Ponce de Leon Combined Sewer System Separation Planning, Design and Construction

摘要

In a highly developed corridor along Ponce de Leon Avenue in San Juan, Puerto Rico, the Puerto Rico Aqueduct and Sewer Authority (PRASA) have a combined storm water and sanitary sewer collection system that conveys flows into their Puerto Nuevo Wastewater Treatment Plant. To reduce flows and treatment costs, a plan was developed and implemented to separate the storm water and sanitary sewer flows that will minimize disruption to the businesses along the corridor. The existing combined flow channel is approximately 10,700 feet long, located in the center of Ponce de Leon Avenue, which runs through a mainly business and commercial area within a heavily congested arterial. There are three one-way traffic lanes and a dedicated one-way bus lane. Many of these banks, governmental and private office buildings, will experience disruption during construction activities, so the new sanitary sewer lines had to be carefully planned to minimize impacts to traffic and to the local businesses.