ENB Region 2 Completed Applications 08/27/2003

Siltation and accumulation of sediments in the berth area at the Vanbro facility located at 1900 South Avenue, Staten Island, NY., have caused shoaling that impedes navigation. The Applicant is requesting a ten-year maintenance dredging permit to maintain navigable access and to provide for safe under keel clearance. The berth would be dredged in a minimum of two cycles, the first cycle removing approximately 5,000 cubic yards on an immediate need basis with an additional 5,000 cubic yards being removed in a subsequent dredging event(s). The area to be dredged is 650 feet long and 50 feet wide and would be dredged to a depth of 15 feet below mean low water (MLW), with a maximum over-depth of 2 feet.

The slope of the northern and southern inboard sections of the dredge prism will provide a 3:1 ratio to ensure stability.  Based upon the dredge limits and slope the design depth will be located over seventy feet (70 ft) away from the tidal wetlands, further reducing impacts to shallow areas of the wetland habitat and degradation of adjacent habitats.

Material handling at upland facility will be implemented based upon permit conditions and control measures designed to minimize impact to marine resources.  Dredging will be performed during the authorized seasonal window.  The removal of sediments will utilize an environmental bucket with hoist rate restrictions to minimize suspended solid generation.  Sediment will be placed in an adjacent scow where the material will be mixed with cement to solidify and stabilize the material.  The solidified material will be offloaded into trucks and stockpiled within a berm located over two hundred feet (200 ft) away from the waterfront.   The berm will be constructed of earth and is designed with sufficient freeboard to retain both solids and potential rainfall runoff.  The material will be screened to produce a classified select fill. The Applicant has submitted a Beneficial Use Petition to the Department to use the amended dredged material for landfill cap, road base material, or both.

The applicant proposes to construct a new 34 foot by 11 foot second floor addition to an existing one-family house. The existing house is located within the adjacent area of NYSDEC regulated Class I Freshwater Wetland AR-3 (Richmond Creek). The project site is located at 288 Nugent Street, Staten Island Block 2271, Lot 17.