When should the special inspector notify the designer or engineer of record?

The special inspector should notify the designer or engineer of record when encroachments or deviations from the approved construction documents are found because this communication is crucial for maintaining compliance with the project's design intent and safety standards. Prompt notification allows the engineer or designer to assess the impact of these deviations on the overall project and to determine whether corrective actions are necessary. This notification supports proactive problem-solving and ensures that any issues are addressed in a timely manner, which is vital in the construction process.

This approach aligns with the purpose of special inspections, which is to verify that construction adheres to the approved plans and specifications. By informing the designer or engineer of record immediately upon identification of such issues, the special inspector plays a key role in upholding the integrity of the project. Regular intervals of communication or notifications right before scheduled inspections can be useful, but they do not hold the same level of urgency and importance as immediately notifying the principal stakeholders about significant deviations or encroachments.