The Concurrent Delay Trap:
How Unresolved Extension of Time (EOT) Claims Are Killing EPC Project Margins
In the high-stakes arena of international Engineering, Procurement, and Construction (EPC) projects, time is quite literally money. With cross-border supply chains facing unprecedented volatility, material shortages fluctuating, and regulatory approvals tightening across Europe, project schedules are being pushed to their absolute limits.
But when a major infrastructure project falls behind schedule, a silent legal killer often emerges from the contractual fine print: Concurrent Delay.
For Project Directors, Commercial Managers, and Contract Administrators, mishandling a concurrent delay claim is the fastest way to turn a high-performing project into a multi-million-euro financial disaster. Here is a deep dive into why this trend is trapping contractors, and how your team can navigate it before the dispute letter arrives.
What is Concurrent Delay (And Why is it Weaponized?)
At its core, a concurrent delay occurs when two or more independent delay events happen at the same time, and both have an impact on the project’s critical path. Crucially, one of these delays is typically caused by the Employer/Owner (an excusable delay), while the other is caused by the Contractor (a non-excusable delay).
Imagine this scenario on a major infrastructure asset:
The Employer fails to hand over critical engineering drawings on time (Employer Delay).
Simultaneously, the Contractor’s heavy machinery breaks down, halting progress on the very same critical path (Contractor Delay).
When the project timeline slips by 30 days, who bears the cost?
In a volatile market, project owners increasingly weaponize these overlapping timelines. They use the contractor’s internal setbacks to completely reject claims for an Extension of Time (EOT). By denying the EOT, the owner effectively shifts the entire financial burden onto the contractor, opening the door for devastating Liquidated Damages (LDs).
The Operational Consequences: Margin Erosion and Uninsured Exposure
When an EPC contractor is caught in a concurrent delay dispute without a watertight strategy, the consequences hit the balance sheet in two distinct ways:
1. The Loss of Prolongation Costs
Under standard international legal frameworks (such as English Common Law or standard FIDIC principles), if a delay is truly concurrent, the contractor may be granted an extension of time to avoid being hit with Liquidated Damages. However, they are rarely awarded prolongation costs (the expense of keeping a site open, staff on standby, and equipment leased for an extra month). The contractor must absorb these massive overheads out of pocket, completely eroding their original profit margins.
2. Acceleration Pitfalls
Fearing crippling Liquidated Damages, project managers often make the panicked decision to “constructively accelerate”, pouring extra labor, night shifts, and un-budgeted resources into the project to force it back on schedule. If the concurrent delay framework hasn’t been established legally, the contractor will find it nearly impossible to recover these acceleration expenses from the owner later on.
How to Defend Your Project: The Power of the Baseline Program
To survive a concurrent delay audit, your project team cannot rely on guesswork, emails, or informal site diaries. They must treat schedule management as a formal legal defense.
The Baseline Program is Your Shield: Everything hinges on the initial baseline program. Contractors must ensure their baseline logic, critical paths, and activity relationships are fully validated and reviewed by the Engineer at the contract formation stage.
Regulatory-Grade Record Keeping: To isolate an Employer-caused delay from a Contractor-caused delay, your planning engineers must document site events with absolute chronological precision. If you cannot prove exactly when an impact hit the critical path, an arbitrator will default to the owner’s narrative.
Stop Inheriting Contractual Risk: Align Your Team
The reality of modern EPC management is that technical teams build the project, but commercial teams protect the money. If your Project Managers, Scheduling Engineers, and Legal Counsel are operating in silos, your firm is exposed to catastrophic concurrent delay traps.
To eliminate this vulnerability, your core execution team needs to move past basic “non-legalese” assumptions and master the actual mechanics of global contract law.
Are your current project leads equipped to isolate concurrent delays, validate baseline schedules, and secure your margins?
Don’t wait for a dispute to find out. Secure your team’s competitive edge at the upcoming International EPC Contracts Masterclass (September 21-22). Led by Manoj Nair, a seasoned Solicitor of the Supreme Court of England & Wales with 25+ years of cross-border experience, this live executive program dedicates specialized modules entirely to Delay, EOT Entitlement, and Defects Liability.
Seats are strictly limited to maintain an elite, interactive learning environment, and corporate passes are allocated on a first-come, first-served basis.
About WLCUS:
WLCUS is the world’s premier organizer of strategic HSE summits. We partner with organizations like IIRSM, NEBOSH, and the Krause Bell Group to turn academic research into operational reality.
Contact for Group Bookings: booking@wlcus.com | +36 30 828 2239