Explanation
1. BACKGROUND
The City of Columbus, Department of Public Service, Division of Design and Construction currently holds a contract with CTL Engineering, Inc. for materials testing and inspection. This legislation authorizes the Director of Public Service to modify and increase this contract with CTL Engineering, Inc. in the amount of $100,000.00.
Work performed to date on this contract includes Soil classification, asphalt lab support, concrete/asphalt plant mix inspection and preliminary field investigation, batch plant inspections at various Ready-Mixed Concrete and Hot-Mixed Asphalt plants, provide density data on all construction projects with asphalt pavement layers in compliance with Construction and Materials Specifications, supplement the City laboratory sampling and coring program, review and verify concrete and asphalt mixes submitted by suppliers / producers on an annual basis before incorporation in the City approved list.
This contract could not be bid out as the City already has an obligation under a 3-year contract with an independent consultant. The City has had an independent consultant to support its materials testing activities on a 3-year contractual basis. The successful bidder this period (3-years renewed yearly) was CTL Engineering, Inc.
Consultant activities depend on the actual volume of work performed for the yearly construction season; such activities vary depending on projects letting and delivery and hence dictate a need for a contractual period more than one year to support City QC/QA and testing.
The original contract amount was $19,900.00. Modification #1 was authorized by ordinance 0986-2010 in the amount of $31,860.00 for the described testing. This ordinance authorizes the second modification in the amount of $100,000.00. This amount is based on current and projected testing needs for the 2011 construction season.
The total contract amount including this modification is $151,760.00.
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