Navigation Notices: Illinois River
Periodic Lock Closures Thomas J. O’Brien Lock & Dam Calumet River (IWW) Mile 326.5
Notice Number: 214649 / 815-510-0361 Effective: 07/14/2026 07:00 thru 07/14/2026 17:00 CDT 1. Thomas J. O’Brien Lock will have intermittent closures on Tuesday July 14, 2026, between 0700 and 1700.…
Read MorePeriodic Lock Closures Thomas J. O’Brien Lock & Dam Calumet River (IWW) Mile 326.5
Notice Number: 214649 / 815-510-0361 Effective: 07/14/2026 07:00 thru 07/14/2026 17:00 CDT 1. Thomas J. O’Brien Lock will have intermittent closures on Tuesday July 14, 2026, between 0700 and 1700.…
Read MoreLockport Lock Flow
At time 0700 on 07-09-2026, the flow at Lockport Lock is 8000 CFS. Lockport restrictions are in place until the flow drops below 7000 CFS. Lockport restrictions are: We are…
Read MoreIllinois River Lock Status
Restrictions are dropping as the river falls. I will send any new updates when I get them. (See attached) Per email from Terry Bass (more…)
Read MoreDaily Weather Update – July 6 2026
Please see attached and below weather information. daily Good morning, Weather Highlights Upper Mississippi/Red/Souris: Not as warm this week, but severe thunderstorms remain in the forecast. There is a Slight…
Read MoreHigh Water Conditions – Illinois Waterway
IWW Lock Status High Water 05 July 2026 as reported from Terry Bass IWW Lock Status High Water 05 July 2026 (more…)
Read MoreUSCG BRIDGE OFFICE; JACKSON STREET BRIDGE WORK JUNE 29- JULY 6
There will be some steel work done on the Jackson Street Drawbridge over the Des Plains River next week. The work will start on June 29th and be conducted daily…
Read MoreNAV NOTICE IW 26-213629-6 COMPLETED Mechanical Dredging (Strike Removal), Starved Rock Pool, Bulls Island, RM 240.4-241.7
COMPLETED Mechanical dredging (Strike Removal) operations will commence on the Illinois Waterway, Starved Rock Pool, Bulls Island RM 240.4-241.7 on Monday, April 27th, 2026, at 1200hrs. Dredging will occur Monday…
Read MoreLock Closure Chicago Harbor Lock
Notice Number: 214255 Effective: 06/22/2026 06:00 thru 06/23/2026 10:00 CDT 1. Chicago Harbor Lock will be closed to all traffic on Monday June 22, 2026 from 06:00 until 10:00 and…
Read MoreLock Closure Brandon Road Lock and Dam, RM 286.0
Notice Number: 214229 Effective: 09/21/2026 06:00 thru 04/28/2028 18:00 CDT Brandon Road Lock and Dam, River Mile 286.0 will have weekday (M-F) closures September 21st 2026 through April 28th 2028…
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