Resolution 237-1985
RE,SfDCUtIfDN NfD.
237 -1985
WHEREA.$, the BfDARD fDf t~UNty tfDmmI,S,SIfDNER,S fDf mfDNRfDE tfDUNty, fCfDRIDA,
has receivea an application from HfD~ KEY PARtNER,SHIP
,
ana
WHEREA,S, in compliance with ,State ,Statute, it is necessary as part
of the permitting proceaure to reaa the fOllowing Biological Assessment
into th~ Recora as follows:
~".
The appli~ant proposes to construct a commercial marina on his property,
including a ~ry storage shed, a 50' x 25' boat ramp, and a 42' x 24'
forklift plafform for boat launching.
Also proposed, is excavation of 2 areas immediately waterward of the ramp
and platform locales, 64' x 25' and 22' x 24' respectively. Maximum depths
of -4' MLW are designed for both areas. A total of 205 cu. yds. of material
will be excavated, 120 cu. yds. waterward of MEW. This total also includes
a 40' x 25' circulation cut through an existing spit at the western pro-
perty line (to a depth of -2' MLW).
An existing dock will be removed and a new docking facility constructed
to provide eight slips. Said dock will consist of a 68' x 4' access ramp
and a 100' x 4' docking area with a 44' x 4' terminal "T". The dock is
to terminate in 4.5 ft. (MLW) depths. In addition, eight (8) associated
mooring piles are proposed on 12.5' centers. Baffleboard type structures
are to be installed along the end of the dock for dissipation of wave energy.
Details of the proposed launching structures consist of the following: A
50' x 25' areal surface of concrete will be deposited for the ramp construc-
tion. The forklift platform (35' x 24' concrete dock) will support 2
wooden finger piers (20' long) at the waterward end.
The project site is located on Hog Key within the western limits of the
unincorporated City of Marathon. This Gulf-front region is characterized
by intensive development, primarily for commercial interests (e.g., fish
houses, marinas, motels, dive shops, restaurants, etc.). A limited
residential population is present near the western border of Marathon, the
majority in mobile home parks, private clubs and condominiums.
The shoreline exhibits severe discontinuity as a result of previous dredge
and fill activities. Numerous canals, basins and finger fills are present.
Surrounding waters of the Gulf of Mexico are designated as Class III waters
of the state. Effective May 8, these Monroe County waters were classified
as Outstanding Florida Waters with the Florida Keys Special Waters boundaries.
The Fanny Keys are located northeast of the project site; Boot Key is to the
south and Knight Key to the west.
Knight Key Channel is the proximal major navigational waterway utilized for
access between the Gulf of Mexico and Hawk Channel. Said channel is crossed
by the Seven Mile Bridge.
A small marina basin is located to the west of the project site and private
residences are located to the east.
Specific site features include an irregularly shaped parcel of land exhibiting
approximately 120 1.f of water frontage. A small spit of land which terminates
as a boulder jetty extends approximately 130 ft. waterward to the northwest.
Said protuberance roughly runs along the western property line. The southern
portion of the jetty at the junction with the mainland (proposed circulation
cut), is vegetated by 4-7 ft. tall red mangrove (Rhizophora mangle), black
mangrove (Avicennia germinans) and white mangroves (Laguncularia racemose),
with a ground cover of sea purslane and beach carpet noted. An old pier
extends in a westerly direction from the base of the spit (on the adjoining
property).
Resolution No.
Hog Key Partnership
Page Two
The remainder of the subject shoreline exhibits a relatively gentle slope
with little erosion evident. Scattered buttonwood, Brazilian pepper and
Australian pine are found along the shoreline, as well as some boulders.
On the uplands, a dry storage shed is currently under construction.
Crushed limerock fill has been previously placed out to the edge of the
mangroves along the western property line.
From the MEW line moving waterward, wrack accumulation is severe following
extended durations of northerly winds. A firm sand/rock substrate is noted
in the shallow littoral zone (out to MLW). Past the MLW line (sublittoral
zone), depths increase more sharply, ranging from 3' MEW (at the landward
edge of the proposed dredge areas) to 6'(+) MEW at the waterward end of the
proposed dock. In shallower areas, 1-3' of accumulated organic matter was
noted. A relatively barren substrate was encountered throughout the entire
basin area except for the jetty periphery and a submerged 85' long ridge
that roughly bisects the basin (parallel to the jetty).
