AGENDA MEMO
Approval of a resolution authorizing the Mayor and
City Clerk to execute a contract for the 2012 Neighborhood Drainage Program
between the City of Darien and Scorpio Construction Corp for the layout and
replacement of storm sewer pipes and structures, and grading in an amount not
to exceed $50,975.00.
BACKGROUND
The
proposed FY 12-13 Budget includes funds for the following neighborhood drainage
projects:
Poplar Lane – Janet Avenue to Elm
Street; and Bentley Avenue – 71st Street to 72nd Street;. Residents adjacent to these
projects have requested that the City address standing water in the ditches
fronting their residences. The scope of
work under the proposed contract would include the removal and replacement of
culverts, removal and installation of inlets as required, ditch regrading, and
bank stabilization and preparation for landscape restoration. All materials and
outsourcing for landscaping, bituminous surface, concrete, testing, trucking
and tipping and transfer fees were approved earlier this year under separate
agenda memos.
Below
is a narrative of the projects:
Poplar Lane from Janet Avenue to Elm Street. The existing
conditions on Poplar Lane within the eastern and western right of way do not
allow the conveyance of storm water from Janet Avenue to Elm Street ditches.
The proposed project would include the removal and replacement of deteriorated
culverts, installation of inlets as required, the enclosure of ditches as
necessary, and approximately 1200 lineal feet of ditch regrading. The project goal is to allow storm water to
flow at the optimal level. Poplar Lane is scheduled for a street resurfacing
project this year under a separate contract.
Bentley Avenue between 71st Street and 72nd
Street. The existing conditions within the eastern and western right of way do
not allow the conveyance of storm water from 72nd Street to 71st
Street ditches. The proposed project
would include the removal and replacement of deteriorated culverts, removal and
installation of inlets as required, the enclosure of ditches as necessary, and
approximately 1200 lineal feet of ditch regrading.
The project goal is to allow storm water to flow from 72nd Street to
71st Street. Bentley Avenue
is scheduled for a street resurfacing project this year under a separate
contract.
Staff had received five (5) sealed bids on January 20,
2012, see Attachment A. The bid
tabulation includes a base bid with alternatives. Attachment B summarizes the
bid costs for the 2012 Neighborhood Drainage Program.
The proposed contract with Scorpio
Construction Corp includes the following:
A. Field
Layout
B. Removal
and Placement of Deteriorated Pipes
C. Removal
and Placement of Inlets, Catch Basins and Grates
D. Ditch
Regrading
Scorpio Construction has provided services for the
ditching program in 2008, 2010 and 2011 with very satisfactory results. Please
see attached pages 5-8, a Cost
Summary as it relates to the projects. The vendor will be charging the City an
additional $3,500 for mobilization due to the proposed projects being
alternates and not part of the base bid. (See e-mail)
The
proposed expenditure would be from the following account:
|
ACCOUNT NUMBER |
ACCOUNT DESCRIPTION |
FY 12/13 BUDGET |
PROPOSED EXPENDITURE TO SCORPIO |
TOTAL PROJECT COST |
PROPOSED BALANCE |
|
25-35-4376 |
DITCH PROJECTS |
$ 884,543.00 |
$ 50,975.00 |
$ 223,800.00
|
$ 660,743.00 |
COMMITTEE RECOMMENDATION
The
Municipal Services Committee recommends approval of the proposed contract with
Scorpio Construction Corp for Projects - Poplar Lane and Bentley Avenue.
ALTERNATE CONSIDERATION
As
directed by the City Council.
This item will be placed on
the April 16, 2012 City Council agenda for formal approval.