Resolution 190-1976RES.OLUT.ION #.190, 1976
WHEREAS, the..State of Florida Department of Transportation
proposes to. construct a bridge and approaches at Saddlebunch
No. 5 Bridge.
(S.R. 5) Monroe County, Florida, De-
partment.of Transportation Project No. 90.0.20-3519
. and
WHEREAS, it is.necessary for the..Board of County Commissioners
of Monroe County, Florida, to.approve said project, and
WHEREAS, the .Department .of Transportation has provided the.
Board with sketches describing the proposed construction, and
WHEREAS, the..State of Florida Department of Transportation
has filed an application for a dredge -fill permit from the. .State..
of Florida Department of Environmental Regulation, and
WHEREAS, a biological survey study has been made by the.
Department .of Environmental Regulation, and a copy of said report
has been read into the. records and duly considered at a public
meeting of the Board, and
WHEREAS, the. Board of County Commissioners, Monroe County.,
Florida, has determined that .the..issuance of a dredge -fill permit
will not be .contrary to. thepublic interest,
NOW THEREFORE,.BE IT RESOLVED, by the. Board of County
Commissioners, Monroe County., Florida, that the Board endorses
the..State of Florida Department of Transportation proposal to
construct a bridge and approaches. at.Saddlebunch No. 5 Bridge
(S..R. 5), Department.of Transportation Project No. 90.0.20-3519
r
-2-
as shown in the attached sketches:, and has entered the biological
surveyas shown in.the..attached report into. therecords of a public
meeting, .and
BE IT FURTHER RESOLVED., that certified copies. of this Re-
solution be..forwarded to. the .State .of Florida Department of
Transportation and State. of Florida Department of Environmental
Regulation.
ADOPTED by the..Board of County. Commissions of Monroe County.,
Florida, this 26 day of October 1976
_EIVED.
cop .,,. SEA' gD1916
Envfron. pev.
September 28, 1976
Board of County Commissioners ,
Monroe County
Monroe County Courthouse
Key West, Florida 33040
Gentlemen'.
File No. 44-37-3766, Monroe County -
Department of Transportation (SacZdl - bunch if 5 )
Our staff has performed a biological survey for this proposal and
offers the following con=eats:
The applicant proposes`to construct an 878-foot long by
-47--foot wide bridge across Saddlebunch Channel, No. .5.
The existing bridge is to be left in place. Two con
struction alternatives, have been proposed as follows:
Alternative A involves dredging 14,500 cubic yards of material
.from an area 100 feet wade along the north side of the pro
posed bridge to provide the crorlc bate access. Alternative
B involves temporarily filling with 18,600 cubic yards of
material along the north side of the bridge in an area
varying in width from 75 to 105 feet. The temporary.fill
material will be reii.oved and the bottom restored to the
original contour. Temporary fill material will be utilized
upland in the proposed embanI ientb
The Ivey West and Miami approaches will he widened and
lengthened and a shoulder be created along the north
side of each approach. The shoulder construction will
involve the placement of��31,528 cubic yards of material in .
the submerged and transition zones.
The general area around the project site is undeveloped
except for marginal disturbance to adjacent transition zones
and upland areas. Uplands are vegetated by red, black and
..white mangroves and bu'i buttonwood.
Subre:�gent vegetation
consists of marine algae and marine grasses.
i
Board of County Commissioners
September 28, 1976
Page Two
The approaches at the specific worksite are vegetated by
red, black and white mangroves and buttonwood. undisturbed
submerged bottoms have a solid limestone substrate overlaid
with a thin layer of marl. The submerged area adjacent to
the bridge was previously dredged and has now'silted in with
unconsolidated debris and find and medium fine marl. The
original depth of the dredge area varz6<<ifrorn 2' to 5 feet
below the bottom substrata.
Submerged vegetation at the project site is low in diversity
but lush in growth. Turtle grass is the dominant vegetation
in the disturbed area. other vegetation inc]_udes Cuban
shoalweed and a number of species of green algae. A variety
_of marine life was observed around the bridge as well as in
the grass flats. The following were observed: Sponges,
tunicates, coral and other coelentrates, gastropods, spiny
lobster, rays, grunt, snapper, parrotfish, shrimp, crabs,
c�ds and nulner_ous other invertebrates.
polychaetes, Cmphip
Located to the immediate south of the existing bridge is a
fill which extends 40 feet from the bridge supports. The
fill and associated..rubble restrict circulation over most
or the channel width except for an area approximately 300
feet in length adjacent to the Key West end,
The immediate impact of the bridge installation -on the sub-
merged and transition zones will be the elimination of the
vegetation and the destruction of the associated habitats.
