Oates Associates Welcomes Julian Chastain

COLLINSVILLE (July 29, 2025) – Oates Associates is pleased to announce the addition of Julian Chastain, PE to the team. With nine years of experience in sanitary sewer and stormwater drainage design, he brings a strong technical background with a commitment to enhancing local communities through thoughtful infrastructure solutions.

Julian’s experience includes extensive work with hydraulic modeling tools and drainage systems. He brings valuable insight from a previous role with the Metropolitan St. Louis Sewer District (MSD), where he developed a deep understanding of regional challenges and opportunities for innovation.

With a local focus, Oates Associates looks forward to Julian collaborating with the team on projects that make a meaningful impact across the communities the firm serves.

Now in its 45th year, Oates Associates is a 100% employee-owned multi-disciplined design firm with offices in Collinsville and Belleville, Illinois and St. Louis and St. Charles, Missouri. Oates provides engineering and surveying services for transportation and building projects. Specifically, this includes transportation and traffic engineering, ADA transition planning, stormwater management, site design, building and bridge structural design and inspections, surveying and drone operations. For more information, visit www.oatesassociates.com or call 618.345.2200.