Green Infrastructure Planning to Empower Communities

With the recently adopted Community Greening Plan, Capital Region Water has committed to the implementation of green stormwater infrastructure in Harrisburg. The plan is empowering residents to partner in stormwater management.

5 minute read

August 9, 2017, 9:00 AM PDT

By Claire Maulhardt, Andrew Dobshinsky

Rendering

The Capital region Water "Community Greening Plan" illustrated green public spaces with this concept for Broad Street Market. | Capital Region Water / Community Greening Plan

Like many cities with combined sewers, Harrisburg, Pennsylvania is developing a long-term plan to reduce sewer overflows into its river. With its recently adopted "Community Greening Plan" [pdf], Capital Region Water has committed to the implementation of green stormwater infrastructure throughout Harrisburg—including transforming public places such as parks and greenways—as part of this stormwater management strategy.

Yet, faced with similar stormwater management issues as other water utilities, Capital Region Water is taking a notably different approach to implementing green stormwater infrastructure—one that empowers Harrisburg’s residents to suggest project locations and partner in their implementation. This plan is based on several exciting conversations with city residents, businesses, and local organizations, and is the start of many more.

Capital Region Water worked closely with the city of Harrisburg and citizens throughout the planning process. A group of "community ambassadors," made up of representatives of the local community, provided input into the plan and, in the process, became well versed in green stormwater infrastructure. Capital Region Water took the community ambassadors to see built green stormwater infrastructure projects in Lancaster and Philadelphia, including planted corner bumpouts to collect street runoff, swales in parking lots, rain gardens next to schools, and man-made wetlands. Getting to see the Lancaster and Philadelphia projects in person gave the community ambassadors a better understanding of how this infrastructure works and how it could transform the look of Harrisburg.

Capital Region Water assembled a group of Community Ambassadors, representatives from neighborhoods across Harrisburg, who provided input into the plan and, in the process, became well-versed in green stormwater infrastructure challenges and techniques. Capital Region Water took the Community Ambassadors to see built green stormwater infrastructure projects in Lancaster and Philadelphia, which gave them a much better understanding of how this infrastructure works and how it could transform the look of Harrisburg. (Image and text via the Community Greening Plan)

The Community Greening Plan is written for both Capital Region Water and the community at large. While it includes a citywide analysis of where the easiest opportunities to implement green stormwater infrastructure are located based on physical conditions, it also recognizes that community-driven projects may take precedence over projects that are easy to engineer because they have built-in constituencies to advocate and care for them. The Community Greening Plan also provides illustrative examples of how green stormwater infrastructure can be incorporated into homes, neighborhoods, streets, alleys, schools, parks, public spaces, community centers, and vacant lots. The plan is designed to be accessible and inspiring to the community, sparking the collective imagination about how green stormwater infrastructure could be located in neighborhoods.

Because green stormwater infrastructure is distributed—comprising many projects in many locations—the anticipated effect of implementing the Community Greening Plan is cumulative. Each small project adds up to a network of green stormwater infrastructure that manages stormwater, improves the health of waterways, and enhances and beautifies the public realm. (Image and text via the Community Greening Plan)

Even before the plan was complete, Capital Region Water began looking for pilot project opportunities to implement green stormwater infrastructure and maximize stormwater management in cost effective and innovative ways. Working with community groups, Capital Region Water selected three pilot project areas for green stormwater infrastructure that demonstrate a wide range of green stormwater infrastructure tools—from simple, low-cost grading alternatives to signature design projects. The selected pilot projects prioritize management solutions for surface, vegetated systems, but the majority of the systems also include a subsurface infiltration or detention component to maximize stormwater management.

Image text: Working with community groups, Capital Region Water selected three pilot project areas for green stormwater infrastructure that demonstrate a wide range of green stormwater infrastructure tools—from simple, low-cost grading alternatives to signature design projects. At 4th & Dauphin Park, Capital Region Water is partnering with the City of Harrisburg on the transformation of a neighborhood park. New play equipment and a pervious basketball court will be installed alongside a bioswale, rain garden, and subsurface storage to maximize stormwater management. (Image via the Community Greening Plan)

In addition to the pilot projects, Capital Region Water was presented with an opportunity to join the city of Harrisburg in transforming four neighborhood parks. Grants from the Pennsylvania Department of Conservation and Natural Resources (DCNR) helped to fund both the Community Greening Plan and the park renovations, so all three parties shared a desire to leverage their investments. The Community Greening Plan—as with green infrastructure plans in York and Lancaster also funded through DCNR's Community Conservation Partnership Grant Program—has elevated the importance of public parks and trails from being perceived in some cases as 'nice to have' amenities into multi-functional necessities for flood and pollution control. The DCNR grant program is helping leverage state and federal funding sources and enabling communities to make impactful, holistic, and sustainable changes that make them better and healthier places to live, work, and play.

The parks receiving upgrades range in size and amenities and are located in different neighborhoods across the city. Upgrades will replace outdated, unsafe play equipment and deteriorating walkways with new pervious basketball courts over underground stormwater storage, new play structures, rain gardens, porous sidewalks, and swales. Green stormwater infrastructure is integrated into the city’s designs in a cohesive, integrated way that doesn’t sacrifice either stormwater management or recreation for the other. The topography of the parks and the areas surrounding them allow the parks to manage not only their own stormwater, but also stormwater from surrounding streets, sidewalks, and parking areas.

With construction slated for completion this summer and fall, Harrisburg will get a glimpse of the Community Greening Plan in action. Capital Region Water will use lessons learned from these projects to inform future green stormwater infrastructure projects in parks and other public spaces throughout the city. And, Capital Region Water will have taken a few substantial steps toward improving stormwater management goals, quality of life, and partnerships with the community.

Claire Maulhardt, City Beautiful H2O Program Manager, Capital Region Water

Andrew Dobshinsky, Senior Associate / Planner + Urban Designer, WRT

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