Contractors for the U.S. Army Corps of Engineers Pittsburgh District clear 3.4 acres of land for a concrete batch plant at the Montgomery Locks and Dam in Monaca, Pennsylvania, July 20, 2023. Some of the trees cut down were repurposed into fish habitats. The Pittsburgh District used a helicopter to lift 29 trees bundles and concrete blocks to create a new fish habitat in a water basin on the Ohio River. The fishery will mitigate impact caused by construction planned in the coming years at three locks and dams nearby. The construction of the three new locks is part of the Upper Ohio Navigation Project, a multi-billion-dollar project that will benefit inland navigation. The district will remove the auxiliary chambers at the Montgomery, Dashields and Emsworth locks and dams, replacing them with larger navigation chambers. (U.S. Army Corps of Engineers Pittsburgh District photo by Michel Sauret)