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Our purpose is to provide an easy-to-use on-line form and related tools for stakeholders to share essential detail about underground damage or near-miss incidents for use in determining root causes, which will be evaluated and used to focus and promote underground damage prevention education and training efforts.

About CGA

The Common Ground Alliance (CGA) is a non-profit organization dedicated to promoting shared responsibility in damage prevention. Representing individuals from 15 stakeholder groups and over 150 member organizations, the CGA works cooperatively with all interested stakeholders to identify and implement effective measures to protect the underground infrastructure during excavation activity.

2014 Annual Report

In support of the national 811 day, CGA has released the 2014 DIRT report on August 11th, 2015. Please visit to download the report or supplementary data.