DDG’s water resources team delivers stormwater, drainage, and flood‑risk solutions that perform in real‑world conditions. Our expertise in hydrology and hydraulics comes from decades of site development experience and long‑standing partnerships with local municipalities on flood‑risk assessments and regional drainage improvements. From retrofitting neighborhood drainage systems to designing regional detention facilities, improving major waterways, and modeling complete drainage networks for thousands of acres—we’ve done it all. Using advanced modeling tools like HEC‑HMS, HEC‑RAS, SWMM, PCSWMM, SSA, Hydraflow, ICPR, PondPack, and HY‑8, we identify the true causes of flooding and deliver practical, effective solutions that protect property and strengthen community resilience.
HYDROLOGY + HYDRAULICS ENGINEERING
DDG is well-versed in both steady and unsteady hydraulic modeling for conveyance analysis and floodplain mapping. We routinely use public domain and proprietary models including HEC-HMS, HEC-RAS, SWMM, ICPR, PondPack, Storm and Sanitary Analysis, HY-8, and others for routine conveyance/storage analysis and drainage design. DDG can support development of both 1D and 2D HEC-RAS models, as well as other multi-dimensional hydrodynamic models such as MIKE-FLOOD, DELFT3D, and AdH.
GIS & GEOSPATIAL TECHNOLOGY
At DDG, our GIS and geospatial technology experts have seen and done it all from desktop due diligence to on-site around-the-clock data collection to rapidly deploying offline assessment solutions. Our seamless approach has provided for drone operations to capture roof repair work for developing architectural drawings and collecting street light locations for municipal utility audits. Whatever the project needs, DDG GIS and geospatial technology experts are there to deliver time- and cost-effective methods and solutions. Available GIS + Geospatial Technology Services: Customized Mobile Field Data Collection, Public Engagement Web Applications, Enterprise Geodatabase Administration + Development, Public & Individual Assistance Damage Assessment Tools, Multi-spectral Data Processing & Analysis, CAD—GIS Integration Support, Client Care and Customer Support, Small-Scale Aerial Mapping, Permit Map Packages, Digital-Twinning Infrastructure, Small-Unmanned Aerial Vehicles, Digital Cartography, Reporting Dashboards, and Agile GIS Application Development & Operations.
