By: Fritz T. Marth, PE, CFCC & Akash Ketkale, CMIT
February 5, 2026
In today’s complex construction claims environment, determining responsibility for project delays is rarely straightforward. Owners and contractors alike often face disputes where multiple delays overlap, raising a critical question: when is a delay truly concurrent, and when is it not? The distinction can significantly impact entitlement to time extensions and delay damages.
In the latest GREYHAWK white paper, Is It or Is It Not Concurrent Delay?, GREYHAWK’s Fritz T. Marth, PE, CFCC, and Akash Ketkale, CMIT examine how concurrent delay is defined, analyzed, and applied in construction claims. Drawing on industry-recognized definitions, practical critical path scheduling examples, and common analytical challenges, the paper explores why delays that initially appear concurrent often require deeper investigation. By emphasizing causation, critical path impacts, and the importance of comprehensive project documentation, this analysis provides valuable insight into how concurrent delay claims can be properly substantiated—or effectively refuted.

