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Exhibit A- Supplement 2 <br /> o Temporary pavement marking removal to reflect pavement marking pay item changes by <br /> IDOT <br /> o Sanitary service to be adjusted <br /> o Pay items with names which were changed by IDOT and had special provisions, which <br /> needed to reflect the name change <br /> Quantity Take-Offs and Opinions of Cost: The AECOM Team will update quantity take-offs to <br /> reflect changes to IDOT pay items and prepare an updated project opinion of cost for the Final <br /> submittal for the January 2022 letting. <br /> o Quantities associated with the revised ICRR maintenance road to accommodate Ameren <br /> Pole IOD <br /> o Quantities associated with pay item changes for pavement markings and pavement marking <br /> removal by type <br /> o Quantities for the building demolition and asbestos items <br /> Estimate of Time:The AECOM Team will update the suggested Estimate of Time for Phase III <br /> construction activities to reflect the January 2022 letting. The estimate of time is based on the pay <br /> items,quantities,and construction daily production rates.These will be reviewed and updated for the <br /> pay items and quantity revisions identified for this submittal. <br /> Update and Submit Final PS&E for a Single 2023 Letting <br /> The AECOM Team will update the contract plan submittal for one 2023 letting as described below in further <br /> detail. These changes are needed because IDOT will release the 2023 IDOT Supplemental Specifications and <br /> letting specific updates. In addition, IDOT released Accessible Pedestrian Signals(APS), which will need to <br /> be integrated into the proposed permanent signal design: <br /> - Design: The AECOM Team will design the relocation of the sanitary sewer line crossing the east <br /> leg of Faries Parkway from the existing edge pavement to the limits of the slope grading. <br /> - Plans: The AECOM Team will provide engineering design services required for the preparation of <br /> Construction Documents for the bridge and roadway construction. The AECOM Team will update <br /> the contract plans for one 2023 letting. This will include the following items: <br /> o Review of IDOT BDE and BLRS pay items for a 2023 letting and updating the pay items <br /> and quantities on the SOQ,Schedules,and plan callouts. All pay items will be compared <br /> against the IDOT pay items and the following IDOT pay items will be updated: <br /> o Coordination with IDOT regarding the creation of Bureau of Local Roads pay item numbers <br /> for one 2023 letting. <br /> o Removal of the building demolition sheets,which was progressed as a separate contract. <br /> o Incorporate APS design,which will also result in additional Phase III coordination effort <br /> with the contractor <br /> o Incorporate sanitary sewer relocation on design plans, schedule, and SOQ <br /> o Revisions to drainage design from any resulting potholing information if provided by the <br /> City of Decatur prior to the QA/QC phase for the PS&E <br /> Specifications:The AECOM Team will update the specifications for one 2023 letting using IDOT <br /> fonnat to reflect any changes to pay items resulting from the 2023 Supplemental Specifications. <br /> o The AECOM Team will incorporate any specs required for the sanitary sewer relocation <br /> (east leg of Faries Parkway) <br /> o The AECOM Team will coordinate with the City of Decatur to update the Status of Utilities <br /> section in the specifications.This is needed because utility relocations have occurred <br /> following the January 2022 letting,which need to be reflected in the specifications. <br /> 6 Supplement 2 05/09/2023 <br />