在全国大赛中获得第一名后，ACLA于2012年开幕当天在匹兹堡儿童博物馆附近迎来了这个公园的设计。设计方面尊重并强调了该空间在呼吸的同时具有历史意义的重要性。新鲜生活进入广场。在重新连接1960年代“城市更新”努力破坏的历史悠久的城市网格后，公园再次成为阿勒格尼市的公共聚集区。

重要的设计功能，如生物威胁和本土种植教育访客关于可持续发展，而互动艺术安装激活了空间，并促进了与附近的儿童博物馆的联系。强调匹兹堡地区水路，林地和草地的物种，阿勒格尼公共广场的种植设计将游客与当地生态系统的经验品质相结合，同时也处理广场的暴风雨。 ACLA组织和管理了一大队设计师和工程师，以应对建设这个园区的独特挑战。

与公共艺术家合作开发场地特定的安装，完全融入公园，是设计过程的一个重要方面。由Ned Kahn组成的艺术作品由64个不锈钢杆组成，由匹兹堡蒸汽加热系统供水的水喷出雾。一个飘渺的悬浮球浮在公园的表面上方。

After winning first place in a national competition, ACLA ushered the design for this public park, adjacent to the Pittsburgh Children’s Museum, through its opening day in 2012. The design respects and highlights the historic importance of the site at the same time as it breathes fresh life into the plaza. After reconnecting the historic city grid that was destroyed during 1960’s-era ‘urban renewal’ efforts, the park is once again the public gathering area it once was for Allegheny City.

Important design features such as a bioswale and native planting educate visitors about sustainability, while an interactive art installation activates the space and fosters a connection with the nearby Children’s Museum. Emphasizing species native to the waterways, woodlands, and meadows of Pittsburgh’s region, the planting design for Allegheny Public Square connects visitors with the experiential qualities of the local ecosystems while also processing the plaza’s storm-water. ACLA assembled and managed a large team of designers and engineers to meet the unique challenges of building this park.

Collaboration with a public artist to develop the site-specific installation, fully integrated into the park, was an important aspect of the design process. The resulting art piece by Ned Kahn consists of a grid of 64 stainless steel poles that emit fog with water fed from the steam heating system of Pittsburgh. An ethereal hovering sphere floats above the park’s surface.