Ordinance 820 ORDINANCE NO. 820
AN ORDINANCE AP: NDING PART 6, CHAPTER 22
OF ORDINANCE NO. 592 OF THE CITY OF MIAMI
BEACH, FLORIDA COMTtONLY KNOWN AS THE
"MIAMI BEACH BUILDING CODE".
BE' IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF MIAMI BEACH,
FLORIDA:
Section 1. That Part 6, Chapter 22 of Ordinance No . 592 of the
City of Miami Beach, Florida, commonly known as the
"Miami Beach Building Code" be and the same is hereby amended
by addingthereto at the end thereof the following:
6.22.08 Bulkheads, sea walls , and other retaining walls along
a bay, creek, canal, lake, or waterway, not including
the shores of the Atlantic Ocean .
.01 The structures shall be constructed to
retain the adjoining earth from the surface
of the ground to a point one (1) foot below
the normal bed of the waterway measured along
the waterside face of the structure and shall •
be so designed that they will resist earth,
water, surcharge pressures, and wave action.
When riprap is placed below a structure and
has side slopes not steeper than one (1) hori-
zontal to one (1) vertical and does not extend
above elevation minus 1.0 and has a width at
the top of at least three (3) feet greater
than the width of the base of the structure
above , it will be classified as retaining the
adjoining earth. Riprap construction shall
not be used. in Collins Canal. In no event
shall the bottom of a structure , except where
riprap is used, be above elevation minus 2.0.
.02 Plans and specifications shall be fur-
nished for new construction or reconstruction
and shall bear the signature and/or seal of
a professional engineer registered in the
State of Florida and in good standing with
the State Board.
.03 The use of timber for structural pur-
poses except for piling and where timber is
buried in earth and located below water table
is hereby prohibited.
.04 Structures constructed of plain or rein-
forced concrete shall be classified as gravity
types when the resultant of the acting forces
fall within the middle third of the base.
Structures which are not of gravity type shall
be secured to properly designed anchors placed
to the rear. Anchorage will not be required
for concrete gravity type structures.
.05 Structures may be constructed of a com-
bination of lime rock boulders and plain or
reinforced concrete . The minimum percentage
of cross section area of concrete to the total
cross section area of the structure shall be
40%, not including concrete used for copings
or decorative purposes. Boulder type Walls
having a base dimension less than the height
shall be secured to properly designed anchors
placed to the rear. Anchorage will not be required
for structures having a base equal to or greater
• than the height, a top width of at least 18" and uni-
form slopes from top to bottom. All boulders except
those included in riprap shall be joined together by
means of Portland Cement mortar or concrete.
.06 All structures shall be supported by piling ex-
cept the boulder type having a width of base at least
equal to the height.
.07 Work involving strengthening or minor repairs to
existing structures need not conform to the requirements
of this Ordinance.
SECTION 2: That all ordinances or parts of ordinances in conflict
herewith be and the same are hereby repealed.
SECTION 3: That the welfare of the City is in peril and this ordi-
nance is hereby declared to be an emergency measure
and to be necessary for the immedidte preservation of the public
safety and the three readings thereof shall be had at one session
and this ordinance shall go into effect immediately upon its
passage.
PASSED and ADOPTED this 1st day of October, A. D. , 1947.
4'644'
Mayor
ATTEST:
C. W. Tomlinson, City Clerk
BY: A2t--9--1A.A... kii&La-fre—
Denuty
City Ck •
1st reading - October 1, 1947
2nd reading - October 1, 1947
3rd reading - October 1, 1947
Posted - October 1, 1947
•
STATE OF FLORIDA
COUNTY OF DADE:
I, C. W. TOMLINSON, City Clerk in and for the amity of
Miami Beach, Florida, do hereby certify that Ordinance No. 820,
entitled: "AN ORDINANCE AMENDING PART 6, CHAPTER 22 OF ORDINANCE
NO. 592 OF THE CITY OF MIAMI BEACH, FLORIDA, COMMONLY KNO1tN AS THE
"MIAMI BEACH BUILDING CODE", having been passed and adopted by the
City Council of the City of Miami Beach, Florida, has been posted
by me in three conspicuous places in the City of Miami Beach,
Florida, one of which was at the door of the City Hall in said City
on the 1st day of October, A. D. , 1947, and that said Ordinance
remained posted for a period of at least thirty days in accordance
with the requirements of the City Charter of the City of Miami
Beach.
IN WITNESS WHEREOF I have hereunto set my hand and affixed
the official seal of the City of Miami Beach, Florida, on this the
13th day of November, A. D. , 1947.
City Clerk
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