Resolution 306-1983 •
RE$OCUZION N L - 306 - 1983
•
IHER£A$, IRE BOARD OF count COMMI SZGON£R8 OF MONROE ming, FLORIDA, has
rereiven an applicatinn frum Webster, Richard
and,
• WHER£A,, in. uumplianue with $fate $fatufe, if is necessary as part of the
permitting pruuebure fu rears the fullnwing BinIngica1 Assessment info the Rerured,
as (allows:
The applicant wishes to enlarge his upland residential property
. and provide boat mooring facilities at the property. The first
goal will be obtained by filling the site to an elevation of
5.5 ft. mean low water (MLW) . In order to do this approximately
3200 yd3 of crushed limestone fill will be placed on 0.66± ac.
of land. Approximately 2100 yd3 of the fill will be placed on
0.23 ac. of wetlands waterward of mean high water (MHW) . The
remainder of the fill will be placed landward of MHW in 0.43 ac.
of primarily upland. The waterward. edge of the.:fill".wil1-.be
protected by 370± ft. of boulder revetment. The revetment will
be constructed as a graded bed and will also use filter cloth
to prevent the washout of fine sediments. A swale will be
graded into the fill to prevent direct runoff of stormwater
into State waters.
All necessary equipment and supplies will be brought to the.
site over upland roads. " A clamshell equipped crane and conven-
tional earth moving equipment will be "utilized to build the
project. Turbidity curtains will be used to maintain water
quality 'while the project is under construction.
The project site is located toward the western end of Lower
Matecumbe Key in the White .Marlin Beach subdivision. The
subdivision was created over 20 years ago by dredging canals •
into tidal wetlands and filling the adjacent wetland with the
spoil to create uplands. The majority of the subdivision has
been developed with private residences, however, one section
has been developed commercially.
The project site. lies at the southwestern end of. one of the •
finger fills within the White Marlin .B"each .subdivision. The
northeast side of the project site is .bordered :by two lots
and the end of Gulf View Drive. The northwesternmost of the
two lots is occupied by a two story private residence. A
sandy beach which fronts on Florida Bay lies behind this house.
• The southeasternmost of the two lots is canal front. A seawall •
and boat ramp have been built on the canal shoreline-of this
lot, but no house has been built on it.
The southeastern side of the project site borders on a man-made
canal. The southwestern side of the project site borders on
a man-made channel. An extensive mangrove forest lies on the
far sideof the channel. Florida Bay adjoins the.northwest
side of the project site. In the vicinity of the project site,
Florida Bay is designated as Class III Florida Waters (Chapter
17-3.081 and 17-3.161, Florida Administrative Code) .
The applicant's property consists of an irregularly shaped
' parcel of land which is made up of 3 adjoining residential lots. •
As mentioned earlier, the land is located on the waterward end
of a finger fill. A jetty, which protects the main access •
channel from the White Marlin Beach subdivision, projects from
the northwest.-corner of the project site. The jetty is composed
' Resolution No.
WEBSTER, RICHARD r
•Page 2
• of large limestone boulders. The uplands on the project site
consists of filled land at variable elevations up' to approxi •
-
mately 3 ft. above MEW. Substrate on the land consists of a
mixture of silt, sand, shell hash and some limestone gravel.
At the northeast side of the jetty, the project site shoreline
consists of a small section of sandy beach, which borders on
Florida Bay. Out from this section of beach;. the baybottom is
sandy and slopes down at a moderate rate. Landward of the
beach shoreline, the elevation of the applicant's property
rises up to a moderate rate, also reaching 3± ft. above MAW
•
by the middle of Lot 1.
The previously described- boulder jetty extends a shore distance
along the southwest side of the project site on the form of
a revetment. The remaining, roughly three-quarters of the
southwest side of the project site, has no shoreline armor.
The shoreline on the-unprotected section of this side. of the
project site is irregularly shaped. A roughly 3 ft. high • •
escarpment has been cut into the fill in the unprotected areas.
At the base of. the escarpment, a broad shallow shelf area is
found. The shelf area drops off more or less evenly from
approximately MHW at the landward side to 2± ft. MLW at the •
proposed alignment of the riprap. Further out the bottom
drops off rapidly to the 8 or 10 ft. depths of the access
channel. Substrate in the shelf area consists primarily of
sandy material similar to that on the lot. Near the. landward
side of the shelf a thin cover of small limestone rocks is
found on the sediment surface.
Along the southeast side of the project site, the applicant's
property has an irregular grade, which generally slopes down
toward the canal. The actual canal shoreline consists of a
narrow sandy beach... Beyond the beach, the canal floor drops
off very rapidly to a depth of 8 or 10 feet. The sediments
on the beach are once again calcorious sand.
