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SWG-2016-01025 - Advario Texas Independent Deepwater Expansion, LLC - Texas City Ship Channel and Galveston West Bay and adjacent wetlands - Galveston County, Texas

USACE Galveston District
Published Dec. 7, 2023
Expiration date: 12/22/2023

Public Notice          Project Plans          Field Summary          TECQ Letter

The applicant proposes to dredge and discharge fill, in the construction of a marine tanker terminal comprised of two berths bisected by a finger pier and associated marine industrial infrastructure including roadways, an elevated crane pad, roll-on/roll-off (RORO) ramp, utilities and security facilities.  Dredging will be conducted to establish a deep draft navigation channel at minus 45 feet mean lower low water (MLLW)/ 46 feet mean high water (MHW), including an additional 2 feet of allowable over dredge.  The dredging profile consists of a 3:1 slope including revetment matting to -30 MLLW surrounding the berthing areas (9,000 cubic yards below the high tide line (HTL) of concrete and cable fill).  This includes hydraulic and mechanical dredging of approximately 2.79 million cubic yards (MCY) from approximately 71.5 acres total (38 acres for marine terminal and 33.5 acres in Texas City Terminal Ship Channel).  Approximately 1.45 MCY would be mechanically dredged in the dry and retained onsite to raise the elevation of the associated industrial areas filling approximately 38.37 acres of onsite wetlands, to facilitate future construction, and approximately 38 acres of onsite waters of the United States (WOTUS).  The balance of 1.34 MCY would be hydraulically dredged and be placed into General Land Office (GLO)-managed Shoal Point Island.  The project plan includes the construction of a marine tanker terminal to accommodate one LNG class vessel (approximately 928-foot-long with a 142-foot beam and 40-foot draft) and one transport barge or similar size vessel.  The design includes the following:

•   The trestle (700-foot-long by 14-foot-wide = 9,800-square-foot)

•   The pier (128-foot-long by 90-foot-wide = 11,520-square-foot)

•   The roll-on/roll-off ramp (660-foot-long by 164-foot-wide = 108,240-square-foot) and approximately 3,000 cubic yards of fill including 24” piles and stabilized soil

•   Elevated crane pad (10,000 cubic yards of fill)

•  18 mooring dolphins

•  8 breasting dolphins

The facility components to construct the marine terminal and supporting infrastructure include the following:

•  Dredge marine dock (38 acres total:  35.34 acres WOTUS; 1.01 acres palustrine emergent wetlands (PEM); 0.07-acre estuarine emergent wetlands (EEM)

•  Dredge access to Texas City Ship Channel (33.44 acres WOTUS)

•  Chemical Plant, administrative buildings, roads and utility corridors, equipment and storage areas (126 acres total: 31.87 acres WOTUS; 15.4 acres palustrine scrub shrub wetlands (PSS); 20.91 acres PEM; 0.98-acre palustrine forested wetlands (PFO)