Rev. 7-1-95

CRITICAL PATH METHOD SCHEDULING

108-C-108

The Standard Specifications are revised as follows:

SECTION 108, AFTER LINE 436, INSERT AS FOLLOWS:

108.07.1 Critical Path Method Scheduling. The construction of the work shall be planned and recorded with a critical path method schedule. The critical path method schedule shall be that as developed by the Associated General Contractors of America, or another approved schedule. Such schedule shall be used for coordination and monitoring of all work.

The Contractor shall prepare the initial critical path method schedule in the form of an activity on arrow diagram.

(a) Preparation of Initial Critical Path Method Schedule. The Contractor shall submit two copies of the initial critical path method schedule within 30 calendar days after the contract award date. Within seven days after the notice to proceed is issued, the Engineer and the Contractor shall meet for joint review, correction, and possible adjustment of the schedule. The construction time, as determined by the schedule, for the work shall not extend beyond the original contract completion time.

Within 15 calendar days of such meeting, if changes in the logic or time estimates occur, another submission of two copies of the revised schedule shall be made. The schedule shall be finalized within 30 days after the notice to proceed. Failure to finalize the schedule by that date will result in withholding all contract payments until the schedule is provided.

(b) Schedule Requirements. All activity on arrow diagrams provided by the Contractor shall include activity nodes, activity description, activity duration, and anticipated equipment requirements.

The activity on arrow diagram shall show the sequence and interdependence of all activities required for complete performance of all work including shop drawing submittals, approvals, fabrication, and delivery activities. All network dummies shall be shown on the diagram.

No activity duration shall be longer than 20 work days without approval.

The activities shall be described so that the work is readily identifiable. The progress on each activity shall be readily measurable. For each activity, the Contractor shall identify the trade or subcontractor performing the work, the duration of the activity in work days, and the location of the work.

The Contractor shall also provide the numbers of work days per week, holidays, shifts per day, hours per shift, and major equipment to be used.

All activity on arrow diagrams submitted by the Contractor may either be hand drawn or computer plotted. Regardless of the type of diagram, the network shall be legible, readable, and understandable. The network diagram shall be on 24 inches by 36 inches (610 mm by 915 mm) sheets.

(c) Schedule Updates and Progress Payments. Progress meetings will be held monthly by the Engineer and the Contractor for the purpose of updating the critical path method schedule. Progress will be reviewed to verify finish dates of completed activities, remaining duration of uncompleted activities, and proposed logic or time estimate revisions. The Contractor shall provide the status of activities at the progress meetings. The process schedule updates shall be based on this information once it has been verified.

Each month, the Contractor shall submit two copies of an updated critical path method schedule which illustrates verified progress. The Contractor shall also submit two copies of a written narrative which includes the information as follows:

1. Delay in completion of a critical activity

2. Actual prosecution of the work which is determined to be significantly different than that represented on the schedule

3. The addition, deletion, or revision of activities required by contract modification

4. All logic revisions. The contract completion time will be adjusted only for causes specified in the contract.

If the Contractor seeks a time extension, documentation as required shall be furnished to enable the Engineer to determine whether an extension is appropriate.

Float shall be understood to be a shared commodity.

The costs of preparing the critical path method schedule shall be included in the costs of other pay items, along with other costs related to these requirements including prephase site construction meetings or progress meetings.