O'Brien Engineering, Inc. (OEI) is a consulting civil engineering firm in Dallas, Texas. The Veteran Owned Small Business (VOSB) provides specialization in hydraulics and hydrology, floodplain management, dam safety evaluations and dam breach analyses, and regulatory permitting.

Established nearly a quarter century ago in 1987,our commitment is to provide the highest possible quality of service in an honest, ethical, cost-effective, and timely manner. We are dedicated to serving our clients.