Managing Stormwater Efficiently & Sustainably

With in-depth understanding of the complexities of stormwater management, our team of hydrology and hydraulics experts develop smart solutions for communities, airports and public spaces. Starting with research and risk assessment, we collaborate with our clients—and each other—to plan, develop, implement and oversee successful infrastructure that mitigates pollution, floods and costly repairs. We draw on our decades of hands-on experience to carry out these updates with minimal disruption to your community’s water quality or land development plans.

Portland International Airport (PDX) - Deicer Management System
17th Street and London Avenue Canal Temporary Pump Stations
ACRP Report 166: Interpreting the Results of Airport Water Monitoring
Queen City Avenue Sewer Separation – Lick Run Watershed
Cincinnati/Northern Kentucky International (CVG) - Airport Stormwater Deicing System Expansion


We provide creative solutions through a well-rounded set of expertise that considers the entire water system.


“PVD’s state-of-the-art deicer management system allows aircraft to remain at the gate for deicing in wintertime while protecting our nearby environment and streams.”

Peter Fraizer, Interim President and CEO, Rhode Island Airport Corporation

“ is truly remarkable how you all were able to completely shift gears on day 1 with the modeling re-design and still keep the critical path for materials procurement and construction moving forward.  To not have one claim from our construction subcontractors for delays is a miracle you helped us with.  We cannot thank you and your team enough for that.”

Matthew Beatty, Vice President Mid-Atlantic Division, Project Manager, Weston Solutions, Inc.

“Gresham Smith has done an outstanding job performing the complex technical and design analyses required for the PDX deicing project. I have been consistently impressed both by the quality of their work and by their responsiveness. In addition, they work well with our airline partners, which has been a significant benefit.”

Susan Aha, Deicing Program Manager, Port of Portland