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

data. Trends are more apparent from the second table which shows an average of 7 percent of
2006-2008 tonnage associated with design drafts over 40 feet, compared to 15 percent for
1999-2001. For the 1999-2008 period, the use of vessels with design drafts less or equal to 40
feet ranged from 2 percent in 2008 to 27 percent in 1990, with a mean of 12 percent and
median of less than 10 percent. The data in Tables 3A and 3B show more efficient utilization
patterns within the constraints of the existing channel depth and given uncertainties associated
with spot market sales, variability in refinery input needs, congestion, and dock and pilot
availability.
TABLE 3A
SNWW Total Crude Oil Imports (1,000’s of Short Tons) 1990-2008*
and Imports Transported at Loaded Drafts Over 37 feet (Short Tons and Percentage
Distribution)
Design 1999 2000 2001 2002 2003 2004 2006 2007 2008
Draft (ft)
Total Crude Oil Imports by Vessel Design Draft and Year
50 1,485 1,442 1,621 4,876 6,495 5,711 3,910 2,452 2,690
Total 53,834 67,187 64,226 66,383 70,158 69,875 57,615 56,078 49,872
Design
Total Tonnage for Loaded Drafts Over 37 feet by Design Draft Class and Year
Draft (ft)
50 793 432 859 3,364 3,446 3,598 1,369 1,192 1,049
Total 33,170 36,622 38,536 42,485 36,067 47,515 33,993 41,181 35,176
Design
Draft (ft) Total Tonnage for Loaded Drafts Over 37 feet by Design Draft Class and Year
50 52% 33% 53% 69% 64% 63% 35% 49% 39%
Total 60% 60% 60% 64% 62% 68% 59% 74% 71%
Source: USACE, Navigation Data Center Detailed Files (unpublished)
CY2005 data is not presented due to reporting problems with the loaded draft field
Addendum SNWW External Peer Review Report 19 Battelle
June 16. 2010