Hydrologic and Hydraulic (H&H) Studies

ORS is currently undertaking three drainage studies, commonly referred to as Hydrologic and Hydraulic (H&H) Studies. 










The aim of these studies is to develop a comprehensive conceptual design focusing on feasible, high-quality, fair, and cost-effective solutions for the project area. These studies delineate specific watersheds within a pump station basin, enabling a more detailed analysis of the neighborhood. Each individual H&H study will evaluate the existing drainage infrastructure, including both major and minor systems, as well as planned stormwater management and green infrastructure projects. These studies will integrate the most up-to-date and readily available data relevant to the study area, including surveys of major drainage structures, roadway data, previously constructed drainage improvements, and planned enhancements. This will facilitate a deeper understanding of problem areas and hotspots within the project area's drainage basin and to further assess the drainage system's needs following the completion of existing programs.

The study encompasses a survey of major drainage structures (over 36 inches), updates and enhancements to the City's existing PCSWMM model of the area, conceptual design of prosed improvements, and development of a prioritized list of drainage improvements. This includes a range of both green infrastructure (GI) measures and gray infrastructure improvements aimed at reducing flood risk and enhancing drainage system performance. The study aligns with the
City's Living with Water Plan and Greater New Orleans Urban Water Plan by transitioning from broad concepts to specific recommendations for siting, designing, and prioritizing GI measures and drainage improvements that enhance community resilience.
Each study will culminate in a series of proposed projects identifying comprehensive capacity improvements and blue/green solutions applicable at the neighborhood level. Recommendations will incorporate a mix of gray infrastructure, green infrastructure, or a combination of both, accompanied by an estimate of probable costs and maintenance expenses.

Further areas of study are currently in development.