Lush algal growth (specifically Caulerpa, Halimeda, Penicillus), scattered
coral colonies and prolific finger sponge growth was noted along the ridge
and jetty borders. Numerous fish associated with these areas (especially
prevalent at the jetty) included french angels, parrotfish, grunts,
sargeant majors, damselfish, beau gregorys, barracudas, gray snappers,
majorras and pinfish. No grassbeds were found within the project area,
however, lush grassbeds are found outside of the project limits and to the
opposite side of the jetty.
Controlling depths of 4 to 5 ft. MHW were noted at the natural contours. The
customary channel is located to the northwest of the project site.
Short-term impacts of significance include the elimination of 1000 sq. ft.
of wetland vegatation (circulation cut site) and the disruption of a 2128 sq.
ft. area for ramp and boat launch (forklift) facilities. Resultant temporary
increases in turbidity can be expected. Also expected are significantly
elevated levels of suspended organic materials.
Creation of the circulation cut should aid in a flow-through surface water
flushing pattern and a consequential reduction in debris and organic matter
accumulation. Such activities should result in a net benefit to water
quality.
No significant long term adverse impacts are anticipated as a result of the
project. The more productive habitats (jetty and ridge) should remain
intact throughout the project construction. Increased boat usage will
probably result in an increase of hydrocarbon wastes, fuel products, trash
and inorganic compound discharge.
Under the provisions of Chapter 403, F.S. and F.A.C. Rules 17-3, 17-4, 17-12
and 17-13, the project is recommended for permitting approval.
The following specific conditions are suggested:
1. Turbidity screens shall be properly utilized during all construction
activities affecting state waters.
2. Excavation of the circulation cut shall be performed after other
dredging portions have been completed.
3. The central submerged ridge and rock jetty (outside of circulation
cut limits) shall be preserved and remain unaffected by construction
activities.
4. No liveaboards shall be allowed at the permitted facility.
5. No fuel pumps or fuel storage shall be permitted at the subject structures.
On August 2, 1985, the Monroe County Board of County Commissioners adopted the
Hog Key Partnership for dredge, fill, boat ramp and forklift platform, subject
to receipts of copies of permits from the Department of Environmental
Regulation and the Army Corps of Engineers.
Resolution No
Hog Key Partnership
Page Three
BE !~ RE$~C~ED BY ~RE B~ARD ~F C~UN~Y C~mm!$$!~NER$ ~F m~NR~E C~UN~Y,
FC~R!DA, that the above Biological Assessment has been reao into the
recoro ana ouly consioereo pursuant to Florioa $tatute 253.124 by the Boaro
of County Commissioners of ffianme County, Florioa, this 2nd
oay of August
, 19 85
at a regularly scheouleo meeting.
B~ARD ~F C~UN~Y C~mm!$$!~NER$ ~F
m~NR~E C~UN~Y, FC~R!DA
. ~ ~\ -
By ,\.0. t\~..JI +N" ~~ ...... ~
IllAY~R
($EAC)
Attest: DANNY L. KOLHAGE, Clerk
L2Ji~4~i j)C
Clerk of the Circuit Court! I
Cuclen C. Pm y
County Attorney
(305) 2944641
_BOARD OF COUNTY COMMISSIONERS
Wilhelmina Harvey, District 1
Ed Swift, District 2
Jerry Hernandez, District 3
Mayor Pro tem Alison Fahrer. District 4
Mayor Ken Sorensen, District 5
o<~v~!: ~R~~,~..~E
Lucien C. Proby,
County Attorney
310 Fleming Street
Key West, Florida 33040
I, the undersigned, do hereby attest that all data
and information is complete in the package of the applicant
as follows:
1. County Biologist Report
1./
2. Resolution (HOG KEY PARTNERSHIP)
~
3. Application for Permit (Dredge & Fill
for Boat Ramp, Forklift Platform)
~
4. Site Plan
~
5. Location Map
~
6. DER Assessment
~
Date 7-/5-85
By~.Q~
',en 01-0
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PLAN t'ii, .G DE
M E M 0 RAN DUM
BY
To:
Kermit H. Lewin, County Administrator
Acting Director, Dept. O~Polanft~g~ and
Andy Hooten, Biologist ~ ~
Hog Key Partnership
Zoning
From:
Subject:
Date:
June 24, 1985
LEGAL
Section 8, Township 66S, Range 32E, Hog Key, Monroe County,
Florida. Zoned BU-2.
