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Date
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December 7,
2009
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Agenda
Item No. 6 Roll
Call No. 09- Communication No.
09-850 Submitted by: Jeb E. Brewer, P.E. City
Engineer |
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AGENDA
HEADING:
Approving
Change Order No. 2 (not to exceed $80,236) and Change Order No. 3 (not to
exceed $86,257.94) with United Contractors, Inc. and Subsidiaries, for
additional work on the Southeast Connector – Des Moines River Bridge with
Levee, Sanitary Sewer, and Water Main Relocation.
SYNOPSIS:
Recommend approval of Change
Order No. 2 in an amount not to exceed $80,236 for the removal of boulders from
various bridge pier footings, and Change Order No. 3 in an amount not to exceed
$86,257.94 for the installation of additional reinforcing steel, with United
Contractors, Inc. and Subsidiaries, Gary Sandquist, President, 6678 N.W. 62nd
Avenue, Johnston, Iowa, 50131.
FISCAL
IMPACT:
Amount: $80,236.00 (Change Order No. 2) and $86,257.94
(Change Order No. 3)
Funding Source: 2009-10 CIP, Page Street-35, Southeast
Connector – SW 2nd to SE 6th Street, STR214.
ADDITIONAL
INFORMATION:
The contract for
the construction of the Southeast Connector Des Moines River Bridge with Levee,
Sanitary Sewer, and Water Main Relocation was awarded to United Contractors,
Inc. and Subsidiaries, in the amount of
$12,256,914.02. This construction
contract is to construct the Southeast Connector Bridge over the Des Moines
River, along with related relocations.
Change Order
No. 2 compensates the contractor for 165.22 CY of boulder removal (Class 22
Excavation). While excavating for the
various bridge pier footings, boulders were encountered and had to be
removed. This change order also
compensates the contractor for disposal of unsuitable excavation, which was
discovered while excavating for pier #6 on the eastbound Southeast Connector
Bridge. This material was unsuitable to
be used to backfill around pier #6 (which lies within the limits of the Corps
of Engineers levee) or to be used anywhere else on this project.
Change Order
No. 3 compensates the contractor for an additional 32,544 lbs. of reinforcing
steel and 58,051 lbs. of epoxy coated reinforcing steel, which must be
incorporated into the pier caps, pier diaphragms, abutment footings, and bridge
deck. This change order also compensates
the contractor for the increase in material and freight cost of the additional
epoxy coated reinforcing steel, which must be incorporated into the bridge
decks.
This project
was bid using the Iowa Department of Transportation specifications, which
require that the actual quantities of work completed be measured and paid for
at the unit prices included in the contract.
PREVIOUS COUNCIL ACTION(S):
Date: April 7, 2008
Roll Call No.: 08-615
Action: On Southeast Connector-Des Moines River Bridge with Levee Sanitary Sewer and Water Main Relocation: Resolution approving plans, specifications, form of contract documents, Engineer’s Estimate and designating lowest responsible bidder as United Contractors, Inc. and Subsidiaries, (Gary B. Sandquist, President), $12,256,914.02. (Council Communication No. 08-196
) Moved by Meyer to adopt. Motion Carried 6-1.Action:
Southeast
Connector – Des Moines River Bridge with levee, sanitary sewer, and water main
relocation – Receiving of bids, (3-18-08), and Setting date of hearing,
(4-7-08). (Construction
Estimate - $9,975,000). (Council
Communication No. 08-119) Moved
by Hensley to adopt. Motion Carried 7‑0.
BOARD/COMMISSION
ACTION(S): NONE
ANTICIPATED
ACTIONS AND FUTURE COMMITMENTS:
Normal
actions for award of the construction contract for the work.