Maryland Avenue Stormwater Improvement Project

Completed Stormwater

The Maryland Avenue Stormwater Improvement Project uses cost-effective green stormwater solutions in Shadyside to reduce runoff entering the combined sewer system. These stormwater solutions are located within the public right of way (public streets and sidewalks).

Progress & Status

100%
Construction Complete

Project Goals

  • Capture and store stormwater runoff before it reaches our overwhelmed combined sewer system
  • Reduce combined sewer overflows in the A-22 sewershed
  • Reduce basement backups and neighborhood flooding

Phase One: Howe Street and Kentucky Avenue

  • Permeable pavers, storm inlets, and underground stone storage were installed in portions of the parking lanes on Kentucky Avenue and Howe Street between South Negley Avenue and College Street.
  • PWSA coordinated with City Forestry to protect healthy mature street trees and replace removed trees.

Downspout Disconnection Pilot Program Update

  • Prior to construction, PWSA offered some properties on the 5700 block of Howe Street the opportunity to participate in a pilot program to disconnect their downspouts and direct stormwater runoff from their roofs into the new stormwater infrastructure located in the street.
  • Due to specific challenges for properties and lack of widespread interest to connect into the proposed system, PWSA is no longer implementing the downspout disconnection pilot program as part of this construction project. An update letter was provided to all affected residents, dated May 24, 2022.
  • Stormwater storage volume constructed in the public right of way is not impacted by this change.

Maintenance

  • As part of the project closeout, the construction contractor will perform maintenance on the permeable paver parking lanes along Kentucky Avenue and Howe Street on Thursday, November 10 and Friday, November 11, 2022. No parking signs will be posted in advance. Only one side of the street will be closed at a time and flaggers will maintain traffic in both directions.

Financial Partners

  • This project is partially funded by ALCOSAN’s GROW grant program.

Additional Information

Locations & Schedule

Location Details:
The project area is located near Kentucky Avenue, South Negley Avenue and Summerlea Street, Alder Street, and South Highland Avenue. The first phase of the project includes Howe Street and Kentucky Avenue between South Negley Avenue and College Street.

Start Date: Kentucky Avenue started late June 2021. Howe Street started March 2022.

Completion Date: Kentucky Avenue completed December 2021 (tree plantings completed May 2022). Howe Street completed early September 2022 (tree plantings completed early June 2022).

Map of the Maryland Avenue project area, loosely bound by Kentucky Avenue, South Negley Avenue and Summerlea Street, Alder Street, and South Highland Avenue.

Maryland Avenue
Pittsburgh, PA 15232
United States

Project Contacts

Please report flooding issues to PWSA Dispatch

24/7 Emergency Dispatch :
Press option 1 after dialing
412-255-2423

If you have questions, please contact the Project Manager

Project Manager :
Ryan Quinn
412-255-8800 ext. 2421
rquinn@pgh2o.com

If you have questions, please contact Public Affairs

Education and Outreach Associate :
Elaine Hinrichs
412-738-1887
ehinrichs@pgh2o.com