INTRODUCTION
This application, for the excavation of greater than 100
cubic yards of fill from below the mean high water line, is to
be reviewed by the Monroe County Commission pursuant to
Section 19-1ll(b) (4) of the Monroe County Code.
PROJECT AND SITE DESCRIPTION
Hog Key Partnership proposes dredge and fill activity for
the establishment of a dry boat storage facility on Hog Key, on
the north side of US 1, just entering Marathon from the Seven
Mile Bridge. This partnership recently received a Zoning change
(July 26, 1984) from the Monroe County Zoning Board so that they
could pursue such a use of the property.
The proposed activity is located on the old site of the
ferry landing on Hog Key. The applicants wish to construct a
boat ramp, a fork lift platform, a wooden deck of dimensions
150' long with a 34' "L" shaped terminus, establish 8 mooring
pilings, create a 25' wide breakwater composed of pilings and
tires, and excavate fill for the creation of a circulation cul-
vert. Such activity will require permits from the U.S. Army
Corps of Engineers and the State Department of Environmental
Regulation. The applicants are presently involved in that
process.
)
. Lewin/Hooten
Memo
- 2 -
June 24, 1985
The historical use of the property has left its marks on the
natural environment. The existing basin presently collects copius
amounts of detrital wrack, a condition which has left water quality
in the basin poor and has prevented benthic settlement by most
of the common algal and grass species. The applicant proposes to
improve water quality conditions by the creation of a circulation
cut to the west of the basin. Such a cut would remove a small
area of fringing black and red mangrove. This cut is where the
excavation volume involves decision by the Board of County Com-
missioners based on Section 19-1ll(b) (4) of the Code.
EVALUATION
Impacts to the actual basin area will be minimal based on
the activity proposed there. The ramp forklift loading platform,
and dock will result in little alteration of the existing shore-
line. Those construction activities are well within development
guidelines of the Monroe County Code and Monroe County Coastal
Zone Protection and Conservation Element (CZP & CE).
Construction of the circulation cut would result in an area
of mangrove removal; however, the benefits of improved water
quality derived from increased circulation within the basin should
be greater than the loss of photosynthetic productivity from the
fringe. Furthermore, it should be noted that this fringe of
mangroves is a secondary colonization on a small spoil bank
created from the original basin dredging.
It is my opinion that this proposal is consistent with the
Monroe County Code and CZP & CEo
RECOMMENDATION
Conditional approval.
1. Turbidity curtains be utilized during all excavating activity.
2. The applicant complete the project with the proposed land-
scaping plan, submitted by Randy Cooper on May 15, 1985, in order
to reduce terrigenous pollutants from the operation into adjacent
waters.
^1 :LO) 198,::
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MONROE
COUNTY
~
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PLANNING. BUILDING & ZONING DEPARTMENT PERMIT APPLICATION FOR
EXCAVATION, THE DEPOSIT OF FILL. OR STRUCTURAL ACTIVITIES IN THE
WATERS OR WETLANDS OF MONROE COUNTY.
1) Property owners name & mailing address
Hog Key Partnership
P. O. Box 696
Marathon, FL 33050
4) Contractor or agent's name. mailing a'!dr('ss, phone & certification number,
Glen Boe & Associates, Inc.
P. O. Box 34G6
Marathon Shores, FL 33052
2) Date
2/15/85
3) Phone number
(305) 743-5545
D '.,
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51 Legal description of property:
Glen Boe, P.E.
Cert. No. 17300
(305) 743-9121
Part of Government
Lot 1
Zoning.
8
66S
_~J-L-_
(if acreage)
BU-2
Key,
Hoq
Subdivision, __
Spction.
Tawnship.
Range.
