Planning and Environmental Documents for Public Review

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SWG-2014-00905 - Enterprise Products Operating, LLC - Harris County

Published Jan. 27, 2015
Expiration date: 2/27/2015

Full Public Notice          Project Plans

PROJECT DESCRIPTION:  The applicant proposes to replace the existing barge dock located at Wharf No. 8 with a new barge/ship dock that includes a 20-foot-wide by 120-foot-long access trestle, a 12-foot-wide by 106-foot-long pipe rack, a 125-foot-long by 60-foot-wide dock, two 8-foot-wide by 45-foot-long lower barge access platforms, a 15-foot-wide by 30-foot-long gangway support structure, five mooring dolphins, and four breasting dolphins to support a new Ethane export terminal.  The applicant proposes to place 750 cubic yards of articulated concrete mat beneath the dredged ship/barge dock.

An existing boat house and boat ramp located to the west of Wharf No. 8 would be demolished to construct a 387-linear-foot bulkhead in uplands.  The replacement 1,000-square-foot boat house and 15-foot-wide by 100-foot-long boat ramp, discharging 56 cubic yards of concrete slab on compacted stone base fill, would be placed to the east of the previous structure.  The applicant also proposes to construct a 530-linear-foot-long dike protection wall in uplands to maintain the stability of Spillman’s Island.  There is no fill into waters of the U.S. associated with the proposed bulkhead or dike protection wall.

The applicant also proposes to mechanically and/or hydraulically dredge a 12.6-acre area to a depth of -45 feet mean low tide plus -2 feet of overdredge.  The dredging will begin along the shoreline of Spillman’s Island and extend to the toe of the adjacent Federal channel.  The dredging will impact 0.48 acre of estuarine intertidal emergent wetlands and 0.84 acre of live oyster reef and remove an estimated 421,000 cubic yards of material.  The dredged material would be placed in one or more of the following dredged material placement areas:  Spillman’s Island, Atkinson Island, Dredged Material Placement Area No. 14, 15, 16, Alexander Island, Peggy Lake, East West Jones (privately-owned), and San Jacinto State Park (Beneficial Use Site).  The applicant can provide a copy of their Dredged Material Management Plan upon request.