Drainage design, stormwater management, flooding investigations, culverts, erosion control, and corrective engineering for existing and proposed conditions.
DRJ works on both new drainage systems and existing flooding problems. The first task is often not designing a pipe or basin. It is figuring out why the water is behaving the way it is.
Evaluate topography, drainage paths, structures, obstructions, downstream constraints, and contributing runoff.
Coordinate grading, collection systems, storage, discharge, erosion control, and regulatory requirements.
Address swales, yard drainage, roadway runoff, wall drainage, utility conflicts, and construction-related issues.
Observed flow paths, grades, outlet conditions, maintenance, debris, settlement, and how the site actually gets built can control performance just as much as the calculation.
Then solve the hydraulics, grading, structures, and construction details around it.