Lot,
Block,
Street. road or mile marker,
1090 Overseas Hwy.,
Marathon
61 Describe the proposed activity, methods of construction & amount of material (in cubic yards I to be excavated or
discharged, Describe purpose & intended use of project.
See attached Remarks.
volume of
material
120
xcavated
85
landward
of M.H.W.
c,y,
filled/deposi ted
o c,y. 205
waterward landward
of M,H.W. of M,H,W.
c.y.
7) Name. address & zip code of adjoining property owners whose property affronts water way.
(1) Florida D.O.T. (2) Joe's Seafood, Inc.
3490 Overseas Hwy. 2771 N.W. 24th Street
Marathon, FL 33050 Miami, FL 33142
8 al List other permits issued and/or applied for, include applicant's name, for this site:
N/A
bl If application has been submitted for this project (or one similarl in the past, explain reason for new application
and give applicant's name if different from current applicant.
N/A
91 List all Federal and State agencies that have received applications for this project,
U. S. Army Corps of Engineers
Florida Department of Environmental Regulation
This completed application form will be accompanied by the
following, or it will NOT be processed.
a) Two (2) sets of drawings, on 8Y2 x 11 paper, showing location, plot plan, top view and cross section of proposal,
drawn to scale.
bl Application processing fee as follows:
$75.00 for dredge, fill, docks OR any structures affronting natural water bodies.
$30.00 for vertical seawalls on man-made bodies of water,
$75.00 for any combination of the above activities per site.
Application is hereby made for a permit to authorize the activities described herein, I certify that I am familiar
with the information contained in this application. and to the best of my knowledge & belief such information is
true, complete & accurate, I further certify that I possess the authority to undertake the proposed activities, All
provisions of laws and ordinances governing this type of work will be complied with whether specified herein or not.
The granting of a permit does not presume to give authority to violate or cancel the provisions of any county, state
or federal law regulating construction or performance of construction of is type of facility,
Q./
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Date
For Department Use Onlyl
d/15: (TO 3 9 7Wr,
Fee & receipt.
d' ;).:5.~S--6-~
Person acceptmg application & Date
Approved by Director
Cost of JJ/'rmit
EsUmntpd <,os!. of construction
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Hog Key Partnership
Boat Ramp & Docks
REMARKS
The Applicant is constructing a sma11-b,oat dry'storage shed
on his Hog Key property. To facilitate the use of this shed,
" he is seeking authorization to install a boat ramp, a hau1-
'out berth, a pier and eight mooring piles. He also wishes
to i ns tall a small structural b rea k w ate r to protect the
. .'
pro j e c t fro m c hop g e n e,r ate ~ by s t r 0 n g nor t h win d s. ( I n a d -
dition to the structures, the Applicant wishes to remove a
portion of an ex;sting"jetty. The jetty now acts as a debris
trap. If a section of the jetty were removed, the debris
", .
trap would be eliminated. ,'Authority for some minor dredging
" '
at the ramp and haul out berth also is being sought. The.
prpjectwill be built using both land-based and barge-mounted
equipment as appropriate.' , Spoil material will be placed on
theA'pplicant's Ui)'l'~i~d a'nci,' aft~r!dewaterirg, wql be,used
in fhe gradi ng of the grounds. )\Prio~to th..e star,t of' c.on- '
s t r u c t ion, t u r bid; t y cur t a i n' swil f;( be'" 'a e pr~'y e cl to i sol a
, ". ",~lj': .,:,', ;;;:;";'~J1iI?1~> ':>::'{>:";:;-",,,:;': '(.:; l' ~_: :~~(~;~\ .~._; ,?'~
the site from surrounding waters/"\'They 'wn 1 be'left
- ,', '''.' ' , . ,',;, .' :;,/1" ;>,,' :
until all construction-induced turbidity has ~ubsided.
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ADJACENT OWNERS
FLORIDA D.O.T.
3490 OVERSEAS HWY.
MARATHON, FL 33050
OWNED BY APPLICANT
JOE'S SEAFOOD, INC.
