This state-of-the-art report presents methods of identifying corrosion in power and communications manholes and identifies methods used to mitigate the effects of corrosion within the confines of the manhole. People involved with the responsibility of providing corrosion control in power and communications manholes are typically aware of bonding and grounding systems and conduct their work in compliance with the specifications set forth by the National Electrical Safety Code (NESC) and state and local electric safety codes.