Construction alternative A, which involves dredging, will
.,create a bottom discontinuity. It is anticipated that this
area will entrap organic matter and the resulting decom-
position which will reduce dissolved oNygen will adversely
affect water quality. In addition, under surge conditions.
the unconsolidated material may be resuspended. The
dredging will also resusp end all the flocculent material
which has settled out and been stabilized by the vegetation
cover since the original dredging occurred..
Although not addressed in the application, excavation of a.
trench in areas where limerock substrate is exposed may
involve blasting. ''he; environmental im act of blasting would
significantly expand the area of habitat destruction beyond
the immediate project vicinity. There are no provisions in
the application for restoration after the bridges completed.
.4
Board of County Commissioners
September 28, 1976
Page Three
Construction alternative B, which involves filling, will
eliminate the same vegetated area as the dredging and
:result in similar problems. An unstable substrate will be
created that will be subject to resuspension. The actual
fill, even though temporary, will be subject to erosion
..and wash out.
A major area of concern is the filling along the north side
of State Road No. 1 from west of Saddlebunch #5 to east of
Sugarloaf Channel. The placement of over 300,000 cubic
yards.of fill will eliminate transition and submerged vege-
tation over a 3.3 mile length. The source of such large
amounts of fill., which has yet to be determined, may create
future environmental problems.
The Lower. Sugarloaf and 2addlebunch Keys areas should be
considered environmentally significant. as an essential link.
in the marine food chain. This highly sensitvve mangrove
ecosystem, characterized by relatively shallow tidal waters,
is 'utilized extensively as.nursery and feeding grounds for
juvenile fish and wildlife. The tidal flovz at the subject
bridged interfaces al_loPvs. an essential exchange of nutrients
and migratory larva. Elevated volumes of.flow at these
Bay/Straits i.nterfaces..��ere produced by the original roadway
construction diverting the diurnal flooding and draining of
vast areas. Alterations to the tidal flow of such a shallow
area.would not only affect nutrient exchange and migratory
fauna patterns, but could expose.vast areas of habitat not
adapted to -such stress®
Examples of the integrity of the bridge construction and
maintenance methods utilized in the past are evidenced by
the ranczo-a deposit of structural concrete members and rubble
into 4-he waters directly below. The subject applications
involve extensive alterations to a vast, significant and
sensitive ecosystem. Pre -application planning meetings
stressed the idea of coordinating the fill requirements
(approximately 30-60,000 cubic yards per bridge) in this area
of minimal uplands with community reeds (i.e. potential
marina sites), so as to incur_ the maximum future use of
these necessarily large borrow sites. Since proposed con--
struction techniques will eliminate a large -area of valuable
transition zone and submerged land habitat, it is recomimended-
that the project be modified to eliminate the proposed shift
northward of U.S. 1�1 which extends into the transition zone
and submerged land areas. It is also recommended that con
struction alternative BZ be considered as it would Further,
reduce the environmental damage to the area..
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PROJECT`L'OCATION,,S�-
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�,. SECTION ``13
a ;"!` x✓ �, SA _ ,. T 67 S,, R6,Y►��o�t
f s 5 hac
VICINITY MAP
FROM MONROE COUNTY HIGHWAY MAP
PROJECT NO. 90020-3519
PROPOSED FILL AND DREDGE FOR SADDLEBUNCH NO. 5 BRIDGE S.R. 5 MONROE COUNTY
FLORIDA DEPARTMENT OF TRANSPORTATION
ALTERNATE D-1
1976 c,[_,f-ET i nr In
SHEET N0. 2 OF 19
0 50 100 95 Linear Ft. of Riprap
0 100 Linear Ft of Riprap
o e
Scale (Ft.) Proposed Bridge��
LO
o Existing Bridge to remain 3 IF-�
►E t
-�r---------------- _------------------- _-----------
T—Key West
�►t--Existing Wall To Remain Existing Wall Tom-'—
Existing Grade E PLAN � Remain
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20—
/---,
- -- ID_
-20-
0 50 100�
Scale (Ft.)
0510
or0
See Sheet 18
For Dredge Details
M.H.W.+
Dredge Area Elev.- 5
ELEVATION .
Aj
Water Reference Datum N.O.A.A.
