Council Communication Office of the City Manager	Date	March 9, 2009
	Agenda Item No. 9 Roll Call No. 09- Communication No. 09-137 Submitted by: Jeb E. Brewer, P.E. City Engineer

AGENDA HEADING:

Approving Change Order No. 6 with Christensen Bros., Inc., for additional work on the S.W. 9^th Street Viaduct over M.L. King Jr. Parkway Rehabilitation project, in an amount not to exceed $94,116.10.

SYNOPSIS:

Recommend approval of Change Order No. 6 in an amount not to exceed $94,116.10 with Christensen Bros., Inc., Scott Christensen, President, 644 River Road, P.O. Box 478, Cherokee, Iowa 51012, for additional bridge floor repair, curb repair, parapet wall repair, diaphragm replacement, drain scupper repair, and drain pipe fabrication.

FISCAL IMPACT:

Amount: $94,116.10

Funding Source: 2009-10 CIP, Page Bridge 17, SW 9^th Street Viaduct over M.L. King Jr., Parkway BRV034, various funding being:

• $1,000,000 Federal Highway Bridge Replacement and Rehabilitation (HBRR) funds (80% of eligible construction to $1,000,000 maximum) and
• Remainder in G.O. Bonds

ADDITIONAL INFORMATION:

The contract for the rehabilitation of the S.W. 9^th Street Viaduct over M.L. King Jr. Parkway Rehabilitation project was awarded to Christensen Bros., Inc., in the amount of $1,327,654, which was $132,017.20 under the original engineer’s estimate of $1,459,671.20.

The S.W. 9^th Street Viaduct over M.L. King Jr. Parkway Rehabilitation project was designed to restore the structural integrity to the structure. During construction, the amount of deterioration was found to be more than had been estimated during the design of the project. This change order adjusts the estimated quantities for bridge floor repair, curb repair, and parapet wall repair. The change order also adds replacement of diaphragms that were too deteriorated to repair, repair of seven drain scuppers that were badly corroded, and drain pipe fabrication to repair corrosion and freeze damage. This project was bid using the Iowa Department of Transportation (IDOT) specifications, which require field measurements of bridge repair items, because the quantities must be determined during removal operations. The $94,116.10 cost of this change order adjusts final contract quantities for these items to as-built quantities.

PREVIOUS COUNCIL ACTION(S):

Date: December 6, 2004

Roll Call No. 04-2657

Action: On SW 9^th Street Viaduct over M.L. King, Jr. Parkway and Railroad Bridge Rehabilitation:  Resolution approving plans, specifications, form of contract documents, Engineers estimate and designating lowest responsible bidder as Christensen Bros., Inc. (Scott Christensen, President), $1,327,654. Moved by Hensley to adopt. Motion Carried 7-0

Date: December 6, 2004

Roll Call No. 04-2658

Action: Approving contract and bond and permission to sublet. 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.

For more information on this and other agenda items, please call the City Clerk’s Office at 515-283-4209 or visit the Clerk’s Office on the second floor of City Hall, 400 Robert D. Ray Drive. Council agendas are available to the public at the City Clerk’s Office on Thursday afternoon preceding Monday’s Council meeting. Citizens can also request to receive meeting notices and agendas by email by calling the Clerk’s Office or sending their request via email to cityclerk@dmgov.org.