REPORT TO THE CITY COUNCIL
November 3, 2016
FROM: KEVIN R. MEIKLE, Director of Aviation
Airports Department
SUBJECT
Title
Approve Contract Change Order Number 2 in the amount of $128,479.63 for additional work on the Taxilane Reconstruction project at Fresno Chandler Executive Airport (Bid File 3419) (Council District 3)
Body
RECOMMENDATION
Staff recommends Council approve Contract Change Order Number 2 (CCO2) for the Taxilane Reconstruction project (Project) at Fresno Chandler Executive Airport (FCH) in the amount of $128,479.63.
EXECUTIVE SUMMARY
The Airports Department has substantially completed construction of a Federal Aviation Administration (FAA) funded project to replace existing taxilanes and pavement adjacent to S and T-Hangars, install drainage facilities, and slurry seal pavement east and west of Q-Hangars at FCH. During the course of construction unforeseen saturated subgrade soil was encountered over a widespread area of the Project. The proposed change order will compensate the contractor for work to remove the saturated soil and provide stabilized subgrade as required to meet specifications and add 20 calendar days to the contract. The FAA has determined costs associated with this CCO2 are eligible for Airport Improvement Program (AIP) funding and approved the change on October 6, 2016.
BACKGROUND
Council awarded a contract for the Project to A. J. Excavation, Inc. of Fresno, CA, on October 29, 2015. Construction began in April 2016 with an anticipated completion date of July 3, 2016. After demolition of the asphalt pavement and aggregate base, the subgrade began to show signs of lateral and vertical displacement under the load of the grading equipment. The Project Engineer evaluated the conditions and determined that mitigation efforts would be required. The contractor was directed to remove unstable subgrade, treat as necessary and reconstruct the subgrade section using geotextile fabrics and aggregate base material for ...
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