Title
A RESOLUTION AUTHORIZING THE CITY MANAGER TO ENTER INTO A CONTRACT WITH GRUNWELL-CASHERO COMPANY FOR THE REPAIR AND RECONSTRUCTION OF THE DOWNTOWN PARKING TERRACE STAIRWELL PROJECT; AND DECLARING AN EMERGENCY.
Executive Summary: Technical Assurance, Inc. designed and prepared bid specifications for the repair of the downtown Parking Terrace northeast stairwell. The stairwell continues to deteriorate as dynamic forces move the flexible terrace deck into the rigid stand-alone stairwell structure. Current dynamic loading causes a diagonal twisting force from south to northwest. This movement is also allowing water to enter into the interior of the stairwell tower. This project has been publicly bid and Public Works now wishes to award the contract.
Body
Legislative History
Resolution 12-164, permission to bid Parking Terrace Stairwell Repair - Special Project.
Purpose & Explanation
The northeast stairwell tower continues to break apart and requires repair. The cause of the problem is an inadequate flexible joint that absorbs diagonal, shear and orthogonal movement. As the stairwell cracks due to movement, water infiltration and frost cracking continues to degrade the stairwell structure. Grunwell - Cashero Company will repair the stairwell and install improved expansion joints where specified. Flashing will be installed to prevent water infiltration within the structure.
To be prepared for a worst case scenario with potentially having to reconstruct the entire stairwell tower, Public Works budgeted $125,000 for this project. After a complete engineering inspection and investigation in to the persistent problems with the structure, Technical Assurance staff concluded that the structure does not need to be rebuilt but rather repaired and only partially reconstructed in certain identified sections.
Timing Considerations
Staff reviewed construction bids in May and would like to award the contract in June, start construction in July, and...
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