Meeting_Body
CONSTRUCTION COMMITTEE
OCTOBER 20, 2016
Subject/Action
SUBJECT: REGIONAL CONNECTOR TRANSIT CORRIDOR PROJECT
ACTION: AUTHORIZE THE CHIEF EXECUTIVE OFFICER (CEO) TO EXECUTE A CONTRACT MODIFICATION TO CONTRACT C0980 TO REVISE CONSTRUCTION SEQUENCING AND ALLOW FOR EARLIER RETRIEVAL OF TBM
Heading
RECOMMENDATION
Title
AUTHORIZE the Chief Executive Officer to negotiate and execute Modification No. 73 to Contract No. C0980, with Regional Connector Constructors, to Revise Construction Sequencing and Allow for Earlier Retrieval of the Tunnel Boring Machine (TBM), within a not-to-exceed amount of $3,700,000 increasing the total contract price from $995,188,519 not-to-exceed $998,888,519. This action does not increase the life-of-project budget.
Issue
ISSUE
On April 30, 2015, the Metro Board approved Contract Modification No. 10, to transfer incomplete utility relocation work from Contract No. C0981R to Contract No. C0980 for a not-to-exceed amount of $27.1 million. On December 3, 2015, the Metro Board approved Contract Modification No. 32, for additional utility work and schedule recovery measures, in an amount not-to-exceed $49.0 million. One of the schedule recovery measures included the re-sequencing of piling and decking work on Flower Street to facilitate an earlier retrieval of the TBM following boring of the first tunnel, which is a critical path activity.
In the ensuing 10 months, cumulative impacts have occurred on Flower Street which have been beyond the contractor's control and have led to two additional months of forecasted delay to the project critical path. To avoid this delay and associated costs, the project team has developed a further schedule recovery approach which permits a faster excavation of the TBM retrieval shaft located at the intersection of 4th and Flower streets. This approach requires additional design, piling, night-time and weekend work at additional project cost. The project is seeking authority to issue a con...
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