i;;raills
Vegetatit,n is .lot a vi chit option to achieve thi% end L'Lcn the prtitr�t's +v
EN DOSurc
' umove the mccumulated sand acanist th, easte"l groin, dredt e the sand o hick hay
moved into the hasio al,)unJ the gio,n, and scraps- as much sand a,, possiblc oft the
lowe, portion-, of the rcvetirlknt glum available fund~ f his sand shOU'd he
d vo,ed of it any comement alid available mamici
Recont`8urc the e, ist g done plantings to prcvcnt fucute dc�'�tdMion u,ct loss Ot
5-md frolrl Ow slops A5 de,crlb--d above the plaits aj,jlea tc, h< hcatt,, rnd \iloLid
begin to crow r.ioi(,'l\' ,I ti,e \' etcher x-rrnq 0u) recor im(, rid�ttio, 1 °5 ,V t.arC Lill"
hio0c the \, rid I i\ cr otL ,hc rest- liucnt from abov(; M)1'e the r lm' ire [T , pt
and spread inn ` iml' SZZdh ii, 'lit dare an he tot? of 0, dt\p— I site in a la so � \
to twclvc Inches luck Somt cif the pl<irim may PLrl-n but 'i., m fora) Am d
survl.c, to low in 1V quatc vLCe.;,tive cover'il the mp c,l Iti- ,it, 011CC
established dUS CuSer \W1 unlit QnOfFarid erosion die to',C,vv raid ell k
shnHow wale x the Q Ot tilt_ revetment blocks 1ti.1s Lil5o nit ritioncd mirii,c; cmr J
N1,i_rch nc ding hc- iritl. znclorae du5 cnnccpi, s -n( t it "out ' bean c\c. 116ni
u .iv tci pt.ve 11 a 1\ rcnl 'tntjL -Unaff hom carrj Itll? ,Ind dci\{ "1 the If vUtnle,t Vd
(11ho the beach
F c -

HFP 28 '94 lit 28A 1
' t o J a' P G' „c �
�nR - ' �a OR ` ta0” tin? - FAT I - N t C �t
1
fI
1
`ir C,art (ee I -n;t Macon r\C%ctmc,nt ,end Vcutott\C '1'Irltl IQ,,
11 March 199,
Y
4 fhc L07-11htnatton of measures %kould to our ohtnton, alley —lie the current
nrnhlem and should mint =nt7e (uturc rnatntenance p;tthl�tll� III Imc Nviih oriquial
(Ic , Ian t,Ite,it ons I
It you have h,))' (Jue�ttUl)s about thc�Z Ul �crvat on; �,,id tern nm--ndlttonS \I C(% Auld hC ll1
tI'pp,, to provide - iddltiowil clartticatlttn
Vt^_f� trulti �ot,rs, � �
MOFFATT & NK 110L, 1vtiC,I`!V LRI�
� o h n R
S,!mor Coastal Pngtneet
I
-- lttacttrrt , ",

