Development of Guidelines for Managing Stormwater Pipe Assets—Utility Perspective Case Study Approach: Fid-Bau Portal

Development of Guidelines for Managing Stormwater Pipe Assets—Utility Perspective Case Study Approach

Kandasamy, Vivek Prasad Velayutham / Sinha, Sunil K.

Growing urban landscapes, changing climatic patterns, devastating floods, detrimental pollutant discharges, coupled with aging stormwater infrastructure have multiplied the complexity of managing stormwater. Conventionally, stormwater was managed through gray infrastructure–networks of linear engineered structures. Recently, many cities across the U.S. have embraced the emerging concept of green infrastructure; to use land as a natural drainage system. Though the adoption and implementation of green infrastructure will not solely solve this issue, it will supplement and reduce the burden on the existing gray infrastructure. Therefore, specific attention to issues regarding gray infrastructure is of prime importance, as its performance will have a significant influence on the effectiveness of the stormwater system as a whole. This paper will synthesize the stormwater industry practices and provide guidelines for the following areas; inspection technologies, condition rating systems, risk assessment and prioritization, and renewal engineering techniques through case studies. These case studies were developed with inputs from the participating utilities; geographically spread across the U.S. EPA regions. Participating utilities are Sanitary District 1, KY; City of San Diego, CA; Gwinnett County, GA; Virginia Beach, VA; City of Chesapeake, VA; City of Shawnee, KS; City of Shoreline, WA; and City of Bellevue, WA. To summarize, this paper will act as a knowledge base on how to manage stormwater pipe infrastructure assets.