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Pennsylvania Capitol Park Improvements

Site solutions correct stormwater runoff issues at Pennsylvania’s capitol building.
  • Environmentally sensitive site improvements preserve the Pennsylvania Capitol park-Gannett Fleming

    Environmentally sensitive site improvements preserve the Pennsylvania Capitol park.

Pennsylvania Capitol Preservation Committee

Harrisburg, Pennsylvania

Our Role
Civil/Site Study and Design.

6 years
  • Study identified problems, offered solutions to fix stormwater runoff issues
  • Special attention paid to aesthetics to preserve park’s beauty
  • Curb ramps and crosswalk at busy intersection revised for accessibility.

The open park area surrounding the Pennsylvania Capitol building in Harrisburg, Pennsylvania, is visible to thousands of passers-by each day. When the storm drain system surrounding the building began lacking the capacity to carry stormwater and allowed water to erode the walkways and slopes, Gannett Fleming was retained to assess the problems and recommend improvements to maintain the beauty of the park.

What We Did

Gannett Fleming’s civil/site engineers studied the site’s existing storm drain system, which consisted of concrete gutters adjacent to walkways and small inlets that collected stormwater runoff. The firm made recommendations for storm drainage improvements and surface stabilization as well as cost analyses for improvement options. The resulting environmentally sensitive design was cost-effective and enhanced the existing system. Gannett Fleming also provided site geotechnical and soil infiltration investigations, design and permitting services for curb ramps and sidewalks, and construction phase services.

Key Features

  • Dye-testing of existing piping systems
  • Topographic survey
  • Hydrologic analysis
  • Flow-path investigation
  • State and city agency coordination.

Similar Projects: Facilities: Civil/Site Development, Engineering, Engineering: Facilities, State & Local Government, Water/Wastewater: Stormwater, Water/Wastewater