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SABINE-NECHES WATERWAY (SNWW) CHANNEL IMPROVEMENT PROJECT FEASIBILITY STUDY

Sabine-Neches Waterway IEPR report ... - Galveston District

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Basis for Comment (Continued):<br />

discussion of commodity impacts on optimal draft that is hard to reconcile with the screening<br />

process described in DFR section V. DFR V, Tables 1 through 4 are difficult to follow and<br />

require better explanation. The “analysis conducted for other studies” mentioned on page<br />

DFR V-4 needs a complete citation, and copies should be presented in an appendix and made<br />

available for this review.<br />

Significance – High:<br />

The apparent problems with the Plan Formulation are highly significant, as they call into<br />

question the basic elements of the proposed project. It is unclear that the proposed widening and<br />

dredging of the <strong>SNWW</strong> is in fact the best plan to address the situation.<br />

Comment Cross-referencing:<br />

(3) Comment: The crucial analysis of vessel design and sailing drafts is inadequately supported<br />

by data and appears questionable.<br />

(7) Comment: The choice of project design vessel appears to drive the project design and<br />

benefits estimates, yet remains unjustified in the report.<br />

(15) Comment: The presentation of data in maps, figures, and tables needs to be substantially<br />

improved.<br />

(17) Comment: The analysis and conclusions are based on what appears to be over-reliance on<br />

the pilots or at least a lack of documentation of their opinions.<br />

Recommendations for Resolution:<br />

To resolve these concerns, the report would need to be expanded to include:<br />

1. A detailed, quantified description of the No Action alternative.<br />

2. Detailed examination of incremental widening and deepening alternatives, and a<br />

“turning basins and anchorage” alternative.<br />

3. Thorough consideration of non-structural alternatives, including lightering larger<br />

vessels, handling large vessels at off-shore terminals, VMS/VTS improvements,<br />

and relaxing or altering the Pilots’ rules.<br />

4. An analysis of the channel extension portion of the project.<br />

5. A clear, well-documented description of the screening process.<br />

6. A quantitative economic analysis of the use of the existing or an expanded LOOP<br />

facility and the pipelines and other facilities necessary utilize it.<br />

7. A detailed examination of how modification of the Sabine Pilots’ rules and<br />

operations could improve productivity and how safety would be impacted.<br />

8. Explicitly consider the contributions of VMS/VTS systems in reducing the need<br />

for channel widening.<br />

Addendum <strong>SNWW</strong> External Peer Review Report 5 Battelle<br />

June 16. 2010

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