Vegetation on the proj:ect site, in areas above MAW, is a
complicated mixture of upland and wetland plants. It appears
that much of the upland area of the. site has been- mowed
occasionally in the past. A relative sparsity of large -woody
plants gives evidence for =this. Most of the upland vegetation
consists of pioneer grasses. A few coconut trees and •
Brazilian pepper trees are exceptions to this.,,
•
The edges. of the applicant's uplands are bordered by a highly
variable width area in which the dominant -vegetation consists
of a mixture of buttonwood trees (Conocarpus ' erecta) , sea-grape
(Coccoloba uvifera) , railroad vine (Ipomoea pes-capre) , .sea
daisy (Borrichia frutescens) and bay cedar (Suriana maritima) .
On the southeastern side-of-the project site near the canal,
several small isolated depressions are found. In these de-
pressions, a vegetation composed of black mangrove trees •
-
(Avicennia germinans) , buttonwood trees, sea daisy and sea
purslane (Sesuvium portulacastrum) is found. The depressions
are surrounded by upland vegetation.
The littoral zone on the sandy beaches, which face Florida Bay
to the northwest and the canal to the southeast, are relatively
devoid of.vegetation. , Out from- the-beach-on the bay side- some
patches of turtlegrass- (Thalassia testudinum) are scattered
over the sandy bottom.
' Resolution No.
WEBSTER, RICHARD •
Page 3
On the riprapped sector of the southwest shoreline and the upper
reaches of the jetty, a flora dominated by black mangrove trees
and white mangrove trees (Laguncularia racemosa) is found. The
lower reaches of the boulders are covered by a rich mixture -of
attached macroalgae. •
•
On the face and at the.base of the escarpment which is found
along the southeastern three quarters .of the southwest side of
the project site, stands;:'of mixed red mangrove (Rhizophora mangle) ,
black mangrove and white mangrove are found. The densest stand
is found at the northwest end of this ,area: At several points,
the mangroves extend 10 to 20 ft. beyond the base of the escarpment. •
On the shallow shelf area along the southwest side of the
project site, the first 20± ft. of the shelf out from the toe
of the escarpment, .with the exception of the mangrove. covered
area described above, is relatively lacking in macro vegetation.
The primary component of the flora that does exist is 'Bataphora
sp. which is found attached to the gravel that covers much of
the bottom in this area. Further out in slightly deeper water,
a narrow 10 to 20 ft. wide zone dominated-by Cuban shoalweed
(Halodule wrightii) is found. Some Penicillus sp. and Halimeda
sp. is also found in this area. Further out turtlegrass replaces
the Cuban shoalweed. The turtlegrass extends down the slope to
the channel floor.
The fauna. on the project site is varied in response to the _.
variety of habitats. Tessellate nerite snails (Nerita
tessellata) and fuzzy chiton (Acanthopleura- gtanulata) are found •
on the intertidal area of the boulders. Subtidally, snappers
(Lutjanus sp.) cow fish. (Acanthostracion quadricornis) , .blue -
crabs ' (Callinectes sapidas), anemonies, star coral (Siderastrea
radians) and:lobster. (Panulirus argus) are found.
Construction related activities can_be expected to cause
temporarily elevated levels of dissolved organic compounds,
particulate organic compounds and turbidity in the waters at and
near the project site. Proper usaof silt screens, as proposed,
should be able to control these impacts adequately to maintain
water quality within acceptable standards.
The proposed filling activities will result in the loss of 0.3±
ac: of wetlands, 0.23 ac. of which lies waterward of the MHW
contour line. With the loss of the wetlands. will be the loss
of their functions of pollution filtration, habitat, primary
production and fishery production. In the case of the project
site, these functions are well represented. The proposed rip-
' rap will serve to partly replace some Of the loss functions,
particularly habitat. ' . .
BE It RB$OCVED BB THE BOARD OF m ing COMMI ZGON£R$ OF IMONROE mum, FDORIDA,
that the above Biological Assessment has been reafi into the rencra ann eiu18 ronsia reu
pursuant to. Floriba $tatut2 253.124 bg the Boarb of Cnuntg Commissioners of Monroe
•
Counti.,,Florida, this 0-th hag of 1\)0 tj a \--)6C. , 19 - at a regularig
schoauleh ,meeting.: • ,
BOARD OF mum l CU1iMI$$ZONR$ OF
M(ONROE ming, FCORIDA •
( L) nu . 1
• (magnr)
•
Attest: DANNY L. KOLHAGE, Clerk
•
urien C. Probg, y
Countg Attorn2,
' .aa
•
BOARD OF COUNTY COMMISSIONERS
•
OUNTY •
o NONROE �'�
�+- �_ ' •4G,�„ Wilhelmina Harvey, District 1 Ed Swift, District 2
: KEY WEST, FLORIDA 33040
(305) 294-4641 � MAYOR Jerry Hernandez, District 3
••:x ;u.;; ;. t Alison Fahrer, District 4
� Mayor Pro tern Ken Sorensen, District 5
\...