Minimum Vertical Clearance M. H.W. =9.00'
Minimum Vertical Clearance M. L.W. =9.801
Existing Vertical Clearance = 5.5 ±
Minimum Horizontal Clearance=78.00��
Existing Horizontal Clearance = 15.0 -+
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See Sheet 19
For Temp. Fill Detail
36It0 t Hole for
Pile Driving
a�
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FOUNDATION
CONSTRUCTION
METHOD
Revised 7/ 20 / 76
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— 20
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461-9
TYPICAL SECTION THRU
PROPOSED BRIDGE
FEDERAL AID PARTICIPATING I
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHEET NO. 3 OF 19
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. LEGEND
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DREDGE AREA' (SUBMERGED LAND)
FILL AREA ( SUBMERGED LAND
AND TRANSITION ZONE)
RUBBLE
0
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PROPOSED FILLING AND
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BUNCH No. 5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHEET NO. 4 OF 19
V 10
paq
TO KEY WEST
BEGIN PROJECT
STA. 168+00.00
170
R/W LINE
SILT BARRIER
175
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BUNCH No. 5 MAY 1976
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FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
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FOR ALT. "A'1 QUANTITIES
SEE SHEET 12
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
TO KEY WEST
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82
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PROPOSED FILLING AND
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BUNCH No.5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
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PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
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0
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2 M
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE —
BUNCH No. 5 MAY 1976
BRICGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
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END PROJECT
205 �208 SILT BARRIER STA. 208 +p0.00
Q CONST.
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SCALE I11= 100
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No.5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHEET NO. II OF 191
LO
W M
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o 8
2 rn
ADJACENT RIPARIAN OWNERS
Parcel No. Owners
O GEORGE B. ESPEY & SOPHIA C, ESPEY
5614 ROSECLIFF DRIVE
LORAIN, OHIO 44052
O2 WILLIAM G. BRYANT
R. F. D. #
.SPRINGFIELD , VT. 05156
3O LLOYD K. JOHNSON & MARION JOHNSON
517 TORREY BUILDING
DULUTH, MIN. 55802
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUN -CH No. 5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHE T U.12 G= 19
,•
6
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QUANTITIES FOR
CON ST. ALT. A
KEY WEST
MIAMI
TOTAL -
END
END
EST.
FILL AREA SUBMERGED LAND
0.46
AC
1.26
AC
1.72
AC
EST
FILL AREA TRANSITION ZONE
1.46
AC
0.34
AC
1.80
16,048
AC
C`,
EST. FILL VOLUME SUBMERGED LAND �
2,1.18 CY
139 930 CY
EST.
FILL VOLUME TRANSITION ZONE
12,113
CY
3,367
CY
15,480
14,500
CY
CY,
EST. DREDGE VOLUME SUBMERGED LAND
7,250 CY
71250 CYI
EST.
DREDGE VOLUME TRANSITION ZONE.
0
CY
0
CYO
0
C`'
EST.
DREDGE AREA SUBMERGED LAND
1.48
AC
1.48
AC
2.96
ACC
EST.
DREDGE AREA TRANSITION ZONE
0
AC
0
AC
0
.AC
0 EST. VOLUME INCLUDES RUBBLE
VOLUME INCLUDES
AND DREDGE FOR
PROPOSED BRIDGE.
DREDGE FOR PILES
BARGE ACCESS UNDER
DREDGE MATERIAL WILL BE UTILIZED IN THE
PROPOSED EMBANKMENT, SUBJECT TO THE
DEPARTMENTS EMBANKMENT UTILIZATION
SPECIFICATIONS.
FEDERAL AID PART i rl" I PAT I NG
PROPOSED FILLI'%G A^bD
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPA � NjrE.IT OF
TRANSPORT ;
SH,EET ",J0- 13 OF 19
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QUANTITIES FOR
CONST. ALT. " B
KEY WEST
ERD
M I A M I
END
TO TA L'
EST.
FILL AREA
SUBMERGED LAND
0.46
AC
1.26
AC
1.72
AC
EST.
FILL AREA
TRANSITION ZONE
1.46
AC
0 34
AC
1.80
AC
EST.
FILL VOLUME SUBMERGED LAND 0
2,118
CY
13,930
CY
16,048
CY
EST.
FILL VOLUME TRANSITION ZONE
12, 1 1 3
CY
3,367
CY
15,480 CY
EST.
TEMP. FILL
VOLUME SUBMERGED LAND
9,300
CY
9,300
CY
18,600
0
1.62
CY
CY x
ACI
EST. TEMP. FILL VOLUME TRANSITION ZO NE
EST. TEMP. FILL AREA SUBMERGED LAND
0 CY
0.81 AC
0 CY
0.81 AC
`EST.
