These comments are being submitted on behalf of Kirby Corporation. Kirby is the
nation's largest operator of inland tank barges, with a fleet of over 900 barges and
250 towing vessels. Kirby has extensive operations on the GIWW that would be
impacted by this proposed change to regulations. Kirby strongly opposes the
proposed modification to the drawbridge regulations for the Bayou Blue Bridge.
It is important to note that the vessels transiting this reach of the GIWW would not
have any viable alternative but to wait for the bridge to open, while bridge user can
use the fixed span bridge across the GIWW that is approximately 5 miles west of
the bridge in question. The bridge owner could also improve the opening and
closing speed of the bridge to improve its efficiency in passing vehicular traffic.
The GIWW is a major artery of commerce that is especially active in the transport
of petroleum, chemical and petrochemical products. The proposal will reduce by 5
hours, or 19%, the time available for tows to move on the waterway. In essence,
this proposal seeks to reduce by 19% the capacity of this vital waterway, which
transports, across its entire reach, some 120+ million tons of cargo each year with
a value in the billions of dollars. The actual impact may be greater, since there is
only a 30 minute window between the two afternoon closures. Allowing the time
needed to open and close the bridge and the potential need for tows to hold up
some distance from the bridge while waiting, it is quite probable that the traffic
waiting could not be cleared safely during a 30 minute window. This means that
tows could be delayed 3.5 hours or more, depending on how much traffic has
backed up and the time needed to clear traffic headed in each direction.
There are significant safety issues to bottling up traffic on either side of the bridge.
There are waterfront facilities on either side of the bridge and there are bends in
the waterway on either side. This will impact where tows can hold up and
complicates safety when traffic resumes following a closure. Where safety
requires that tows push into the bank while waiting, this increases the prospects
for erosion and property damage in areas on either side of the bridge. If this rule is
to be adopted, mooring buoys should be provided to provide a safe place for tows
to hold while waiting for the bridge. The vessels waiting will be wasting fuel during
the periods of delay. Compressing traffic on the channel increases the probability
of accidents, especially when faster vessels are overtaking slower vessels in a
crowded environment. Closures at the bridge may also reduce the efficiency of
operations at the locks where the GIWW meets the Mississippi River by causing
periods of time where no vessels are available for lockage, followed by a large
number of vessels which may arrive at the same time, multiplying the delay effect
of the bridge closures.
The Gulf Intracoastal Canal Association estimates the daily operating rate of a
typical GIWW tow at $7800 per day, plus fuel. If one assumes that 11.9 tows will
be delayed by these rules an average of 2 hours each, this amounts to a daily loss
of over $7500, plus fuel costs, that will be borne by barge companies and their
customers as a consequence of the proposed closure periods. On the contrary, if
one assumes that all of the 339 vehicles that transit the bridge during the
proposed closure period were to go around to the fixed span bridge to the west
and that this would require them each to consume an additional gallon of fuel, even
at $4 per gallon the cost of this would only amount to $1356 per day. The
information presented in the Federal Register notice does not indicate how many
of the 339 vehicles that transit during the proposed closure periods each day are in
fact delayed due to bridge openings or how long they must wait on average. It
seems that this is the true measure against which the significant cost delays to
maritime commerce and safety must be weighed. If indeed these proposed
closures are to facilitate the movement of school busses, data should be provided
to indicate the number of busses that use the bridge each day, how often they are
delayed and the average time of delay. The additional time needed to use the
alternate bridge should also be addressed.
In sum, the availability of a nearby fixed span bridge, the significant cost and
safety impacts to navigation, the lack of data quantifying the delays to vehicular
and school bus traffic caused by passing marine traffic and the diminution of the
capacity of the GIWW by some 19% suggest that the proposed rule is ill advised.
Kirby Corporation requests that the proposed rule not be promulgated and that the
bridge be required to open upon request for vessel traffic.
Related Comments
Total: 1
William M. Woodruff Public SubmissionPosted: 05/14/2008
ID: USCG-2008-0049-0002
William M. Woodruff
This is comment on Rule
Drawbridge Operation Regulations; Gulf Intracoastal Waterway (GIWW), mile 49.8, near Houma, Lafourche Parish, LA
View Comment
Related Comments
Public Submission Posted: 05/14/2008 ID: USCG-2008-0049-0002
May 12,2008 11:59 PM ET