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 :
•
L. County Biologist Report
2 . Resolution (Richard Webster) ✓
3 . Permit
4 . Application for Permit (Rip-rap & Fill) IV
5 . Site Plan
6 . Location Map
•
7. DER Assessment ✓
Date L 6 Q(SOP D 3 By ° :k
OCT 22 190•
DEPARTMENTAL CORRESPONDENCE
DATE October 25 , 1983
SUBJECT : R. Webster : Proposed Rip-rap and Fill
TO: Jeff Doyle, Director DEPT: Building, Planning & Zoning
j -:
FROM: Annette F. Nielsen j�'L��< <
/ ' / DEPT: Planning & Zoning
Environmental Biologist--
Legal Description:
Lots 37 and 38, Block C and Lot 1, Block D, White Marlin Beach Subdivision,
Lower Matecumbe Key.
Zoning: RU-1
Introduction: Q
The application, which proposes to place rip-rap and deposit fill below (MHW)
line should be reviewed by the Board of County Commissioners, pursuant to
Section 19-111 (5) , M.C.C.
Project and Site Description:
The applicant proposes to construct 370 linear feet of boulder rip-rap on
or near the platted property line of the referenced property and place 2100
c.y. of fill waterward of MHW and 1100 cy. of fill landward of MHW. Appli-
cant also proposes to construct a "T" type dock on Lot 1 and Lot 38 . Pur-
pose of the proposed work is to reclaim lost land, rendering the lots build-
able and to prevent further erosion. Docks are to provide water access
on lots 1 and 38 . A site visit was conducted August 24 .
Lot 1 presently has a rip-rap revetment along the Bay shoreline to near the
center of the west property line. The rip-rap is colonized with primarily
mangroves and buttonwood. The remaining shoreline has been eroded and ex-
hibits scattered clumps of mangroves at the base of a 2-3 foot embankment.
The shoreline of Lot 38 exhibits a similarly eroded escarpment with only a
few scattered mangroves. The canal shoreline of lot 37 and 38 slopes down-
ward abruptly to -10 foot depths of the dredged canal and exhibits minimal
vegetation.
The submerged shelf area to the west of lots 1 and 38 extends to near the
platted property line and slopes gradually to the dredged channel off
shore. Bottom vegetation on the shelf is sparse from MHW to approximately
25± feet waterward. Further out there are marine grass beds composed of
turtle grass and Cuban shoalweed.
The upland portion of this property has not been developed. Vegetation
noted consists of grasses , seagrape railroad vine, sea oxeye daisy, planted
coconut palm and a moderate invasion of Brazilian pepper, an undesirable
exotic.
The attached FDER biological appraisal addresses the proposed project in
greater detail.
R. Webster: Proposed Rip-rap and Fill
Page 2
Evaluation:
The proposed rip-rap and fill would eliminate approximately . 23 acre of sub-
merged wetlands, a portion of which is only marginally productive. A
smaller, but much more productive benthic zone would also be eliminated in
the area of the marine grass beds and the shoreline mangroves .
These areas are afforded protection pursuant to Section 4-16 and Section
19-lll (5) ,M.C.C. as well as in provisions of the Coastal Zone Protection
and Conservation Element of the Comprehensive Plan (pg. 25 (3) ) .
Loss of the mangroves may be mitigated with recolonization of the proposed
rip-rap. This possibility is substantiated by the presence of mangroves
on the existing rip-rap.
However, the elimination of the marine grass beds and their contributions
to the environmental and socio-economic well being of the community would be
a permanent loss .
The preservation of the marine grass beds may be accomplished by limiting
the line of the proposed rip-rap and fill to a definitive line, landward
of the marine grass beds on lot 1 and lot 38.
Recommendation:
Conditional approval.
--Rip-rap and fill to be placed
landward of marine grass beds.
--Turbidity curtains to be used throughout . construction.
Note: A.C.O.E.and F.D.E.R. permits. may be required.
