This work reports two easily implementable, four-step procedures respectively to estimate corrosion
potentials and rates in coating-disbonded regions based on measurable soil chemistry, lab-measured pipe
steel open circuit potential (OCP) and corrosion rates in deaerated soil ground water and the CP
potential near a holiday. This avoids the need for excavation, except as a confirmatory measure, while
allows for the corrosion condition in a disbondment to be evaluated. This method can be used to
estimate conservative but more realistic corrosion rates in the disbonded region. The corrosion rates thus
obtained can be used to prioritize susceptible corrosion locations for excavation and determine more
confidently reassessment interval. These simple procedures are not applicable for use to estimating
growth rates of pits or cracks if they are present in the disbonded region.