DOVER – When the U.S. Army Corps of Engineers struck rock bottom during deepening of the Delaware River navigational channel, the state’s artificial reef program under the Department of Natural Resources and Environmental Control’s Division of Fish & Wildlife struck a new partnership with the Corps of Engineers for creating new fish habitat. Since last December, DNREC’s Fisheries Section and the Corps have partnered on a beneficial reuse project for converting nearly a million tons of rock removed from the river bottom into enhanced habitat for marine life on two artificial reef sites in the lower Delaware Bay – and at no cost to the state.

“This project is a shining example of state and federal cooperation that achieves better management and use of natural resources,” said DNREC Secretary Shawn M. Garvin. “We are grateful for the opportunity to team with the Corps on a project that yields such outstanding environmental and economic benefits – ranging from better navigation of the Delaware River for commercial shipping, to improving fisheries habitat, to increasing anglers’ opportunities in Delaware waters.”

“The Corps greatly appreciates being able to join forces with our DNREC partners and the State of Delaware on such an innovative project,” said Lt. Col. Kristen Dahle, Commander of the U.S. Army Corps of Engineers’ Philadelphia District. “Beneficially using rock from the Delaware River navigation channel to create enhanced habitat aligns engineering with natural processes, and maximizes scarce resources. These types of projects create triple-win outcomes integrating social, environmental and economic benefits.”

During the Corps of Engineers’ deepening of the river’s navigational channel to 45 feet to accommodate larger ships coming into port, two types of rock were encountered between Wilmington and Philadelphia: bedrock and more abundant glacial rock that washed downstream during the most recent ice

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