Attachments:
County application & site plans .(5 sheets)
FDER biological assessment (6. sheets)
•
w-
¢o � GPLANNING, BUILDING &ZONING DEPARTMENT$ �a��.'.�^� PERMIT
MONROE 4 PERMIT FOR EXCAVATION, THE DEPOSIT OF NO.
COUNTY ).J " FILL, OR STRUCTURAL ACTIVITIES IN THE
WATERS OR WETLANDS OF MONROE COUNTY
1)Property owners name&mailing address 2)Date FOR DEPARTMENT USE ONLY
Richard Webster 7-25-83
16 Prescott Street Resolution No.
Brookline, MA 02146 3)Phone number
(617) Date:
566-3364
4)Contractor or agent's name,mailing address&phone number
Glen Boe, V.P.
Design Management Associates , Inc.
Post Office Box 3406
Marathon Shores , Florida 33052 743-9121
5)Legal description of property:
Section One
Section 20 . Key Lower Matecumbe Subdivision White Marlin Beach
Township 64S Lot 1-37.38 Block D/C
Range 36E Street, road or mile marker West end of Gulf View Drive
Volume of material: dredged/excavated filled/deposited
0 c.y. 0 c,y, 2100 c.y. 1100 c.y.
waterward landward waterward landward
of M.H.W. of M.H.W. of M.H.W. of M.H.W.
ZONING: RU-1
•
•
PURPOSE:
Cost of Permit Estimated cost of Construction
Biologist Comments-Restrictions or Special Conditions if any:
Conditional Approval :
Rip-rap and fill to be placed .
Landward of marine grass beds •
Turbidity curtains to be used throughout construction.
A.C.O.E. and F.D.E.R. permits may be required.
Jeffrey M. Doyle , Ph.D. , Dir .
Planning, Building and Zoning
�\' C'.nC?•ti 11:L:`.'e i! mail :I;!, :I(,.( ..-c-,S • .
Richard Webster ;
16 Prescott St . July 25 , 1983 ' ( 617 ) 566-3364
Brookline , MA 02146 -----__— --' - --- - - - - — _
'actor or agent's name, mailing address , phone '; cc1'T -.-caz2.:;i`. P.t... r.
Glen Boe , V . P . Phone ( 305) 743-9121
Design Management Associates , Inc . Florida P . E . No . 17300
P . 0 . Box 3406 , Marathon Shores , FL 33052
1 description of property: Section One
ion, 20 Key, Lower Matecumbe rtihdivisica, White Marlin Beach
;hip, 64S D/C
36E Lot, 1/37 ,38 Block,
(if acreage) .
Street, road or ;;, we maser, West end of Gulf View
ng, ..B-CJ- 1l��r� ,y�,. _- Drive
cribe the proposed activity, methods of construction F amount of material (in cubic yards) ,
- be excavated or discharged. Pescribe purpose 6 intended use of project. .
See attached Remarks
. dredged/excavated ' ' :f i1.led/d.ep.osited
. of 0 c.y. 0 c.y. • 2100 c.y. . . . 11Q0 c.y. '
al waterward landward. waterward l,r,card
. . . of 1' .T-?.1'.. of ?'.:.T.W or V.U.1'•. of `".T-+. ;.
!e, address FI zip code of adjoining property owners ose property affronts water w.v.
( 1 ) Florence Boss ( 2 ) Raymond A . Ross
61.1 Seville P . 0 . Box 523605
Coral Gables , FL 33134 Miami , FL 33148
.ist other permits issued and/or applied for , include applicant's name, for this site:
•
No other permits processed or issued.
:f application has been submitted for this project (or one similar) in the past,
:xplain reason for new application and give applicant's name if different from current
ipp lic ant. .
Earlier permit application for Lot 1 , Block D was submitted by
Manual L . Diaz , a prospective buyer , but application was withdrawn .
• .
;t all Federal-and State agencies that nave received applications zor this project.
U . S . Army Corps of Engineers
Florida Department of Environmental Regulation
This completed application form will no accompanied by the
I following, or it will NCT be processed.
/ o (2) sets of drawings, on S1 x 11 paper, showing location, plot plan, top view and '
oss section of proposal, drawn to scale.
plication processing fee as follows : •
5.00 for dredge, fill, decks CF. any structures affronting natural water bodies.
,O.00 for vertical seawalls on man-made bodies of water.
