Cultural Resources

Schenley Park is considered a National Register Listed Historic Site Under Section 106 of the National Historic Preservation Act, federal agencies are required to consider the effects of their undertakings on historic properties in consultation with historic preservation stakeholders. The implementing regulations for Section 106 (36 CFR Part 800) define consultation as the process of “seeking, discussing, and considering the … Read More

Public Meeting 2 Materials now available!

The materials from Public Meeting #2 held on 14 November 2018 are now available on this website.  Please visit to download!

We Want Your Input! Join the discussion about Four Mile Run

Join us on Wednesday, November 14th to continue the discussion about the Four Mile Run Stormwater Improvement Project. The Pittsburgh Water and Sewer Authority is hosting an interactive workshop that will invite your input into the preliminary design of Four Mile Run’s stormwater improvements. Attendees will have the opportunity to visit individual stations focusing on a specific part of the … Read More

WESA: “Pittsburgh Has A Stormwater Problem; But PWSA Has A Plan For Schenley Park”

WESA’s Margaret J. Krauss joined the Four Mile Run Stormwater Improvement Project team for our public meeting and walking tour on 17 September.  Her article for WESA, viewable at, includes a description of the project and some quotes from PWSA’s Executive Director Robert Weimar and Manager of Sustainability James Stitt.

Project Photos: Issues with the Park Streams

The conditions of the streams in the park have an impact on the overall function of the Four Mile Run Stormwater Improvement Project.  By addressing some of these issues, we enable a more effective and resilient stormwater conveyance system to move stormwater to the Monongahela River.

Did you know? How we plan to convey rainwater from the neighborhoods

Image of Boundary Street in Oakland

As it was in pre-development conditions, a restored stream network in 4MR should permit the safe conveyance of runoff from the entire contributing watershed.  Outside of the park area, the neighborhoods are currently drained by the combined sewers: contributing to combined sewer overflows, basement backups and overland flooding within the Run.  A priority goal of this project is to prepare … Read More

Did you know? Drones and LiDAR surveying

Drone Photography and LiDAR The 4MR team used unmanned aerial vehicles (UAVs, also known as “drones”) to conduct data acquisitions at project sites safely and with significant economic efficiencies, such as reductions in the number of field personnel required, and the time required for both data acquisition and review. It is a low-cost, low-environmental-impact solution that optimizes the quality and … Read More

Did you know? All about flow monitoring!

Rainfall and Sewer Flow Monitoring Rainfall quantity (total rainfall in a storm event) and intensity (rate of rainfall) drive the ability of the landscape to absorb rainfall, and the quantity and intensity of stormwater runoff that drains through streams and combined stormwater and sanitary sewers. The ability of landscapes, streams, and sewers to absorb and convey stormwater is being modeled … Read More

Did you know? How PWSA is evaluating wetlands and streams in Four Mile Run.

Image of Panther Hollow Run in Schenley Park showing stream erosion.

Four Mile Run Wetlands and Streams The Four Mile Run (4MR) project area includes several historic streams that have been and will continue to be evaluated as part of this project. These streams include Phipps Run, Panther Hollow Run, and Junction Hollow, along with Panther Hollow Lake. During site visits, CEC staff delineated wetlands and streams, identified benthic macroinvertebrate communities, … Read More

You’re Invited! Learn how stormwater improvements in Four Mile Run can create safe, flood-prepared neighborhoods.

Press release originally published at: FOR IMMEDIATE RELEASE September 11, 2018 Media Contact Rebecca Zito Communications Project Manager Phone : (412) 689-1462 Calming the Storms in Four Mile Run Learn how stormwater improvements in Four Mile Run can create safe, flood-prepared neighborhoods. Pittsburgh, PA – On Monday, September 17th the Pittsburgh Water and Sewer Authority (PWSA) will host a community meeting … Read More