2771 N.W. 24th STREET
M I MlI, F L 3 3142
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PROJECT LOCATION
NOAA CHART NO. 11449
SCALE 1:40,000
LAT: 24042'34"N
LONG: 81006'44"W
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HOG KEY PARTNERSHIP
BOAT RAMP & DOCKS
0 100 400
i. . I d L l
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'SCALE 111 = 200'
LOCATION & VICINITY
SHEET 1 OF 5
.r.251 J.
e._.G._ .
. 'PILE/RUBBER
BREAKWATER
<~~;~ lftti;4'i~'F
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PROPOSED
CUT
C I R C 'u LA T ION f
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"on _~~1bJ .
DOCKS SHOWN IN
DASHED LINES ARE
EXISTING. ALL
OTHER WORK IS
PROPOSED.
HOG KEY PARTNERSHIP
BOAT RAMP & DOCKS
o 25
I I I I I I
50
I
75
I
100
I
PLAN OF NEW WORK
SHEET 2 OF 5
SCALE 111 = 401
HATCHING
PROPOSED
TIRE
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FI NGERS
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MARATHON SHORES.
FLORIDA 33052
(305) 743-9121
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SECTION A-A: PROPOSED BOAT RAMP
--
TOP +3.5 HATCHING INDICATES
PROPOSED DREDGE
,I:';
251
MHW
,
'+1.5
;.;0.0
251
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~CTION B-B: PROPOSED FORKLIFT PLATFORM
351
181
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CONCRETE
DEC K &
PILES ---..
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PIER
PILE
+3
+1. 5 MHW
, , O. 0 ML W
HATCHIt~G INDI-
CATES PROPOSED
DREDGE
SECTION C-C: . PROPOSED DOCK
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1461
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SECTION D-D: CIRCULATION CUT
ALL PILES, TIMBERS & DECK
TO BE CCA PRESSURE TREATED
MHW +1. 5
~1 L W 0 . 0
-2.0
;ff.~2 ,,"
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HATCHING INDICATES :' "'/ I..~..\~ ",III
PROPOSED DREDGE ' ~\':~ "~
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HORIZONTAL SCALE 3/32" =11 GLEN BOE &"/ASSOc',/'!'NC.
o 5 10 15 20 P. O. BO'X~/3406 <\:','."
~1ARATHON SHORES','
VERTICAL SCALE 1/8" FLORIDA 33052
o 510 (305) 743-9121
DATUM: MLW
HOG KEY PARTNERSHIP
BOAT RAMP & DOCKS
SECTIONS
SHEET 3 OF 5
.' ,.
1611
*
16"
ll,',"
IT..,,
61
,GUIDE PIERS TO BE CONSTRUCTED
':OF CCA PRESSURE-TREATED PILES,
TIMBERS & DECKING. '
1211 DIA PILES
2 x 8 STRINGER SUPPORTS
'-3x 8 ,STRINGERS
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1211 PS cOr~f)';-PILES .,---~
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DECK FOR FORKLIFT
HAULOUT ~
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REINFORCED CONCRETE
RAMP
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HOG KEY PA~TNERSHIP
BOAT RAMP & DOCKS
o
5
10
15
20
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GL EN BOE.& ASSq~\l I.'. ,'l(N,C .
P. O. 80)(,13406 <\'i'\>,I,
MARATHON SHORES .'; \'l '-,
FLORIDA 33052
(305) 743-9121
IIi.d
RAMP & HAULOUT PLAN
SHEET 4 OF 5
SCALE 111 =
10'
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PLAN
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CROSS BRACES TO BE
INSTALLED AT ALL
PILE PAIRS IN "L"
SECTION.
PILES 9" BUTT DIA.
DECKING 2 x 8
STRINGERS 3 x 10 'I
S T R I N G E R SUP PO R T S 3>J \ " t t U, ,'..'" i
W A V EAT TEN U AT 0 R S \.)4i ,;(', ,2 ". "/ /'
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-
GLEN BOE' & A'~SOC.. 'fNC'4"
, P.O. B 0 >; 34 d 6 I /:j ) 0 'i '
MARATHON SHOR~~ r" ' ,
FLORIDA ,33052"
(305) 743~~n21 () ;)f/l~
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WAVE ENUATOR
TIMBERS TO BE
ATTACHED TO DOCK
WITH 1" DIA. GALV.
. BOLTS. ALL OTHER
BOLTS TO BE 5/8"
DIA. GALV.
