ITCS Memo# 2595 - UPDATED ILL. RIVER HIGH WATER ADVISORY

To: RIAC
From: LOMRC Co-Chairman
Date: 8/31/07
Subject: UPDATED ILL. RIVER HIGH WATER ADVISORY
ITCS Memo # 2595

SECTOR UPPER MISSISSIPPI RIVER ISSUES THE FOLLOWING SAFETY
ADVISORY:
A. ZONE 7 (MILES 145.6 - 180.9) ON THE ILR IS IN THE HIGH WATER
RECOVERY PHASE OF THE ILR WAP ANNEX.
B. ZONES 1, 5, AND 6 (MILES 102.0 - 145.5) ON THE ILR ARE IN THE
HIGH WATER WATCH PHASE OF THE ILR WAP ANNEX.
D. DOWNSTREAMING OPERATIONS ARE NOT RECOMMENDED FOR VESSELS
OPERATING IN THE ZONES IN THE ACTION AND WATCH PHASES UNLESS THE
VESSEL IS EQUAL TO OR GREATER THAN 75 FEET IN LENGTH AND THE VESSEL
HAS A MINIMUM OF 1800 HORSEPOWER.
E. ZONES 3 AND 4 (MILES 50.0 - 101.9) ON THE ILR MAY ENTER THE HIGH
WATER WATCH PHASE OVER THE NEXT 2 DAYS DUE TO THE HIGH WATER
CONDITIONS NORTH OF ZONE 4.
F. ALL TOWING VESSELS SHOULD PROCEED AT THE SLOWEST SAFE OPERATIONS
SPEED BASED UPON PREVAILING CONDITIONS IN ORDER TO MINIMIZE WAKE
DAMAGE. ALL MARINERS SHOULD EXCERISE CAUTION IN ZONE 7(BETWEEN
MILES 166.5-178) AND ZONE 6 (BETWEEN MILES 138 - 139.5) ON THE ILR
TO PREVENT ANY WAKE DAMAGE TO WATERSIDE STRUCTURES.
G. DUE TO HIGH RIVER LEVELS, DRIFT OF DEBRIS MAY BE AN ISSUE WITH
NAVIGATION, AND IT MAY DRAG BUOYS OFF STATION AND SEVER BUOYS FROM
THEIR MOORINGS.
H. ALL MARINERS ARE ENCOURAGED TO ENSURE THAT ALL MOORED VESSELS
AND BARGES ARE ADEQUATELY SECURED WITH THE ANTICIPATION OF
INCREASED VELOCITY AND HIGH WATER.
I. COTP UPPER MISSISSIPPI RIVER REMINDS ALL MARINERS TO USE EXTRA
CAUTION AND TO BE ESPECIALLY VIGILANT DURING ALL BRIDGE AND LOCK
APPROACHES IN THESE ZONES DUE TO SWIFT CURRENTS.