DESCRIPTION: The existing federal navigation project provides for a channel, 8 feet deep, 100 feet wide from deep water in Hempstead Harbor to the head of navigation at the City of Glen Cove.
AUTHORIZATION: The Federal channel was authorized by the Rivers and Harbors Act of 1925.
COMMERCE: Average annual commercial tonnage reported is approximately 91,000 tons consisting of building stone, sand and gravel material. This channel provides save navigation from Glen Cove through Hempstead Harbor to the Long Island Sound and is used by commercial and recreational marine interests, including three marinas, sports fishing club, fuel terminal, and metal salvage yard. Annual usage is 221 trips.
STATUS: No work is ongoing. The outer portion of the channel was maintained in FY97. Maintenance dredging of the remaining portion of the creek was awarded to Bullard Lindsay Contracting on 30 August 2000. Dredging was suspended in April 2001 due to the discovery of an oil layer sediment in the creek and radiation in dredged material at the upland dewatering site in May 2001. Subsequent investigation revealed that the radiological contamination was caused by discrete pieces of ore or slag, varying in size from pea gravel to cobbles. A stop work order was issued and radiological contamination signs were posted. The Corps provided assistance to decontaminate and demobilize (including the two scows with dredged material in the creek) the contractor’s equipment on site. All equipment was decontaminated and demobilized. Additional sampling of the creek sediment for radiological and oil contamination was completed and the report was submitted by the contractor (Cabrera) in the 1st week of March 2002. The report concluded that significant thorium contamination is present in the creek sediments. The radiological contaminated material in the dewatering site was segregated by USEPA in the summer of 2002 and stored in the Dixon Warehouse for eventual disposal. The City of Glen Cove disposed of the remaining non-radioactive dredged material (to N. Hempstead Landfill) from the dewatering site in November/December 2002. USACE was not able to complete the dredging of the creek, which was contaminated with radiation, at that time due to the fact it was incorporated into the ongoing Superfund cleanup project in the adjacent upland areas. The dewatering operations at the Li-Tungsten site during the 2000 maintenance cycle left portions of the bulkhead damaged and unstable. The damaged bulkhead was repaired under a 2005 USACE contract to Avino Construction Inc. in the amount of $147,700.00. Bulkhead repair work started in the first week of October 2005 and completed on 19 Dec 2005. Dredging of the remaining portions of the creek was performed for EPA under the Superfund program. The project was completed in March 2007. The supervision and administration of the dredging was handled by New York District.
CONTACT: Alexander F. Gregory, Project Manager, (917) 790-8427
U.S. Army Corps of Engineers, New York District
26 Federal Plaza
New York, NY 10278
District Area: NY #3