Explanation
1. BACKGROUND
This legislation authorizes the Director of Public Service to modify and increase the construction contract with Double Z Construction for the Bridge Rehabilitation - Major Bridge Rehabilitation project in an amount up to $1,768,257.33 and to provide additional construction inspection for this project in the amount of $185,426.28.
Company Name City/State Majority/MBE/FBE
Double Z Construction Columbus, OH Majority
Ordinance 1820-2010 authorized the Department of Public Service to enter into contract for the Bridge Rehabilitation - Major Bridge Rehabilitation Project which consisted of the rehabilitation of 2 bridges, the Calumet Street Over Glen Echo Ravine structure and Fisher Road Over CSX and Norfolk Southern Railroad West of I-270 structure.
The original intent of the current construction contract for the Calumet Street over Glen Echo Ravine structure was to extend the life of the structure until a full rehabilitation or replacement could occur. The proposed work included rehabilitation of 7 of the 9 piers, fiber wrap 2 of the piers to increase their strength, rehabilitating box beams, rehabilitation on the abutments, rehabilitation on the arch, waterproofing the deck, and a new asphalt overlay.
After the concrete chipping began, it was determined by the project that a further structural analysis was needed to be performed on this structure due to the poor condition of the existing piers and arch. This analysis was performed by R. W. Armstrong and they made an initial recommendation.
Their recommendation was that 5 of the piers would need to be encased/retrofitted, additional rehabilitation on the box beams needed to be performed, the expansion joints needed to be moved from piers 3 and 8 to the abutments to make them semi-integral, additional rehabilitation on the arch needed to be made, and a new concrete deck needed to be installed.
After a cost analysis was performed on this pro...
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