TroubLe_Zera

A multi-year USGS study shows that natural, soft engineering techniques installed by the Pennsylvania Department of Environmental Protection and local partners are delivering real results. These stream restoration practices—using logs, natural backfill, and regraded banks—significantly reduced streambank erosion, boosted floodplain sediment deposition, and improved overall stream health in an impaired agricultural watershed. Key outcomes: • Restored stream segments saw a 7-fold increase in net sediment retention. • Streambank sediment flux shifted from erosional to depositional, stabilizing the system. • Restored reaches developed coarser streambed sediments, improving habitat for fish and other aquatic life. • Drone-based digital elevation models provided cost effective monitoring that complemented field measurements. Why it matters: These DEP-supported restoration efforts not only improved water quality but also contributed to delisting portions of Turtle Creek from the Clean Water Act 303(d) impaired waters list—a major milestone for local ecosystems and for Chesapeake Bay watershed recovery goals. 🔗 Read more about the study: usgs.gov/centers/chesapeake-…