5.00 for any combination of the above activities per site.
cation is hereby made for a permit to authorize the activities described herein. I
fy that I am familiar with the information contained in this application, and to the best
knowledge & belief such information is true, complete F., accurate. I further certify that
sess the authority to undertake the proposed activities. till, provisions of laws and
ances governing this type bf work will be complied with whether specified herein or not.
ing of a permit does not presume to give authority to' violate or cancel the provisions of
ounty, state or federal law regulating construction or performance of construction of this
of facility. ,. ,,
JO::
'i' o dic' nt/an
cpartment Use CnLv /
Foe t, rcc^Apt F !\p proved by J'ss 't. Director
; 'ni!1_c -- &
111111
•
•
•
Richard Webster
Revetment , . Fill & Docks
•
•
Remarks
The lots for which this project is proposed were originally
filled out to the platted property line . Storms , wave action
and wakes by passing motorboats (as observed many times by
the applicant ' s consultants ) in the intervening years have
eroded the shoreline to its present location . The purpose
of the project is to reclaim the upland lost to erosion to
the extent necessary to render the lots buildable by present
county standards . ( Building driplines must be set back 20
ft from surface waters and 10 percent of the lot width from
side lot lines . Septic tank/drainfield systems must be set
back 50 ft from surface waters and 5 ft from lot lines and
building drip lines . ) The proposed filling represents the
minimum amount practicable to meet these requirements for the
lots involved . The project consists of constructing approx-
imately 370 ft of riprap revetment , filling approximately
0 . 234 acres of eroded land and restoring the elevation of
the lots to their original +4 . 5 NGVD . A perimeter swale will
be constructed to prevent direct runoff of stormwaters . Wood
tee docks are to be constructed on Lots 1 and 38 to provide
boating access . All materials and equipment are to be brought -
to the site via existing upland roads . Construction will be
by clam bucket and other conventional earth moving equipment .
Turbidity screens will be deployed as necessary to meet state
water quality criteria . Filter cloth will be installed on
the landward side of the revetment to prevent fines from mi -
grating into adjacent waters . Total area involved in the fill -
ing activity is : . 663 acres 1:0 . 234 submerged , 0 . 429 upland) .
` pR
ADJACENT PROPERTY OWNER3
( l \ FL0RENCE BOSS
| hIl 3EVILLE
CORAL GABLES , FL 33- 34 �
( 2 ) RAYMOND A . RO3S , JR .
P . O . BOX 52J505 / °°�-=^� ' '
MIAMI , FL -33I48 '� 3 z � - �~^E" , �
.`'. ^Ui',1BE ;"� ,-�-
MOAA CHPrT NO . 11449 SCALE : I � '10 , 000
LAT 24` 6I / 37"N , L�NG 80"44 ' l0 "H
�
PLATTED
_ ~ CHANNEL FLOODPROPERTY
MANGROVES
\ MAN6HUy ` 3
/r--L
cD
^~ 38_, _BLK C LUT l , BLK D `^RIP RAP
^
� ^ BLK C
�
! �� � ^
rEXISTINGHOU3E
y m
,.�" � oc '
c�
LOT `2 " BLK D
EXIST . WALL
� EXIST . RAMP � ^
KICHAKD NEBSTER SCALE : Tx=50 / '
' REVETMENT , FILL & DUCK
25 0 50 l
LOCATION , PROPERTY OWNERSHIP, ' Architects---Engineers-�- '-- - -- ---
Planners
PLAN �F EXISTING CONDITIONS SHEET I Of 3 P.O.,o� nvu»ma'm,ummn��vm,' Florida ooz 34o6
DOCK PLAN VIEWS 4.1 8 ' 10 ' TO P . L .
• t i -4----- /
35 '
le__
10 0 20 40 —�
t' '
• !., ------r.7 _-. ..-.-�. 1-•----.1 / %I I 1 j ' co 1
SCALE : 1 "=20 ' -;� ill ii .1il ko
---1
'I I 144 ' TO P . L . 10111
_
€ —I
-0 -71/4- 1 v
-71,, i -__.
,;4 ' 6 '
N j ��'' �,I IIJ �— MANGROVES & RIPRAP
,,.,e .. .�_. . ,, ,.., -= - +, c'o`� 0 4 T O R E MA I N .
