How Concurrent Delay Is Evaluated When Both Parties Share Responsibility

Concurrent delays require careful separation; contact HPM Consultants for clarity
Dr Hendrik Prinsloo is an expert witness and specialist in the analysis construction delay claims

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Construction delays rarely stay isolated to a single cause. When an owner-caused delay and a contractor-caused delay happen at the same time, working out who owes what requires concurrent delay analysis, not a simple count of days. A Los Angeles construction delay expert witness deals with this exact scenario regularly, since overlapping delays are far more common on active, multi-trade projects than most owners expect. The stakes are significant, since misreading a concurrent event can shift responsibility and cost entirely to the wrong party.

What Concurrent Delay Actually Means

Concurrent delay occurs when two independent delay events, one caused by each party, affect the critical path during the same window of time. Untangling this requires the same rigor found in AACE International guidance, since a proper construction delay analysis has to isolate each event before assigning responsibility to either side. Treating the two events as a single combined delay almost always produces the wrong answer, since it hides which party actually controlled the outcome during that overlapping period. Even experienced project teams sometimes assume concurrency automatically cancels out entitlement, which is rarely how contracts or tribunals actually treat it.

Why Shared Responsibility Complicates the Picture

When both parties contributed to the same lost time, the contract language and the specific jurisdiction often determine how entitlement is split. Concurrent delay analysis exists precisely because fairness rarely means an automatic fifty-fifty split, and getting the split wrong can cost either side significantly more than the delay itself. Some contracts deny time extensions entirely during concurrent periods, while others allow time without additional compensation, which makes reading the governing language just as important as the schedule review itself.

 Clear schedule review separates fact from assumption; contact HPM Consultants
Clear schedule review separates fact from assumption; contact HPM Consultants

Separating the Two Delay Events

The first step in any concurrent delay review is tracing the critical path through each schedule update to confirm which activities were actually driving completion during the disputed window. A careful construction disruption analysis often runs alongside this step, since disruption and delay frequently travel together but need to be measured separately to hold up under review. Skipping this separation is one of the most common reasons an otherwise reasonable claim gets challenged successfully by the opposing side.

When Negotiation Isn’t Enough

It is worth hiring a delay expert witness in Los Angeles as soon as a dispute involves more than one plausible cause for the same lost time, since that is exactly when informal conversation tends to break down. Formal mediation and arbitration processes rely heavily on a credible, independent analysis to move the conversation forward once both sides have staked out a position. Waiting until a formal proceeding is already scheduled often means starting the technical review under significant time pressure, which rarely produces the strongest possible result.

Why Consulting Support Matters Early

Bringing in delay analysis consulting before positions harden gives both sides a chance to agree on the facts before they disagree on the conclusion. Learning more about our team’s background shows why experience with exactly this kind of overlapping dispute tends to produce faster, more durable resolutions. A consultant who has already handled dozens of similar concurrent delay scenarios recognizes patterns that a first-time reviewer would likely miss entirely.

HPM Consultants helps separate fact from assumption in every overlapping delay
HPM Consultants helps separate fact from assumption in every overlapping delay

How Damages Get Assessed When Delays Overlap

Delay damages on Los Angeles construction projects are assessed once the concurrent events are separated, since damages are calculated only for the portion of delay each party is actually responsible for, never for the full overlapping period. Getting this right depends entirely on the quality of the underlying concurrent delay analysis performed before any dollar figure is discussed. Extended overhead, standby costs, and lost productivity all need to be traced back to the specific portion of the delay that survives this separation, not the dispute as a whole.

The Scheduling Expert’s Role

A scheduling expert is important in Los Angeles construction disputes because concurrent delay claims depend entirely on schedule logic holding up under direct challenge. PMI’s own research on construction communication echoes the same point: clarity in how findings are presented often matters as much as the technical analysis behind them. A scheduling expert who can defend every assumption behind the critical path, and explain it clearly to a non-technical audience, holds a real advantage once cross-examination begins.

Frequently Asked Questions

When should I hire a delay expert witness in Los Angeles?

As soon as a dispute involves more than one plausible cause for the same lost time, since that is exactly when informal negotiation tends to break down without independent support.

How are delay damages assessed on Los Angeles construction projects?

Damages are calculated only for the portion of delay each party is actually responsible for, once concurrent events have been separated through careful schedule analysis.

Why is a scheduling expert important in Los Angeles construction disputes?

Because concurrent delay claims depend entirely on schedule logic holding up under direct challenge, and a scheduling expert is who builds and defends that logic.

Can both parties be right in a concurrent delay dispute?

In a sense, yes. Both parties can have genuinely caused separate delays during the same window of time, which is exactly why the analysis has to isolate each event rather than assume only one side is responsible.

Does concurrent delay always split entitlement evenly?

No. An even split is rare. The actual outcome depends on the contract language and the specific facts of each overlapping event, not a default assumption of fifty-fifty responsibility.

Get Clarity on Concurrent Delay with HPM Consultants

HPM Consultants helps owners and contractors work through concurrent delay analysis with the discipline these disputes demand. Our team includes a respected Los Angeles delay damages expert, experienced in separating overlapping events into conclusions that hold up under real scrutiny, whether the matter settles informally or proceeds all the way through litigation.

Contact us today to get an independent, evidence-based read on your next concurrent delay dispute.