Scheduling

What is a progress schedule in construction?

A progress schedule is the working construction schedule that shows planned and actual progress, updated regularly so everyone can see whether the job is on track for its completion date.

Two construction professionals review paper plans beside a tablet at a jobsite workbench.
Plan reviews connect field conditions, drawings, and the next decisions on a job. AI-generated illustration.

A progress schedule is the schedule you actually run the job on. It starts from the baseline schedule and gets updated, usually monthly and often weekly, with actual start and finish dates, percent complete, and revised forecasts. Comparing it to the baseline shows whether the job is ahead or behind and which activities are driving the finish date.

Many contracts require the contractor to submit a progress schedule and keep it current. Owners often tie it to payment, and in a dispute it is the main evidence of what delayed the job.

What federal contracts require

On federal construction work, FAR 52.236-15, Schedules for Construction Contracts, requires the contractor to submit a schedule within five days after work begins, or within another time the contracting officer sets. It must be a progress chart of suitable scale showing the percentage of work scheduled to be complete by any given date. If the contractor fails to submit it, the contracting officer may withhold approval of progress payments until it does. Many agencies add more detailed scheduling specs, such as critical path method requirements, so read the whole specification.

How it works on a real job

Say a GC is two months into a $3.2 million fire station. The baseline shows the roof dried in by week 14. At the month-end update, the superintendent records actual dates: steel erection finished four days late because of a crane breakdown, and the roof deck started on time anyway because the decking crew resequenced.

The scheduler updates the logic, and the forecast dry-in date is now week 15. That one-week slip eats the float on the interior rough-in path. The PM flags it at the owner meeting, adds Saturday shifts for the framing sub, and shows the owner how the next update will recover the week. Meanwhile, the update also shows that a late owner decision on the apparatus bay doors is approaching the critical path, so the PM sends written notice now, not after it bites.

Notice what the update did. It did not just report a late date. It showed cause, impact on the critical path, a recovery step, and an early warning about an owner-caused risk. That is the difference between a schedule that is filed and a schedule that is used.

What a good update includes

  • A data date (the as-of date for the update).
  • Actual start and finish dates and remaining durations for activities in progress.
  • Logic changes, explained in a short narrative.
  • The current critical path and remaining float.
  • A comparison to the baseline at key milestones.
  • Delays and their causes, with references to notices sent.

Common mistakes

  1. Updating percent complete but not dates, so the forecast never moves.
  2. Changing logic quietly to hide delays. Owners and experts compare versions.
  3. Skipping the narrative. A schedule without explanation invites the worst interpretation.
  4. Letting the update fall behind the pay application, when the contract ties them together.

Related terms

See preliminary schedule, recovery schedule, look-ahead schedule, and critical path method. For the routine, read how to update a construction schedule every week.

Frequently asked questions

How often should a progress schedule be updated?

At least as often as the contract requires, commonly monthly with each pay application. Many superintendents update weekly for their own use.

What is the difference between a baseline and a progress schedule?

The baseline is the approved plan, frozen as a reference. The progress schedule is the updated version showing actual dates and new forecasts. The gap between them shows delay.

Can an owner withhold payment for a missing schedule?

Often yes, if the contract says so. On federal work, FAR 52.236-15 lets the contracting officer withhold approval of progress payments until the required schedule is submitted.

Does a progress schedule have to be CPM?

Not always. The basic federal clause calls for a progress chart, but many specifications require a critical path method schedule. Follow the contract.

Sources

  1. Acquisition.gov: FAR 52.236-15, Schedules for Construction Contracts
Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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