:_._
cc-i-:::5;:;- ');;;.(>2. ,k cA" 4,Aw ..• -1- - ----T:r--------c":--a,--..r?--T> c.) ,z, .\\/
0$\ �`�/ d
/ C7
,fir 17 � .. J .. /4'
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7" t I
t / 18 8 '
4,
M t
`iii
; FILL LANDWARD OF MHWL
121 ' r.,. 1-1-7
A,,, FILL WATERWARD OF MHWL
RICHARD WEBSTER
7-34
11OCK
S,�.� ,>
r- n e
PLAN OF NE J WORK Architects 0 Engineers 0 Planners
SHEET 2 OF 3 P.O.Box 3406-Marathon Shores,Florida 33052-3406
JNK_-_'
' . ---------' -T- \
DOCK PROFILE +5 _ 5 |
/ LOT l ^^
�
+l ' O MHW
O ' O MLW
. ~. �
-4 . U
/ ' I2 8 /
75 TO P . L . -- -~^��-
-�-----' ' �
/
|
DOCK PROFILE 12 ' '
LOT 38 +5 ' 5 '
+l ' 0 MdK
O . O MLW
128 ' TO P . L . 2 ' -3 ' 0
. � 4 .
| |
SECTION A-A PERIMETER 5WALE ` __ +5 . 5vzzzzq ,
+l . O MHW
-- O ' O MLW
--W
-25
' �
130 / TO P . L . ^� 45 ' .
� 1
| > '
' TOP OF RIPRAF +5 ' 5
SECTION- 8- D F _ 'H GRADE f5 U
+5 . 5
'
I ' 0 MHW
U ' O MLW
. 3 ' 6
� / TO P . L 47
'8 ' -n�� -
) `
^ �
�
/
'
SECTIUN C- C
' - +o ' 5
+l O �H� /
' /
U ' P
!
128 ' Te P . L .
/
� -RICHARD �ED'zTER SC AL[
REVETMEN'T ` LL & DOCKS �
` 5
� rs
SECTIONS � SHEET 3 OF 3 �'u`»"o" o =^'~=-- --~`'~�
| po. Box 34o6 Marathon S/.ovsn"nu^ �n�z ' `
. � . '
-
a r tiF
V^Ia I '
DEP l '�?"1EN OF u1'V I• O,7MEN j'A L, REG JLAT. (1 .
- x=ERN'11'1' APPLICATION PPRTS?\1, ... : . . ' , .. .
s .,. : No ti s073 85` ' Co:.inty Monroe Date +--2'J-si 3
:'p I.t:ant.' Name: Richard Webster-':LI
•:t-'.C._':es's : 16 Prescott St . , Brookline; MA 02146
r •ent ;(if applicable) G7.c.n Boe
_.„.., irE: PO Box 3406 , Marathon Shores , FL 33052
..:ocatiOn of project : Section (s) ----20---- Township 64S __. Range 36E--
Section ( ) �..., �._�.. Township -__ _— Range
______
;,'" ,.a l Betel ence Lower r Ma.'C:.ti:z :UUbe x
r:�1::":i., Body t .ZoZ .i.t.:a Bay 1 .
• :r at... _ `Classification of Project Area c"III Adjacent Waters :s : I.II
iqua t1S: Preserve: Non;
;..Out standing Florida Waters : Nonce
P`I site inspection by : awid Bishof
inal
i, i'C E' of I ,'. r)E_'�:tlo:I .____.:� '_._-83_Z. _. v7 '�C Application : `�'�5 1 �"O
Revised Application : Yes__.. No_...._ Date : _ Date Date ?f 2nd Insp. -_______....
B1.(.;?iol.icc. l and Water Quality Assessment
• A. Description of promos i project ;and construction techninues .
Quantify area of project which extends into waters of the state
(including the submerged lands of those waters and the trc;nsi-
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 16-10 (Rev. 6/79)
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. , ilSTER, RICHARD, ,
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416107314.855 . - ii,' ! . , •
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Monroe County 7 4OWer Matecumbe Oy , .
• Page Two
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A.', The applicant wishes to enlarge his upland residential property
and provide- boat mooring facilities at the property. The first
goal Will be obtained by 'fillingthe site to ap elevation of
5 .5- ft. mean tow water (MLW) 1. .In'order to do this al)proximately
3200 yd3 of crushed limestone fill will be placed on 0 . 66+ ac
.:. of land. Approximately 2100: yd3 of the fill will be placed in
. • . i 0 ,23 ac of wetlands waterward of mean high water (MHW) . The
remainder of the fill willjpe placed landward. of MHW in 0 . 43 ac
' of primarily upland. The Waterward edge of the fill will be
. . ' protected by 370+ ft . of bOUlder revetment. The revetment will
' - be constructed as a graded bed. and will, also use filter cloth
• ' to . prevent the washout -of f.ihe sediments . A swale will be
graded. into the fill to prevent direct runoff of stormwater
into State waters . ' . . i .. .
.
Boat mooting facilities will:- be provided by the construction
• , . of - two "T" shaped docks . On dock, which will. be built on the
southwestern side of the project site , will have a base section
e , measuring 6 ft, by 16 ft. and an end section measuring 35 ft .
