Explanation
BACKGROUND: This legislation authorizes the Director of Public Utilities to modify an existing engineering agreement with Black & Veatch Corporation for the Lockbourne Intermodal Subtrunk Air Quality Improvements project, CIP 650491-100005. As part of the Northern Pickaway Joint Economic Development District (JEDD) agreement the City of Columbus agreed to construct the sanitary sewer infrastructure necessary to serve the district. A majority of that area will be served via the 60-78” Lockbourne Intermodal Subtrunk Sewer (LIS) which is currently under design. During the design of this sub-trunk, a preliminary ventilation and odor control study conducted by HWS (Harvey W. Sorensen) in September of 2013 determined that air quality control would be required in order to prevent odor releases and pressurizing of the sanitary system. To date, the consultant has completed the project design, bidding phase and has conducted 12 months of engineering services during construction.
This project is located in the 64 - Far South Columbus Community.
Modification Information: Amount of additional funds: $157,348.10
Initial Contract $576,425.09 (EL017419)
Modification #1 $159,049.49 (PO152911)
Modification #2 $157,348.10 (current)
TOTAL $892,822.88
Reasons additional goods/services could not be foreseen:
The main driver for this unplanned modification is due to the slow progress of the contractor and their notice that they will be at least 10.5-11 months beyond the contract completion date. Black &Veatch did budget for a period this long. There are also a number of submittals still outstanding which require additional time/funding in order to process.
Reason other procurement processes are not used:
Re-bid of the project will likely result in a higher project costs as much of the project history would be lost and would need to be rediscovered by another consultant un...
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