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SECTION A-A
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HOG KEY PARTNERSHIP
BOAT RAMP & DOCKS
= 10'
15 20
DOCK DETAIL
SHEET 5 OF 5
SCALE i" = I'
234
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DEPARTMENT OF ENVIRONMENTAL REGULATION
PERMIT APPLICATION APPRAISAL
County:
Monroe
Date: 6-6-85
File No.: 441000615
Applicant Name: Hog Key Partnership
Address: PO Box 696, Marathon, FL 33050
Agent (if applicable): Glen Boe
Address: PO Box 3406, Marathon Shores, FL 33052
Location of project: Section(s)
Range
32E
8
Township 66S
Section(s)
Township
Range
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Local Reference: Marathon, FL
Water Body: Knight Key Channel
Water Classification of Project Area:
III
Adjacent Waters,:
III
Aquatic Preserve: NA
Outstanding Florida Waters: Florida Keys Special Waters
:On site inspection by: T. A. Kranzer
5-15,5-17,5-28
Date of Inspection: 6-10-85 Original Application: Yes~ No
,Revised Application: Yes No X Date:
-Date of 2nd Insp.
Biological and Water Quality Assessment
A. Description of proposed project and construction techniques.
Quantify area of project which extends into waters of the state
(including the submerged lands of those waters and the transi-
tional zone of the submerged land) as defined in Section 17-4.02
and Section 17-4.28, Florida Administrative Code.
B. Biophysical features of general area. Include comments concerning
extent of development of adjoining properties as well as relevant
historical facts about the area.
C. Biophysical features of specific project site and spoil site if
. applicable. Include identification of bottom types and any
relevant historical facts about the area of the project.
D. Potential impact of project on biological resources and water
quality. Address long-term impact as well as immediate impact
for all aspects of the project.
E. Suggestions, where appropriate, for modifications that may reduce
or minimize the potential impact of project.
PERM l6-l0(Rev.6/79)
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HOG KEY PARTNERSHIP
#441000615
Monroe County - Marathon
Page Two
A. The applicant proposes to construct a commercial marina on
his property, including a dry storage shed, a 50' x 25'
boat ramp, and a 42' x 24' forklift platform for boat
launching.
Also proposed, is excavation of 2 areas immediately waterward
of the ramp and platform locales, 64' x 25' and 22' x 24',
respectively. Maximum depths of -4' MLW are designed for
both areas. A total of 205 cu. yds. of material will be
excavated, 120 cu. yds. waterward of MHW. This total also
includes a 40' x 25' circulation cut through an existing
spit at the western property line (to a depth of -2' MLW).
An existing dock will be removed and a new docking facility
constructed to provide eight slips. Said dock will consist
of a 68' x 4' access ramp and a 100' x 4' docking area with
a 44' x 4' terminal "T". The dock is to terminate in 4.5
ft.. (MLW) depths. In addition, eight .( 8) associated moor ing
piles are proposed on 12.5' centers. Baffleboard type
structures are to be installed along the end of the dock for
dissipation of wave energy.
Details of the proposed launching structures consist of the
following: A 50' x 25' areal surface of concrete will be
deposited for the ramp construction. The forklift platform
(35' x 24' concrete deck) will support 2 wooden finger piers
(20' long) at the waterward end.
B. The project site is located on Hog Key within the western
limits of the unincorporated City of Marathon. This Gulf-
front region is characterized by intensive development,
primarily for commercial interests (e.g., fish houses, marinas,
motels, dive shops, restaurants, etc.). A limited residential
population is present near the western border of Marathon, the
majority in mobile home parks, private clubs and condominiums.
The shoreline exhibits severe discontinuity as a result of
previous dredqe and fill activities. Numerous canals, basins
and finger fills are present. Surrounding waters of the Gulf
of Mexico are designated as Class III waters of the state.
Effective May 8, these Monroe County waters were classified as
Outstanding Florida Waters with the Florida Keys Special
Waters boundaries. The Fanny Keys are located northeast of
the project site; Boot Key is to the south and Knight Key to
the west.
Knight Key Channel is the proximal major navigational
waterway utilized for access between the Gulf of Mexico and
Hawk Channel. Said channel is crossed by the Seven Mile
Bridge.
