EAST HILLS Neighborhood
Pittsburgh, Pennsylvania

Oakwood & Batavia Green Streets

Project Description


Ethos Collaborative worked closely with Nine Mile Run Watershed Association, the City of Pittsburgh, Pittsburgh Water and Sewer Authority, and ALCOSAN on what is likely the first green infrastructure project within the Pittsburgh public Right-of-Way. The cascading, curbed stormwater bump-outs and planter beds were developed to reduce runoff into Nine Mile Run, an urban stream located in Pittsburgh, Pennsylvania.

Water from the streets of the Rosedale neighborhood of Pittsburgh, in the upper Nine Mile Run watershed, is directed to curb bump-outs in the right of way, where it is conveyed through a sediment forebay, through a series of planters, and to underground storage. The system is fitted with a series of weirs and flow monitors that provide information on GSI performance including the total volume of stormwater managed by the system. The curb bump-outs additionally enhance pedestrian safety by shortening crossing distances and calming traffic, and they augment neighborhood aesthetics with seasonal blossoms and foliage in the street. Ethos Collaborative and collaborators Landbase Systems and StormWorks sited, designed and supported construction of this project. The Oakwood Batavia project, combined with a sister project at the nearby Crescent Early Childhood Center, manage over 325,000 gallons of water per year.

Services Provided

  • Project Management
  • Conceptual Design
  • Costing / Performance
  • Stormwater Modeling
  • Site, Utility, Grading & Stormwater Design
  • Community Engagement
  • Plan Production
  • Specifications
  • Land Development
  • Environmental Permitting
  • Construction Administration
Photo of Oakwood street

Existing Conditions

Before implementing the new design, the sidewalk was in poor condition and all of the stormwater runoff entered into the combined sewer system through the grates along the curb.

Photo collage rendering of green infrastructure

Proposed Conditions

This photo collage rendering shows how the green infrastructure could brighten the streetscape and capture stormwater runoff before it enters into the combined sewer system.


Completed Project

Community & Design Partners

Nine Mile Run Watershed Association

  • Project Management
  • Grant Management


  • Landscape Architecture
  • Community Engagement

Operation Better Block

  • Community Input & Feedback
  • Volunteer-Driven Implementation as part of Junior Green Corp Program.

Pittsburgh Water and Sewer Authority

  • Long-Term Maintenance

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