Sewickley Creek Wetlands The Sewickley Creek Wetlands Interpretive Area is a 21-acre environmental education area with trails and an observation deck. The site is dedicated to natural study and observation of plants and animals. A wetland is a combination of soils, plants, and water, characterized by the dominance of moisture in the soil. Many of the plants depend on water, even though the soils may appear dry. Sewickley Creek Wetlands is a man-made wetland built by the Pennsylvania Turnpike Commission to replace those that were affected by the construction of the Amos K. Hutchinson Bypass.
Source: Westmoreland County, PA – Official Website – Sewickley Creek Wetlands