riANf
k
AFF C-0 '94 10 23HM
-J1 jq -i FF'O11 NIOFF\1f NICHJI
1
k47R0X'4� -dim : ,
TO: Xr_ Jo2m LC ilr,
Naf-fat and Nichol Engine.Q -.r-s
Frou: Stephen W. Ezoc7mQ
))ate. Max-chL 11, 1994 J
F' I
Subject: Sand rmov -,s] ram t b s conex eta xavNtnant 17 t t
Fort Mac-an Coast GILZ>. station �
x W-a observQd on X rob 10 , aa-tid that wail us ed to d ovxr thA
Con t
ar-ea mat zevct Last has ba-cm, and is cotstirLlai ng to hr,
traxLeportad Iatl o the boat slip- Tha at-tempt to ata,biliza thp
i_ntartidal zone by tr-a.n..Tolant_i -n5 2zalln r-ck wan not
xrUc-cass4fIU . We aoncxudad ;.0 1991 ( zt-at i. in a memo to Kt: Tony
Young dated J'axsv 21,19 91 ) that the sav r r* va a c Lira,_ t g a t —�
nit& VMO-tl Z.�ait t2� afLect.Lvar-egx cZ inte -cc dmz vagntatior,-
i
Tt appaarz tba.t at tb-iz; point in time tkis 240at practjca1
tsltarnativa to a110via.t,a the prrobl(m iz to re3iova a_U of tbA sand
frvau tJam ravattatcnt and place it on th4 ap3.6nd. Tha Amarican
bcacbgrmow tbat vas plant©a ahcrw -t 3.5 ft. Qlcma't1 Un in it v-s-y
g00d condition. 7Z.Qne Wantig could be 3naintzJxj. ,d by piLUinq the
planters and rrpl.anting al'L- r the sand is m(nvV-d. Anc)t. t>_cr &jtexn.a.tive
is to a- araz`ully push tha sza , vzth the plants In VIMC-e, back:
toward the uplAnd usl.ng a bu- ldozer blade. if ,th.ix is done b<3fory
the P-nd of Xas , n wuffIciosct uumbtr of plants and rha zc=as should
rirviv© to prodiac-ae good cavur- When g7COwrh E- Qzuaars, approPriats
fertl -lizax shouJ4 be applied. Any rapIz.nting that J-.q nced.ed &b.ould
be doze bc:twcA � Xcvonbar and ttrd and of March.
In the futuz e, plashing AMAZ== rlanl in the
iz.tertl.da -1 zorw should be cones -dszcd agi�Lin. Tlae protrC�Lxon
provided by the grvizL =ay esubIf- vQgetation to :-urvive on at
laast prixt Of the axon. T-W 19 option old be !catad by
again planting w vcx-z1 Fall test plots to de euvitinI
and gx- o� potantiz .

AFP -20 ' ?4 10 22bAM
Captain R F. Silva, P.E
Commanding Officer
U s. Coast Guard Facilities Design and
Construction Center
Suite K
5505 Robin Hood Road
Norfolk, virginja 23513
Dear Captain Silva
P
On March 2, 1994, Messrs Tom Jarrett and Bill Dennis, of my
Coastal. Engineering Branch, net with Mr Carl Lee, of your
command, and other Coast Guard personnel at the Fort Macon coast
Guard Base to discuss the harbor siltation problem. The rate of
shoaling in the harbor has apparently increased following the
constructloeof works specifically designed to reduce harbor
shoaling
The plan to reduce shoaling in the harbor, which was
recommended by this office, consisted of the construction of a
concrete sheet pile groin rear the base's nortnFrest property
111je, 600 feet of articulating block revetment extending from the
groin to the entrance of the boat basin; and the planting of
marsh grass (Spartinia Alterniflora) in the intratidal zone and
American Beach Grass on the revetment face. The plan constructed
was essentially that described above except for the addition of a
second groin, locatea at the entrance to t3ze boat basin. Also,
based on the recommendations of an agronomist employed by the AE
firm which prepared the plans and specifications for the project,
me revetment was bur led under. a 6-inch layer of sand in order to
provide sufficient cover for the propagation of the American
Beach Grass. The add-Lt.io-i of this quantity of sard or the face
of the revetment differed significantly from that reuonmcncled by
this office which called for the placement of 1 5 cubic yards of
sand per 200 square feet of revetment This quantity of sand,
which is equivalent to a sand layer about 2 5 inches thick, would
not have completely buried the block
Weather co, dltions on the day of the 17eeting diu not permit
_ an inspection cF thL? pro]ec;., however, Mr Lee and base personnel
provided an excellent description of the site conditions along
with photographs of the area during ara after construction
Based on the infoin2tion provided at t`?is ;ieetinq, the increased
DEPARTMENT OF THE ARMY
N /Ii.tAiNGTON DISTRICT CORPS OF F"GINFFRS
1
-r
P O BOX 1890
VVII.,MINGTON NORTH CAROLINA ?$402 189C
March 14, 1994
IN REPLY REFER TO
Coastal
Engineering Branch
Captain R F. Silva, P.E
Commanding Officer
U s. Coast Guard Facilities Design and
Construction Center
Suite K
5505 Robin Hood Road
Norfolk, virginja 23513
Dear Captain Silva
P
On March 2, 1994, Messrs Tom Jarrett and Bill Dennis, of my
Coastal. Engineering Branch, net with Mr Carl Lee, of your
command, and other Coast Guard personnel at the Fort Macon coast
Guard Base to discuss the harbor siltation problem. The rate of
shoaling in the harbor has apparently increased following the
constructloeof works specifically designed to reduce harbor
shoaling
The plan to reduce shoaling in the harbor, which was
recommended by this office, consisted of the construction of a
concrete sheet pile groin rear the base's nortnFrest property
111je, 600 feet of articulating block revetment extending from the
groin to the entrance of the boat basin; and the planting of
marsh grass (Spartinia Alterniflora) in the intratidal zone and
American Beach Grass on the revetment face. The plan constructed
was essentially that described above except for the addition of a
second groin, locatea at the entrance to t3ze boat basin. Also,
based on the recommendations of an agronomist employed by the AE
firm which prepared the plans and specifications for the project,
me revetment was bur led under. a 6-inch layer of sand in order to
provide sufficient cover for the propagation of the American
Beach Grass. The add-Lt.io-i of this quantity of sard or the face
of the revetment differed significantly from that reuonmcncled by
this office which called for the placement of 1 5 cubic yards of
sand per 200 square feet of revetment This quantity of sand,
which is equivalent to a sand layer about 2 5 inches thick, would
not have completely buried the block
Weather co, dltions on the day of the 17eeting diu not permit
_ an inspection cF thL? pro]ec;., however, Mr Lee and base personnel
provided an excellent description of the site conditions along
with photographs of the area during ara after construction
Based on the infoin2tion provided at t`?is ;ieetinq, the increased