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HOG KEY PARTNERSHIP
#441000615
Monroe County - Marathon
Page Three
A small marina basin is located to the west of the project
site and private residences are located to the east.
C. Specific site features include an irregularly shaped parcel
of land exhibiting approximately 120 l.f. of water frontage.
A small spit of land which terminates as a boulder jetty
extends approximately 130 ft. waterward to the northwest.
Said protuberance roughly runs along the western property
line. The southern portion of the jetty at the junction
with the mainland (proposed circulation cut), is vegetated
by 4-7 ft. tall red mangroves (Rhizophora mangle), black
mangroves (Avicennia germinans) and white mangroves
(Laguncularia racemosa), with. a groundcover of sea purslane
and beach carpet noted. An old pier extends in a westerly
direction from the base of the spit (on the adjoining
property) .
The remainder of the subject shoreline exhibits a relatively
gentle slope with little erosion evident. Scattered
buttonwood, Brazilian pepper and Australian pine are found
along the shoreline, as well as some boulders.
On the uplands, ~dry storage shed is currently under
construction. Crushed limerock fill had been previously
.placed out to the edge of the mangroves along the western
~roperty line. . .
From the MHW line moving waterward, wrack accumulation is
severe following extended durations of northerly winds; A
firm sand/rock substrate is noted in the shallow littoral
zone (out to MLW). Past the MLW line (sublittoral zone) ,
depths increase more sharply, ranging from 3' MHW (at the
landward edge of the proposed dredge areas) to 6' (+) MHWat
the waterward end of the proposed dock. In shallower areas,
1-3' of accumulated organic matter was noted. A relatively
barren substrate was encountered throughout the entire basin
area except for the jetty periphery and a submerged 85' long
ridge that roughly bisects the basin (parallel to the jetty).
Lush algal growth (specifically Caulerpa, Halimeda, Penicillus),
scattered coral colonies and prolific finger sponge growth
was noted along the riclye and jetty borders. Numerous fish
associated with these areas (especially prevalent at the jetty)
included french angels, parrotfish, grunts, sargeant majors,
damselfish, beau grcgorys, barracudas, gray snappers, mojarras
and pinfish. No grassbeds were found within the project area,
however, lush grassbeds are found outside of the project
limits and to the opposite side of the jetty.
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HOG KEY PARTNERSHIP
#441000615
Monroe County - Marathon
Page Four
Controlling ,depths of 4 to 5 ft. MHW were noted at the natural
contours. The customary channel is located to the northwest
of the project site.
D. Short-term impacts of significance include the elimination of
1000 sq. ft. of wetland vegetation (circulation cut site) and
the disruption of a 2128 sq. ft. area for ramp and boat launch
(forklift) facilities. Resultant temporary increases in
turbidity can be expected. Also expected are significantly
elevated levels of suspended organic materials.
Creation of the circulation cut should aid in a flow-through
surface water flushing pattern and a consequential reduction
in debris and organic matter accumulation. Such activities
should result in a net benefit to water quality.
No significant long term adverse impacts are anticipated as
a result of the project. The more productive habitats
(jetty and ridge) should remain intact throughout the project
construction. Increased boat usage will probably result in
an increase of hydrocarbon wastes, fuel products, trash and
inorganic compound discharge.
.
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HOG KEY PARTNERSHIP
#441000615
Monroe County - Marathon
Page Five
E. Under the provisions of Chapter 403, F.S. and F.A.C. Rules
17-3, 17-4, 17-12 and 17-13, the project is recommended for
permitting approval.
The following specific conditions are suggested:
1) Turbidity screens shall be properly utilized during all
construction activities affecting state waters.
2) Excavation of the circulation cut shall be performed
after other dredging portions have been completed.
3) The central submerged ridge and rock jetty (outside of
circulation cut limits) shall be preserved and remain
unaffected by construction activities.
4) No liveaboards shall be allowed at the permitted facility.
5) No fuel pumps or fuel storage shall be permitted at the
subject structures.
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ERRI KRANZE
ta IL, c _u_
, ENV. SPEC.
TAK/dvo
DATE: June 20, 1985
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ft GARY SH FFER