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Exhibit C - Page 1 Page 1 of 3 CHANGE ORDER BACK-UP DOCUMENTATION FIN No.: 436379-1-54-01 & 436379-1-54-02 Contract No: IRC -1505 Change Order No.: 02 Amount $ 841,817.35 and 60 Days Title of Issue Widening the 53rd Street Bridge from three (3) proposed travel lanes to five (5) proposed travel lanes. I. Entitlement Analysis The purpose of this Change Order is to compensate the Contractor to construct the 53rd Street Bridge over Lateral A Canal based on the redesigned 5 -lane typical section. Further, the Contractor agreed to a Lump Sum (LS) amount and an addition of sixty (60) days Contract time. There are many benefits to the redesign, including being able to accommodate future growth by being able to accommodate additional travel lanes. Other benefits include upgrading the bridge structure to the current FDOT Standards and changing from a prestressed/post tension single deck superstructure design to a prestressed Florida Slab Beam (FSB) design which decreases long-term maintenance costs & increases life of the structure. The net addition to the Contract will be $841,817.35, which includes pay item overruns, jobsite overhead and other indirect costs associated with the 60 -day time extension necessary to complete this work plus additional maintenance of traffic & erosion control for the additional 60 -day period. II. Time Analysis The Contractor is pursuing a 60 -day time extension to complete the additional work. III. Engineer's Estimate a. Basis of Estimate The Engineer's Estimate was based on the original Contract unit prices plus a "delta" based on the current State -Wide -Average (SWA) minus the State -Wide -Average at time of original bid, multiplied by the Engineer -of -Records' revised quantities for a 5 -lane design. Considering the increase in unit cost is appropriate as the decision to proceed with the 5 -lane typical section redesign occurred at this time and the Contractor was unable to proceed with procurement of the original 3 -lane design components. To this we added Jobsite Overhead & Other Indirect Expenses as a function of total Mobilization, Maintenance of Traffic (MOT) and Erosion Control based on a per day rate using the original Contract time and original Contract bid price multiplied by the 60 -day time extension. Mobilization, MOT & Erosion Control are all original Contract pay item bid as one Lump Sum for original Contract time of 750 days. This resulted in an Engineer's Estimate totaling $848,256.54. Mobilization MOT Erosion Control Phase 1A $1,400,000 $230,000 $120,000 Phase 1B $1,800,000 $400,000 $145,000 $3,200,000 $630,000 $265,000 Divided by 750 days for a daily rate: $4,267 $840 $353 Multiplied by 60 day time extension: $256,000 $50,400 $21,200 186