APP ao 194 10 __9HI 1 F a
-2-
y
rate of shoaling in the harbor appears to be directly related to
the erosion of the revetment sand cover and the influx of sand
from the dredged material disposal area located immediately
behind the revetment Material from the dredged material
disposal area is carried to the beach by rain hater runoff. At
the present time, all of the sand that covered the revetment
betweer high water and the limit of wave run-up (apprOxIMa�.e
elevation 6 feet above NGVD) has been removed. Also, gullies,
leading from the disposal area to the beach, nave formed in
several locations along the revetment To date, the vegetation
planted in the Intratzdal zone and on the revetment (where the
sand cover still remains) has not taken hold. Given the sever--y
of the wave clinate in the area, survival and propagation of tre
marsh grass appears to be unlikely. The American Bea= Grass,
planted in the areas where the sand cover remains, also has not
perforried well
The survival of the American Beach Grass on the sloplrg
portion of the revetment depends on the sand cover remaining it
place However, long - terra retention of the sand on the revetment
slope does not appear likely given the frequency of storms jr the
area that can produce tides and ,raves sufficient to erode
material from the upper portions of the revetment. For example,
a 6 -foot NGVD storm tide, which is only 3 feet below the crest e}
the revetment, has a return interval of less than 10 years in
this area. This storm tide, coupled with waves 2 feet high,
would be sufficient to erode the remaining material from the face
of the revetment
Based on the above evaluation of the causes of the increas('a
shoaling in the narbor, we do not believe tnat drastic reasures
are called for at this time Rather, the followal'g interim steps
should be taken, and the results evaluated before any dec_sions
are made concerning aadit,onal corrective measures
RECOMMENDATIONS
1 Remove the remaining sand cover over the sloping face of
the revetment up to an elevation of 9 feet NGVD.
2 Remove the sand fillet that has formed updraft (1 e
northwest) of the groin located adjacent to the boat basin
3. Excavate a small trench immediate)y landwara of zh,�,
crest of the revetment to prevent rain water runoff fron
transpor-!�_Ing Sedinent fron the disposal area to the beacn

r _
APR '20 9-1 10 29Fil 1 P 1� 1
-3-
4. Abandon efforts to establish marsh grass in �,De
intratidal zone-
5 Continue efforts to establish the American Beach Grass,
but only along the crest of the revetment landward to the shall
trench recommended above While wind- -blown sand may not be a
mayor source of shoal Material in the boat basin, the Airerican
Beach Grass would prevent wind- blown sand from reaching the
harbor from the disposal area and would 3mUrove the aestnetics of
the area.
6
Reestablish
pro)ect
depths
In the
harbor.
7.
Continue to
nonitor
depths
ill the
harbor
if you are able to implement any or all of these
recommendations following a suitable period of observation (3 ''ro
6 months), Messrs Jarret4 and Dennis w111 be available to review
the results with you. if, in the interim, howe,rer, we may be of
additional assistance in this or any other matter please do not
hesitate to call i7
six( rely,
i.1
Georg_ L Ca3i 1
Colo el, U S. Ar
District Engineer