Wetland Mitigation – New Track Facility Penn State Altoona Campus

Construction of a new athletic track at the Penn State Altoona Campus required mitigation of over an acre of wetlands, but there was little area on the University property where a wetland of this size could be created.  The one available site was sloped and would require a large excavation project if a conventional flat-bottomed wetland were to be constructed. 

To meet this mitigation requirement without the purchase of off-site lands, we developed a unique system of terraced subsurface clay barriers running parallel to surface contours across the site.  These barriers seasonally impound shallow water and saturate the uphill soils to the toe of the next higher barrier, creating wetland conditions throughout the slope.

This approach is highly space efficient; having no cut or fill slopes, and leaves much of the existing wetlands in place as seed and cover stock for the created habitat.  It is also visually unobtrusive and creates a diversity of hydrologic regimes and habitat types in close proximity to one another.  The Altoona Campus considers this mitigation site to be an exceptional educational resource for its environmental science programs.

Services provided include:

  • Jurisdictional Wetland Delineation
  • GPS Site Surveying
  • 105/404 PA/COE Joint Permit Application
  • Phase I Archeological Survey Coordination
  • Wetland Mitigation Planning
  • Engineering Design Plans
  • Construction Coordination and Cost Estimates
  • Construction Monitoring
  • Monitoring Program
  • Educational Use Planning