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DSS Skills Development Center Smith Sinnett / 2020045 <br />Chapel Hill, North Carolina Orange County <br /> <br />CONSTRUCTION PROGRESS DOCUMENTATION 01 32 00 - 5 <br />2.4 CONTRACTOR'S CONSTRUCTION SCHEDULE (GANTT CHART) <br />A. Gantt-Chart Schedule: Submit a comprehensive, fully developed, horizontal Gantt-chart-type, <br />Contractor's Construction Schedule within [30] days of date established for the Notice to Proceed. Base <br />schedule on the Preliminary Construction Schedule and whatever updating, and feedback was received <br />since the start of Project. <br />B. Preparation: Indicate each significant construction activity separately. Identify first workday of each <br />week with a continuous vertical line. <br />1. For construction activities that require 3 months or longer to complete, indicate an estimated <br />completion percentage in 10 percent increments within time bar. <br />2.5 CONTRACTOR'S CONSTRUCTION SCHEDULE (CPM SCHEDULE) <br />A. General: Prepare network diagrams using AON (activity-on-node) format. <br />B. Preliminary Network Diagram: Submit diagram within 14 days of date established for the Notice to <br />Proceed. Outline significant construction activities for the first 60 days of construction. Include skeleton <br />diagram for the remainder of the Work and a cash requirement prediction based on indicated activities. <br />C. CPM Schedule: Prepare Contractor's Construction Schedule using a computerized, time-scaled CPM <br />network analysis diagram for the Work. <br />1. Develop network diagram in sufficient time to submit CPM schedule so it can be accepted for use <br />no later than 30 days after date established for the Notice to Proceed. <br />a. Failure to include any work item required for performance of this Contract shall not excuse <br />Contractor from completing all work within applicable completion dates, regardless of <br />Architect's approval of the schedule. <br />2. Conduct educational workshops to train and inform key Project personnel, including <br />subcontractors' personnel, in proper methods of providing data and using CPM schedule <br />information. <br />3. Establish procedures for monitoring and updating CPM schedule and for reporting progress. <br />Coordinate procedures with progress meeting and payment request dates. <br />4. Use "one workday" as the unit of time. Include list of nonworking days and holidays incorporated <br />into the schedule. <br />D. CPM Schedule Preparation: Prepare a list of all activities required to complete the Work. Using the <br />preliminary network diagram, prepare a skeleton network to identify probable critical paths. <br />1. Activities: Indicate the estimated time duration, sequence requirements, and relationship of each <br />activity in relation to other activities. Include estimated time frames for the following activities: <br />a. Preparation and processing of submittals. <br />b. Mobilization and demobilization. <br />c. Purchase of materials. <br />d. Delivery. <br />e. Fabrication. <br />f. Utility interruptions. <br />g. Installation. <br />h. Work by Owner that may affect or be affected by Contractor's activities. <br />i. Testing. <br />2. Critical Path Activities: Identify critical path activities, including those for interim completion <br />dates. Scheduled start and completion dates shall be consistent with Contract milestone dates. <br />3. Processing: Process data to produce output data on a computer-drawn, time-scaled network. <br />Revise data, reorganize activity sequences, and reproduce as often as necessary to produce the <br />CPM schedule within the limitations of the Contract Time. <br />4. Format: Mark the critical path. Locate the critical path near center of network; locate paths with <br />most float near the edges. <br />a. Subnetworks on separate sheets are permissible for activities clearly off the critical path. <br />E. Initial Issue of Schedule: Prepare initial network diagram from a list of straight "early start-total float" <br />sort. Identify critical activities. Prepare tabulated reports showing the following: <br />1. Contractor or subcontractor and the Work or activity. <br />DocuSign Envelope ID: ECCAC5A0-6CC8-4B37-8AD3-89D69F0AE1AE