CITY OF VANCOUVER

ADMINISTRATIVE REPORT

 

Report Date:

March 10, 2005

 

Author:

Merv Robertson

 

Phone No.:

604.873.7321

 

RTS No.:

04971

 

CC File No.:

1805/5752-3

 

Meeting Date:

March 29, 2005

TO:

Vancouver City Council

FROM:

General Manager of Engineering Services

SUBJECT:

Award of Contract No. 2005-01
Seismic Upgrading of Burrard Bridge South Approach

RECOMMENDATION

CITY MANAGER'S COMMENTS

The City Manager RECOMMENDS approval of A, B, C and D.

COUNCIL POLICY

Construction contracts more than $300,000 are to be awarded by Council.

PURPOSE

The purpose of this report is to obtain Council approval to award Contract No. 2005-01 for the seismic upgrading of the expansion piers at the south approach of the Burrard Bridge.

BACKGROUND

A program to improve the performance of the Granville and Burrard bridges and the Grandview Viaduct during a major earthquake was undertaken during the 1990's. All phases of the seismic upgrading of the Granville Bridge and the Grandview Viaduct have been completed as of 1996. On the Burrard Bridge, the steel truss spans have been strengthened, new improved bearings have been installed and the north approach of the bridge has been upgraded. The only seismic work remaining in this program is the strengthening of the south approach spans of the Burrard Bridge, south of False Creek.

The work consists of the strengthening of the six sets of expansion piers (bents) which are every third bent on the south end of the bridge. The work includes PCB testing and clean-up, the construction of new reinforced concrete footings overlaying and tying the three existing footings together, reinforced concrete encasement of the columns and the crossbeams, and the installation of steel lateral restraints and longitudinal restrainers.

DISCUSSION

On November 16, 2004, Council approved the seismic upgrading of the Burrard Bridge South Approach Project. A "Notice to Contractors" tender advertisement was placed in the January 17th, 2005 Journal of Commerce newspaper, and tender notices were placed with BC Bid, the BC Road Builders & Heavy Construction Association and the Vancouver Regional Construction Association. Twenty-seven companies requested and received the Tender Documents and Drawings.

Tenders for Contract No. 2005-01 for the seismic upgrading of Burrard Bridge South Approach were opened on Wednesday, March 9, 2005 and referred to the General Manager of Engineering Services for tabulation. Seven tenders were received. All tenders have been checked for completeness and accuracy by Engineering Services and the City's Consultant, Buckland & Taylor Ltd. A tabulation of the Total Tender Prices including GST is shown below with the lowest tender underlined.

This is a lump sum Contract with unit prices for additions and deletions. Each Contractor has submitted a Total Tender Price for all work under the Contract. Also, as requested, the Contractors have submitted a breakdown of the Total Tender Price which will be used for computation of interim payments. The final cost of the contract may vary as a result of any additions and deletions, and extra or "force account" work, if required.

There will also be various costs incurred for this project which will be in addition to the Total Tender Price in the Contract and these will include engineering consultant fees, plugging of catch basins by City Forces, cleanup of PCB's by an environmental Contractor, tender advertisement costs, printing and delivery of notices, etc. and the City's overhead.

The tender submitted by the low bidder, Mutual Construction (2000) Ltd., is in accordance with the specifications in the Contract documents and is deemed reasonable. The Contractor has provided an acceptable construction schedule. This company has several years experience in related construction work, and their qualifications are considered acceptable for this Contract. Therefore, it is recommended that they be awarded Contract No. 2005-01.

FINANCIAL IMPLICATIONS

Prior to tendering, the total estimated cost and budget for the project was $4.5 million. On November 16, 2004, Council authorized the City to participate in the Canada/British Columbia Infrastructure Program, whereby Federal and Provincial funding of up to $2 million would be provided to the Burrard Bridge Seismic Upgrading project, and Council also approved that $2.5 million be allocated as the City's share from the $20 million approved through the Capital Plan plebiscite for cost shared projects. Funding of $4.5 million for the project has been set up in Streets Basic Capital Order Group CB3EA6A.

However, considering the low bid by Mutual Construction (2000) Ltd. for the construction contract, Engineering Consultant fees of $120,000 for the design, construction administration and inspection, preliminary PCB clean-up work, work by City Forces, and overhead and a small contingency, it is now expected that the total project costs will be closer to $4.7 million. The tender by Mutual Construction has been reviewed and has been deemed reasonable.

It had not been anticipated when preparing the original cost estimate that construction prices including reinforcing steel, structural steel and placement of concrete would have escalated as they have over the last year. It is the result of these cost increases since our cost estimate was prepared, that there is a shortfall of about $200,000 in the funding. As the original $2.5 million of the City's share of the project costs were approved to be allocated from the $20 million of borrowing authority approved through the 2003 - 2005 Capital Plan plebiscite to provide the City share of cost shared projects, it is recommended that the allocation from the $20 million be increased by $200,000 to cover the expected shortfall for this project.

CONCLUSION

It is recommended that Contract No. 2005-01 for the Seismic Upgrading of the Burrard Bridge South Approach be awarded to the low bidder, Mutual Construction (2000) Ltd., and that the allocation from the $20 million of borrowing authority for cost shared projects be increased from $2.5 million to $2.7 million for this project.

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