Direct access to our engineering team for project-specific questions, model troubleshooting, or field data inquiries.
Common questions about drainage design standards, survey accuracy, and project scoping are compiled in our FAQ.
View FAQCommon inquiries about our stormwater and drainage engineering services.
Runoff modeling uses historical rainfall data and terrain characteristics to predict where and how much water will flow during a storm. Drainage design then applies that data to size pipes, trenches, and outlets. We handle both phases, ensuring the infrastructure matches the actual hydrology of your site.
These networks rely on a carefully calculated downward slope. Water flows by gravity into a series of trenches filled with permeable aggregate, where it infiltrates into the ground or is conveyed to a safe discharge point. The slope ensures self-cleaning velocities, so debris doesn't clog the system.
Using high-precision optical total stations, we achieve sub-centimeter vertical accuracy on most projects. This level of detail is critical for identifying subtle grade changes that could cause backflow or ponding. We also provide raw survey data and processed contour maps for your engineering team.
We serve both. For a single home, we might model runoff from a new driveway and design a small trench drain. For a subdivision, we handle the full watershed analysis and network of detention basins. Every project gets the same attention to hydraulic detail.
A straightforward residential lot can be modeled in one to two weeks. Larger watershed studies for commercial or municipal sites typically take four to eight weeks, depending on data availability and the complexity of the drainage network. We provide a timeline estimate after reviewing your site plans.
From initial site assessment to final as-built documentation, our process is built around precision and accountability.
We visit the site to identify drainage patterns, existing infrastructure, and potential obstructions. This walk-through sets the baseline for all modeling work.
Using optical total stations, we capture sub-centimeter elevation data across the project area. Control points are established for long-term reference.
We apply SCS curve number methods and 2D hydraulic models to simulate storm events. Calibration uses local rain gauge records for realistic predictions.
Gravity-fed trench alignments are calculated to maintain self-cleaning velocities. We size aggregate layers and catch basins based on peak flow rates.
During installation, we provide staking, grade checks, and real-time adjustments. Field engineers verify trench slopes and outlet elevations on site.
Final survey data is compiled into a record drawing showing all installed drainage elements, invert elevations, and connection points for future maintenance.