Dear Contractor, Here is a List of Common Scheduling Mistakes

Many delay, disruption, and loss of productivity claims are lost or substantially reduced in value because mistakes, errors and carelessness are reflected in the original schedule and plan of operations. The original schedule is often the first piece of documentation that the owner receives demonstrating the contractor’s professionalism in planning and management.

Contractors should pay great attention to the scheduling process and avoid many of the common mistakes that can lead to a loss of credibility on the project. It is impossible to list all of the possible initial scheduling mistakes, but the following is a list of defects in the initial schedule that some courts and boards of contract appeals have noted:

  • No proof of the information used to prepare schedule
  • Errors in technical logic
  • Incomplete schedules
  • Overlooking procurement of critical materials
  • Failure to consider physical restraints
  • Failure to consider weather restraints
  • Failure to consider resources
  • Failure to consider the economics of the sequencing
  • Failure to consider uncertainty and risk in establishing durations
  • Schedule does not “tie in” to the anticipated means and methods and/or estimate
  • Logic intentionally deviates from the manner in which the contractor intends to build
  • Elimination of float by increasing durations
  • Unrealistic productivity or durations
  • The schedule submitted to the owner was not used to build the project

Again, the schedule can often set the tone for the job. In court, it is the document that establishes the benchmark of all time related claims. As such, it has a tremendous impact on the judge and jury and influences the credibility they will attach to the evidence that follows.

Image: USACE Europe

How to Deal with the "Ripple Effect" or "Cumulative Impact" of Change Orders

Last week was crazy for me!  Not only did I have more meetings than one could fit in the work week, but we had to find alternative overnight plans for our six children for an out-of-town law firm event.  Just like a construction project, we had to deal with the "ripple effect" of many changes to our plans.

Attorney coach and former construction lawyer Cordell Parvin wrote about the "ripple effect" of change orders many years ago.  Changes, differing site conditions and delays frequently occur on complex highway and bridge construction projects.  Whether the owner is a federal agency, state government or local municipality, contractors are regularly asked to perform the "additional work" or "remedy the differing site condition" during the construction project.  If there is not enough time for the contractor to prepare a change order with proposed costs, the contractor may be required to perform the work on a force-account basis.

The "ripple effect" or "cumulative impact" of changes in the work, delays, and differing site conditions require the contractor to document work activities, as well as money spent for the additional work.  In this instance, the contractor should also be focused on recovering compensation for the "impact" that the change, delay or differing site condition had on the original scope of work. 

In the California case discussed in Cordell's article, State v. Guy F. Atkinson, the Owner DOT contracted with the Contractor to build 1.6 mile long section of Highway 101. Various problems arose during the project relating to wet soil conditions, which ultimately prohibited construction as specified under the bid plans. Over the course of the project, state engineers ordered numerous changes.

The Contractor initially signed the change orders, which allowed for additional compensation on a unit price basis.  The Contractor later refused to sign the proposed change orders because its entire project schedule was disrupted and delayed.  Ultimately, the Contractor submitted a claim for $1.5 million in additional compensation for the cumulative impact of the changes. 

The dispute was subject to mandatory arbitration, which resulted in a decision in favor of the Contractor.  The Arbitrator awarded the Contractor 65% of its claimed damages, finding that "[t]here were cumulative effects of all of the ordered changes. It is not feasible or possible to separately identify or measure those costs which were incurred by Atkinson as a result of the actions by the state." 

The award was confirmed at the trial court level, as well as on appeal.  The appellate court noted that the changes ordered by the State were major, ongoing and seriously impacted the entire project in terms of efficient use of labor, machinery and planning ability. The appellate court held:

The entire operation was disrupted by the ongoing piecemeal changes ordered by the state. The suggestion that only a small amount of the total embankment fill was actually replaced by other materials fails to recognize these massive '"ripple effects.'"

As noted by the court, in most complex cases it is "humanly impossible to trace, find and specify in detail, and quantify in effect the numerous circumstances [that] cause or contribute to financial consequences."

Just like a weekend away from six children requires advanced scheduling and back-up contingency plans, the best way for contractors to deal with changes, delays and differing site conditions is to prepare for the "ripple effect" or "cumulative impact."   Consider the time and productivity impacts of changes on the unchanged work when pricing changes.  With proper planning and scheduling, the impact can be estimated and predicted. This can minimize the uncertainty of change.

Image: Robert Hurzek

 
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