'by 8 ft. (376 ft2 over the water area) . The second dock, which
. .- will be built. on the southeast side of the project site, will
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. .. also -be ."T" shaped with a 4 ft . by 8 ft . base section and a
• . ' 4 ft. by 20 ft . end section (112 ft2 over the water areal .
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Both docks will be -pile supported and built out of wood.
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All necessary equipment and supplies will be brought to the
. site overupian, toadso A clamshell equipped !crane and conven-
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' tional earth moving equipment. will be utilized to build the
. project. Turbidity. curtains. will be used to maintain water
. .: ' quality while the project -is under construction .
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B. - The project site t located toward the western end of Lower -
., . . Matecumbe Key in the White Marlin Beach subdivision . , The
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subdivision was created. over 20 years ago by dredging canals
into tidal wetlands and filling the adjacent wetland with the
• spoil to create uplands . The -majority of the subdivision has
• •. been developed with private -residences, however, oresection
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. has been developed commercially. .
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• • The project site lies- at the southwestern end of one of the
finger fills within the White Marlin Beach subdivision. The
. , northeast side -of the project site is bordered by two lots
and the end. of Gulf- View Drive. The northwesternmost of the
. . . two lots is occupied by a two story private residence . A
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'► BS7.'.'r.'�R, RICHARD
• 4440731855
:=
Ta:.
Monroe County - Lower Matecumbe Key
Page Three
sandy beach which fronts on Florida Bay lies beh.i.nd this house .
The southeasternmost of the two lots is canal front . A seawall
and boat ramp have been built on the canal shoreline of this
lot, but no house has been built on it .
The southeastern s:Lde of the project site borders on a man-made
canal . The southwestern side of the project site borders on
a man-made channel . An extensive mangrove forest lies,�
on the
fctr. :,ids of the channel . Florida Bay adjoins the northwest
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side of the project site. In the vicinity ot: the project site,
F'.lor:.ida Bay is designated asj Class III Florida Waters (Chapter
17-3 . 081 and 17-3 . 161, Florida Administrative Code) .
C. The applicant ' s property consists of an irregularly shaped
parcel of land which is made up of 3 adjoining residential lots .
As mentioned earlier, the land is located on the war.erward end
of a finger fill . A jetty , :which protects the main access
channel from t.:he White Marlin Beach subdivision, projects from
the northwest corner of the project site . The jetty is composed
of large limestone boulders . The uplands on the project site
consists of filled land at variable elevations up to approxi-
mately 3 ft. above MHW. Substrate on the land consists of a
l } 1 some ,s e1
mixture of silt, sand, shell L hash and .1-1II1E+.�t:C.%liE'. gravel.
•
At the northeast side of the jetty, the project site shoreline
consists of a small section of sandy beach, which borders on
• Florida Bay. Oot from this section of beach , the baybot. tom is
sandy and slopes down at a moderate rate . Landward of the
• beach shoreline , the elevation of the applicant ' s property
rises up at a moderate rate , also reaching] 3t ft . above MHW
o by the middle .of ! ')t 1 .
' The previously described boulder jetty extends a short distance
along the southwest side of sthe project site in the form of
a revetment. The remaining,' roughly three-quarters of the
• southwest side of the project site, has no shoreline armor.
• • The shoreline on the unprotected section of this side of the
project site is irregularly •shaped. A roughly 3 ft. high
escarpment has been cut into the fill in the unprotected areas .
At the base of the escarpment, a broad shallow shelf area is
found. The shelf area drops off more or less 'evenly from
• approximately MHW at the landward side to 2+ ft. MLW at the
proposed alignment of the riprap. Further out the bottom
drops off rapidly to the 8 or 10 ft. depths of the access
channel . Substrate in the shelf area consists primarily of
•f TR" •
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WEBSTER, RICH.b.RD
4440731-855 •
Monroe County - Lower Matecumbe iKey
Page Four
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sandy material similar to that on the lot. Near the landward
side of the shelf a thin cover of small limestone ial;:ks is
found on the sediment surfade .
•
Along the southeast side of the project site , the appLicant ' s
. property has an irregular grade, which generaLly slepes down
• toward the. canal . The actual canal shoreline consists of a
narrow sandy beach. Beyond -the beach, the canal floor drops
off very rapidly to a depth of 8 or 10 feet . The sediments
on the. beach are once again dalcorious sand• .
Vegetation en the project site, in, areas abo'H OMW, is a
• Complicated mixture of upland and wetland Hants . appears
that much ot the upland area of: the site has been mowed
occasionally in the past . A relative sparsity of large woody
plants gives evidence for this-. Most of the upland vegetation
• consists of pioneer 'grasses'. A few coconut trees and
Brazilian pepper trees are exceptions -to this .
