City of Pittsburgh and PWSA Draft City-Wide Green First Plan

  • This plan outlines how Pittsburgh intends to use innovative, cost effective, and green infrastructure approaches to manage stormwater and reduce combined sewer overflows.
  • Implementing the Green First plan will offer a higher level of protection against localized street flooding and basement backups.
  • This plan addresses the root cause of the region’s stormwater challenges by investing in stormwater management infrastructure
    • Green infrastructure practices such as rain gardens, tree plantings, water detention basins, stream restorations and pervious pavement mimic natural processes that slow and capture rainwater
      • These practices reduce the frequency and volume of sewer overflows and reduce the likelihood of neighborhood flooding and basement backups
      • Green infrastructure provides environmental, economic, and social benefits that would not be provided with traditional sewer engineering projects (“grey infrastructure”)
  • This draft examines the existing storm water conditions that will guide where green infrastructure will be installed to achieve the most cost effective and beneficial results to Pittsburgh residents
    • Draft plan analyzed 13,700 acres in Pittsburgh and proposes to manage runoff from 1,835 acres with green infrastructure over the next twenty years
  • The plan includes concept-level designs for six priority sewersheds where green infrastructure would provide significant benefits
    • Green infrastructure methods to be used in each sewershed were selected based on criteria that considered factors such as cost and community impact