The following is from the CG 9th District NTM 15/13.

From April 15 through May 30, 2013 between the hours of 0700 an 1700, Monday through Saturday, an 80 foot by 28 foot barge will be working
under the 92nd Street Bridge at Mile 0.76 over the Calumet River. The barge will move to accommodate vessels if a 2-hour advance notice is
provided directly to the bridge on VHF-FM Marine Radio Channel 16. When the bridge is in the open position workers will be suspended on swing scaffolding. Spotters will warn workers of approaching vessels but mariners should use caution when transiting the bridge throughout the maintenance period.

The following is from the CG 9th District NTM 15/13.

From March 4 through May 10, 2013 between the hours of 0700 an 1900 daily, a 32 foot by 24 foot barge will be working under the 95th Street
Bridge at Mile 1.09 over the Calumet River. The barge will move to accommodate vessels if a 2-hour advance notice is provided directly to the S
and J barge on VHF-FM Marine Radio Channel 16.

The following is from the CG 9th District NTM 14/13.

The Coast Guard has received a report of a section of submarine cable sticking up from the bottom of the river underneath the draw of the 100th
Street Bridge at Mile 1.78 over the Calumet River. The cable was reported to be approximately 4 feet above mudline, inside the navigational
channel near the west bulkhead of the bridge.

The following is from the CG 8th District NTM 14/13.

Commencing approximately 6:00 a.m., April 16, 2013 and continuing until approximately 6:00 p.m., May 22, 2013, the Pickwick L/D (Main
Chamber) in the vicinity of Mile 206.7, will be closed for repairs. During this closure, the auxiliary lock will be available to pass traffic. Questions
regarding this closure should be addressed to the USACE Navigation Branch at (615) 736-5607.

The following is from the CG 9th District NTM 16/13.

The Luedtke Engineering Company will be dredging in Calumet River, Calumet, Illinois. Mariners are urged to use caution when navigating around the east side of the river, and approximately 150 feet south of the 106th Street Bridge. Dredging will commence April 22nd, 2013 thru May 4th 2013 the hours of operation are 12 hours a day, Monday through Saturday. The work will require that divers are in the water to rig the blocks for lifting. A minimum of a 2-hour notice is required for any passing vessels so that divers have time to get out of the water and move equipment as necessary. The TUG ANN MARIE or DERRICK BARGE #10 may be contacted on VHF-FM channels 16 and 19. For further information contact Jon Keillor (231) 352-9631 ext. 15.

The following is from the CG 8th District (Rivers) NTM 33/12. Note that the channel is not marked on the charts.

Due to low water, an alternate 300-foot wide channel has been established along the Kentucky bank at Olmstead L/D, in the vicinity of Mile 962.6.
The elevation is approximately 269 feet. When L/D 53, has a lower gauge reading of 6.9 feet, the 300 foot lane will have a 9.0 draft restriction.
For on-scene information and direction, contact the M/V GORDON STEVENS or the M/V LIBSCOMB via VHF-FM Channel 16 or at (270) 748-2596.

Two nun buoys marking a turn in the vicinity of Mile 282.0, have been reported missing. Mariners are urged to exercise caution in the area.

Nav aids are reportedly off station between miles 98.6 - 95.8, 92.8 - 90.6, 82.3 - 79.4, 78.7 - 75.7, 72.8 - 72.0.

Commencing 6:00 a.m., May 20, 2013 and continuing until approximately 10:00 a.m., May 23, 2013, the Cheatham L/D in the vicinity of Mile 148.7
will be closed for maintenance.

The following is from the CG 9th District NTM 18/13.

Due to hazards associated with salvage operations, the United States Coast Guard has implemented a safety zone on the Illinois River. This
safety zone is in effect from April 26, 2013 thru May 31, 2013. All vessels are prohitied from entering, transiting, or anchoring within the safety
zone without approval of the Captain of the Port. Mariners intending to transit any protion of the safety zone must contact the Captain of the
Port at (630) 336-0300 or via VHF channel 16. Marinersa are urged to use extreme caution when transiting this waterway.