|NOTICE TO NAVIGATION INTERESTS|
|ST. LOUIS DISTRICT||DATE:||12/19/2014||NOTICE NUMBER: 2027|
1222 SPRUCE STREET
ST. LOUIS MO 63103-2833
||LOCAL NUMBER: PN 13-06
WTRWY/CHNL: UPPER MISSISSIPPI
LOCK(S): MI 27
EFFECTIVE: 06/17/2013 08:00 thru UNTIL FURTHER NOTICE CST
1. All navigation interests are advised that all Northbound tows approaching the main lock chamber at Locks 27 will require the use of an assist vessel to insure proper alignment on the lower guide wall, effective 0800 on 17 June 2013 whenever river stages are above 27’ on the St. Louis gage. This mandate is necessary to prevent misaligned tows from impacting the lower east wall miter gate in the recess during north bound approach. At river stages below 27’ the miter gate has timbers to protect the structural members. The Government will not provide the assist vessel. Please exercise extreme caution during approach to the lock.
2. All navigation interests should be alert for, and abide by, any special instructions that may be issued by the lockmaster.
FOR THE DISTRICT ENGINEER:
Andrew C. Schimpf, P.E.
Rivers Project Manager