•
The edges of the applicants ,UPlands are bordered by a highly
• Variable width arca in which the 'dominant vegetatIon consists
-of a mixture of buttonwood trees (Conocarpus erecta) , - sea grape
• (Coccoloba uvifera) , railroad vine (Ipomoea pesTcaprae) , sea
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daisy (Borrichia frutescens) and bay cedar ( uriana maritima) .
•
On the southeastern side of the . project site near the canal ,
several small isolated: depressions are found . In these do-
• pressions , a vegetation composed gf black manarove trees
(AVicennia germinans) , button wood trees , sea daisy and sea
• : purslane (Sesuvium portulacastrum) , is found. The depressions
• are surrounded by -pland vegetation.
•
The littoral zone on the. sandy_ beaches , which face Florida Bay
to the northwest and the canal to the southeast, are relativeLy
devoid of vegetation. Out from the beach on the bay side some
patches of turtlegrass (Thalassia testudinum) are scattered
• • over the sandy bottom.
: On the riprAed sector of the southwest shoreline and the upper
• reaches of the jetty, a flora dominated by bi uck mangrove trees
and 'white mangrove trees (Laguncularia racemosa) is found .
The lower reaches of .the boulders are covered by a rich mixture
- - of -attached macroalgae .
On the faCc and. at the base of the escarpment which is found
. along the southeastern _three quarters of the southwest side of
- the project site ,' stands of mixed red mangrove (Rhizophora mangle) ,
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ifie•'::. .,,W43STER, RICHARD4
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#440731855 . I
Moproe County - 40 a Wer Mtecumbe 1<ey 1 .
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Page Five •'.!:.;1; . .
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black mangrove and white mangrove are found. . The densest stand
. is found at the northwest: end of this area. At several points,
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the mangroves extend 10 to 20 ft. beyond the -base of the
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e ' • escarpment . . .. .
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i On the she shelf area: alOng. the southwest side of the
!... project site, the first 20+ ft. of the shelf out from the toe
' of the escarpment, with the exception of the mangrove covered
area described above , is telatively lacking in macro vegetation.
The primary component of the flora that does exist is Bataphpra
sp. which is found attached to the gravel that covers much of
the bottom in this area. Further out in slightly deeper water ,
a narrow JO tc 20 . ft , wide 'zone dominated by Cuban shoalweed
(rialodule wriahtii) is found'. . Sbme 'Penicillus sp. and Halimeda
• sp. is also found in this. area. - Further out turtlegrass re-
placed the Cuban shoalweed. The turtlegrass extends down the
slope to the channel floor.
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'The fauna on the project site is varied in response to the
:1-
. variety of .habitets . Tessellate nerite snails (Nerita
•
tessellate) and fuzzy, chitone (Acanthopleura granulate) are found
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• . on the intertidal area of the boulders . Subtidally, snappers
(Lutjanus sp. ) , cow. fish (Acenthostracion auadricornis) , blue
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. I crabs (Callinectes sapidas) , : anemonies, star coral (Siderastrea
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radians) and. lobster (panul_irus argus) are found. -
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D. Construction re? ated activities can be expected to cause
temporarily elevated levels of dissolved organic compounds ,
. . particulate organic compound's and turbidity in' the waters at and
• near the project site . Proper use of silt screens , as proposed ,
•
should be able to control these impacts adequately to maintain
. . :, water quality wits n acceptable- standards .
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The proposed filling activities will result ini the loss of 0 . 3+
acof .wetlands, 0 . 23 ac of which lies waterwar4 of the .MHW
. -: contour line . -With the loss of the wetlands will be the loss
. . .1 of their functions of pollution filtration, habitat, primary
. -. .1 production and fishery production. In the case of the project
•
. :• site, these functions are well represented. The proposed rip-
rap will serve to partly replace some of the loss functions,
particularly habitat . '
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Shading from the proposed docks and the boats which are likely
to be moored to them, will 'cause a shift to more shade tolerant
vegetationAinder them. The. smal] Size of the 'docks will tend
to minimize this effect. :
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WE STL12, RICT1 :RD zt
#44073l855
Monroe County - Loer Nat. ?cumbe :Cey
Page Six j
The relatively narrow aspect ;of the channel and canal into
which the crocks will extend, may cause some p _: b Lems with
navigation around the docks . ' : It does not appear this problem
will be very severe .
Use of the docks for mooring boats will tend to result in the
discharge of heavy metals, oils, greases, detergents and
miscellaneous debris . It isnot anticipated that this impact
will be very severe .