TEMP. FILL
AREA TRANSITION ZONE
0
AC
0
AC
0
AC
0 EST. VOLUME INCLUDES RUBBLE
EST. 114 C.Y. FOR DREDGE FOR PILES. FEDERAL AID PAR"1 I C ! PAT i dC
PROPOSED FILLI,,S Af,�D
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPART 1,1ENT OF
SHEET NO. 14 OF 19
SECTION THRU ROADWAY AT STA. t75 +00
PROPOSED 4:1 SLOPE
MHW +UT MLW+0.37
SCALE: 1 5' VERT.
I u=2d HORIZ.
,
,
,
,, .�EXISTING SLOPE
JI
SEC. A -A
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE —
BUNCH No.S MAY 1976
BRIDGE NO.9OOO9O
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHEET NO. 15 OF 19
SECTION THRU ROADWAY AT STA. 190+00
PROPOSED 4:1 SLOPE
. --EXISTING SLOPE
MHW+1.17\ -------- '' `
�-_ i---- MLW +0.37
SCALE: I 5' VERT. SEC. B- B
111 = 201 HORIZ.
w
cr N
z 0
00
m 0)
FEDERAL AID PARTICIPATING]
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No. 5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
SHEET NO.16 OF 19
MHW
+ 1.17,
0�
w
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cr
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2 rn
SECTION THRU ROADWAY AT STA. 200 +00
PROPOSED 4:1
------- ------
EXISTING
i
i
i
-�MLW +0.37 - -
SCALE: I"= 5' VERT.
I"= 20' H-ORIZ.
SEC. C -C
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No.5 M AY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
mu.l—�--e4-- r.arz;a—s- .a .._... , ,;..,-...—:,c>a,. —
SHEET NO. 17 OF 19
MHW+I.I
rn
Lo
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00
tr N
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00
2 rn
SECTION THRU ROADWAY AT STA. 205+00
PROPOSED 4:1 SLOPE -
'EXISTING SLOPE
- M LW +0.37
SCALE :1 =5' VERT.
1 =20' HORIZ.
SEC.. D-D
FEDERAL AID PARTICIPATING
PROPOSED FILLING AND
DREDGING FOR SADDLE -
BUNCH No.5 MAY 1976
BRIDGE NO. 900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
0 10 20 Scale (Ft.)
0
0
0
N
20
FE
W 1
00
cr N
z 0
20)
0 10 20 Scale(Ft)
100,
E
PLAN
Proposed
Bridge —
M.H.W. + 1.17 M.L.W +0.37
2:1 Slope EI.-5.0
Existing Bay Bottom
SECTION E — E
DREDGE DETAILS
MM
Slope 2:1
3'-d'Min.
SHEET NO. 18 Or 19
•I'-6"(Stone & Slurry)
Slope 2:1
M.N.W.+ 1.1 7
— M.L.W.+0-37
slope Protection
SECTION THRU FORWARD SLOPE OF
PROPOSED BRIDGE
Limits of Proposed
_Slope Protection
Edge of Shoulder
Pavement I
I'-6"(Stone &M.H.W.+ 1.17Slurry) � M_LIN. +0.37
This slope to match
Roadway Fill Slope.
10�
20 SECTION THRU SIDE SLOPES
10. RI PRAP DETAILS
0
-5 FEDERAL AID PARTICIPATING
-10-PROPOSED FILLING AND
-15 DREDGING FOR SADDLE -
BUNCH No.5 MAY 1976
BRIDGE NO.900090
FLORIDA DEPARTMENT OF
TRANSPORTATION
0 I 20 Scale (Ft)
0
0
N
Pipes to be placed at the (.of each recess'
ir,_!Sand—cement Riprap
Temporary fill limits 1
iA
ti
t Proposed Bridge
-a)
Sand -cement i �
Riorao
0 10 20 Scale (Ft.)
20
10
0 MHWt 1.17
-5
-10 2 :1 Slope
M -15
w '
0 O
81 + (Typical)
PLAN
C. Proposed Bridge ^
El. t 5.0±
MLW +0.37
Existing Bay Bottom
2.1 Slope
SHEET NO. 19 OF 19
in
0
F
CROWN ELEV. OF PIPE WILL
BE BETWEEN EL.+ 1.17 TO
+1.67. FLOW LINE WILL FIT
NATURAL GROUND OR BE EX-
CAVATED TO MEET ABOVE
20 CRITERIA.
10
0
-5 FEDERAL AID PARTICIPATING
�I
-10 PROPOSED TEMPORARY FILLING
-15 AND DREDGING FOR SADDLE-,
BUNCH NO.5 MAY 1976 �
BRIDGE NO 900090
z N0 SECTION F - F
TEMPORARY FILL DETAIL FLORIDA DEPARTMENT OF
TRANSPORT ,TION