HomeMy WebLinkAboutR-91-0657A RESOLUTION AUTHORIZING AN INCREASE IN THE
CONTRACT AMOUNT NOT TO EXCEED $200,000 IN,
THE CONTRACT BETWEEN MANTELL ENGINEERING
CONTRACTORS, I.NC. AND THE CITY OF MIAMI,
FLORIDA, .DATED 'DECEMBER '7o 1990, IN THE
AMOUNT, OF $347,396.00t INCLUDING THE
ADDENDUM TOCONTRACT AGREEMENT DATED
NOVEMBER,21 1990s FOR THE DOWNTOWN SANITARY
SEWER REPLACEMENT -PHASE III PROJECT, CAPITAL
IMPROVEMENT PROJECT NO. 351281, WITH SAID
FUNDS TO BE PROVIDED FROM THE CAPITAL
IMPROVEMENTS ORDINANCE NO. 10782, FROM FUNDS
ALREADY'APPROPRIATED TO THE PROJECT; FURTHER
RATIFYING THE CITY MANAGER'S WRITTEN FINDING
THAT THE HEREIN INCREASE RESULTED FROM
EMERGENCY CIRCUMSTANCES BY AN AFFIRMATIVE
• VOTE OF FOUR -FIFTHS OF THE MEMBERS OF THE
CITY COMMISSION.
WHEREAS,.,there exists a contract dated December 7, 1990, in
the amount of $347,396.00, between Mantell Engineering
Contractors, Inc. ,and the City of Miami, including an Addendum to,
the Contract Agreement dated November 2, 1990, for Downtown
Sanitary Sewer Replacement - Phase III, Capital Improvement
Project_No, 35,12,81; and
WHEREAS an increase in the contract amount not to exceed
$200,000 is required to cover the cost of necessary extra worK
Involving previously unknown underground conditions consisting of
a direct conflict with a Florida Power & Light Company duct bank
and with the footin s f th D
g _ or a
owntown People, Mover. which
prevented the proposed construction
from proceeding In the manner
originally designed; and
WHEREAS, this extra work is
required in order to proceed
with the construction of the project out11 ned i.n th.e . p] ans, ,rand,
s ecifications• and
WHEREAS, the City Manager has
made a written finding theta
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. vaI # d emergency existed for the work to "continue in order''
mai ni 0 n, sdnl tar sewer service to
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the properties in the project
area; and
ient of Public WorKS
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;over the additional
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� are available from
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HE COMMISSION OF THE
3, a
Ised Public Hearings
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w
h in the Preamble to
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this Resolution are hereby ratified by an affirmative vote or
four fifths of the City Commission and are hereby incorporated by
reference thereto and adopted as if fully set forth in this
Section:
Section 2. The contract between Mantell Engineering
Contractors, Inc. and the City of Miami dated December 1, 19900
in the amount of $347,396.00, including -the Addendum .to . the
ti
Contract Agreement dated November 2' 1990, for the Downtown
'
H
Sanitary Sewer Replacement - Phase III Project, Capital+,
Improvement :project No.'351281,`is hereby inceeas'ed i`n an amount
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not to exceed $200,000 with funds for the increase to be.provided
from monies already appropriated to the project.`
Section 3. This Resolution snall become effective
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immediately upon its adoption.
PASSED AND ADOPTED this 11th day of September ,
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1991.'
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CITY OF MIAMI, FLOAIDA
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INTEA-OFFICE MEMORANDUM
TZ1 :
DATE : ! t + ►. FILE : B 5i
Honorable Mayor and Members
AUG 2 81991 ti
of the City Commission
suaJEcY . Downtown Sanitary Sewe:,r
Replacement Phasa..'tt
CIP Project 0351281 �k
REFE RENCES Emergency..Need For,
FiiDM :
Increase In Contract
Cesar' H . O d
ENCLOSURES
C,i ty: Manager.
RE.COMMENDATION:,
It is respectfully recommended that the city Commission adopt the
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attached Resolution authorizing an increase in the contract
amount not to exceed 200,DOn in the contract bet:we;en: Mantell:
Engineering Contractors, Inc. and the City of Miami, for.Downtown. fi
Sanitary -Sewer Replacement - Phase III,:Project No. 3.51281.
BACKGROUND:.,
The Department of Public Works has determined that in the best
interest ` of the taxpayers of the City of Miami, it i s now.
order for the Commission to authorize an increase in the contract
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amount -for the Downtown Sanitary Sewer Replacement - Phase 'III,
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Project No. 351281. r,
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During the early stages of the construction of this sanitary`
sewer replacement project, the • Ci ty's contractor di scover.ed `e
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previously, unknown underground conditions involving'1) a direct
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conflict with an existing F1 on da Power b Light Company el ectri c<
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duet bank and 2) direct conflicts with the footings for the,
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Downtown People Mover guideway supports.
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The F.P.L duct bunk is a major electric facility serving }Ft
properties along North ist Street between Biscayne.Boulevard.and
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N I E. 2nd Avenue. The _ Ci ty's replacement 'sewer was on gi na113r
designed utilizing the best available as -built information for; z
the F.P. L duct bank. Our contractor .was asked to dig a tesrt'hol a {
to 'verify the elevation and size of the duct bank. As a: result
of ` thi s excavation, staff determined that a confl ic.t with the ,7W4
duct bank could not be avoided and that the duct bank had to be
-+ �xti fcx,
relocated Due to the size" and importance of this FP.h
faciIity, the City cannot reasonably expect F.P.L. to absorb the s
entire cost of relocating his facility . The estimated coat
`� `
_s
ocatioIn muste
this relocation is approximately s5O,000. The r e I b
accomplished before the City- can complete thv sanitary,
installation.
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t �'l� y�t v.T •��
Honorable Mayor and Members
Of the City. Commission
During the contractor's excavation to install the new sewer on
North 1st Street between Biscayne Boulevard and N.E. 2nd;AvenUe,
f,or the
the contractor also discovered that the concrete footings
slightly,
Downtown People Mover guideway supports were constructed
designed. These oversized footings
largerthan originally
farther into the street, thus preventing the
extended
-construction of the sanitary sewers as originally designed by
developed
An alternate route for the new sewer was
City .staff. The
delivered to the city's contractor.
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and revised plans were
revised route required additional costs associated with working
-near and around the People Mover, other utilities and buildings
for
located at the right of way line. The estimated extra cost
the revised route will not exceed $150,000.
The total, additional cost associated with both, conditions
described above will not exceed $200,000. Since this project is
replacement project, the City` will be reimbursed by . Miami -Dade
,a
Water & Sewer Authority for the total construction cost including
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the additional 5200,000. Construction on' the project had to
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proceed so that sanitary sewer service would not be interrupted.'
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