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Date
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March 26, 2007
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Agenda
Item No. 10 Roll
Call No. 07- Communication No. 07-153 Submitted by: Jeb E. Brewer, P.E. City
Engineer |
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AGENDA HEADING:
Approving
Change Order No. 2 with Cramer & Associates, Inc. for additional work on
the University Avenue Bridge over the Des Moines River – Arch Rehabilitation
for a total not to exceed $123,116.
SYNOPSIS:
Recommend approval of Change Order No. 2 in an amount not to exceed
$123,116 with Cramer & Associates, Inc., Robert Cramer, President/CAO, 990
N.E. 44th Avenue, Des Moines, Iowa, 50313, for additional work on
the University Avenue Bridge over the Des Moines River – Arch Rehabilitation to
provide additional arch removal and repair, arch waterproofing, and concrete
repair.
FISCAL IMPACT:
Amount:
$123,116
Funding Source: 2007-08 CIP, Page
Bridge-18, University Avenue Bridge over the Des Moines River, BRV036, G.O.
Bonds
ADDITIONAL INFORMATION:
The University Avenue Bridge over the Des Moines River – Arch
Rehabilitation project was designed to restore the structural integrity to the
bridge substructure. During
construction, the amount of deterioration on the arches was found to be more
than estimated during the design of the project. As construction has progressed, the estimated quantities for arch
removal and repair, arch waterproofing, and concrete repair have been
exceeded. This project was bid using
the Iowa DOT specification which requires field measurements of bridge repair items,
because these quantities must be determined during removal operations. This increase is an estimate of the
additional arch removal and repair, arch waterproofing, and concrete repair
that will be required to complete the remaining span. The $123,116 cost of this change order item is the engineer’s
estimate of the increase in quantities required to complete the remaining span
based upon the current rate of required removals.
PREVIOUS COUNCIL ACTION(S):
Date:
June 6, 2005
Roll Call Number: 05-1444
Action: On
University Avenue Bridge over the Des Moines River – Arch Rehabilitation: Resolution approving plans, specifications,
form of contract documents, Engineer’s estimate and designating lowest
responsible bidder as Cramer and Associates, Inc. (Robert Cramer,
President/CAO, DSM), $1,463,991.40. (Council
Communication No. 05-324) Moved Vlassis to adopt. Motion Carried 7-0.
Date:
October 9, 2006
Roll Call Number: 06-1955
Action: Approving
Change Order No. 1 with Cramer & Associates, Inc. for additional work on
the University Avenue Bridge Over the Des Moines River-Arch Rehabilitation,
$78,095. (Council
Communication No. 06-631) Moved by Vlassis to adopt. Motion Carried 6-0.
BOARD/COMMISSION ACTION(S): NONE
ANTICIPATED ACTIONS AND FUTURE
COMMITMENTS:
Normal
Council actions on construction contracts.