USACE Philadelphia District
Published June 26, 2023
Expiration date: 7/26/2023

The Murderkill River entrance to the Delaware Bay is maintained by concrete filled geotextile bags serving as jetties along the northern bank and the southern bank, extending east into the Delaware Bay. The Murderkill River has a federally authorized navigation channel of 60 feet width at -7 feet MLW. The adjacent jetty structures are not included as part of the federal project. The concrete filled bags that make up the jetties are deteriorating and require replacement. The south jetty is overtopped by wave action and the tides, resulting in shoaling of the navigation channel. The 300 feet section of the north jetty is currently losing sediment through gaps in the concrete bags causing additional shoaling of the inlet channel. Both jetty reconstructions will reduce the loss of sand and sediment into the Murderkill River, reducing the need for dredging of the entrance channel. The concrete bags making up the south jetty will be excavated, removed and hauled to a recycler off-site in roughly 20 feet sections. Sand excavated to achieve proper elevations for the jetty will be placed along the beach south of the south jetty and graded to meet the existing profile. Geotextiles, foundation stone, bedding stone and armor stone will then be placed to form the new jetty. More details are available in the "Public Notice & Plan Details" attachment. Public comments are requested by July 26, 2023.