Four Mile Run Stormwater Project

In Planning Green Stormwater

The Four Mile Run Stormwater Project encompasses Schenley Park and several Pittsburgh neighborhoods including Garfield, Hazelwood, Oakland, and Squirrel Hill. This project will capture and route stormwater through a natural channel that will follow the path of the historic streams that formed Four Mile Run from Panther Hollow Lake to the Monongahela River. It will help to reduce combined sewer overflows, basement backups, and neighborhood flooding.

Progress & Status

Design Complete

Early Action projects along Overlook Drive and the Bridle Trail are underway. 

Panther Hollow Lake

  • Stormwater improvements to Panther Hollow Lake will enable us to manage the depth of the lake and control the volume of water entering the combined sewer system. 
  • The State Department of Environmental Protection (DEP) is requiring a dam permit for the lake. 
  • We are working to obtain the necessary permits and meet safety regulations. 

Junction Hollow: Stormwater improvements will follow the path of the former Junction Hollow Stream. This portion of the project will channel rainwater, restore streambanks, and plant native and climate tolerant vegetation. 

Connection to the River: We are evaluating a series of options to convey stormwater from Schenley Park and the Run to the Monongahela River. 

For more information about the Four Mile Run Stormwater Project, please visit

Locations & Schedule

Start Date: Design started May 2018. Construction: Summer/Fall 2020 (anticipated). Will begin after permits are approved.

Completion Date: Design Completion: Spring/Summer 2020. Construction Completion: There are multiple phases to the overall Four Mile Run Stormwater Project. Work will continue for several years.

Map of Four Mile Run showing its boundaries, neighborhoods, and connection to the Monongahela River

Schenley Park
Pittsburgh, PA 15213
United States

Project Contacts

If you have questions, please contact the Project Manager

Chief of Program Management :
Alex Sciulli
412-255-8800 x5504

If you have questions, please contact the Communications Project Manager

Government Affairs Manager :
Jake Pawlak