Three Standards are combined in a single volume to provide guidance for the design, installation, operation, and maintenance of urban stormwater systems. ASCE/EWRI 45-05 provides guidelines for the design of urban stormwater systems, covering topics such as site analysis, system configuration, hydrology, hydraulic design, nonstructural considerations, structural design, and materials. ASCE/EWRI 46-05 presents guidelines for the installation of urban stormwater systems and discusses subjects such as contract documents, preconstruction site inspection, construction, and inspection. ASCE/EWRI 47-05 provides guidelines for the operation and maintenance of urban stormwater systems, including operation and maintenance plans, water quality, periodic inspection, and maintenance.

These Standards are intended to complement design procedures in ASCE Manual 77, Design and Construction of Urban Stormwater Management Systems.