McAlpine Lock Closure (OR 606) – The North (river) chamber will be closed from March 30th thru April 30th for miter gate repairs. All traffic should utilize the South (land) Chamber during this time.
Markland Lock Closure (OR 531.5) – Beginning March 9th thru April 17th, the primary chamber will be closed for repairs to the miter gate. All traffic will utilize the auxiliary chamber.
Emsworth Lock Closures (OR 6.2) – Beginning April 27th thru Sept. 4th, the auxiliary chamber will be closed daily from 0600 to 2359, and the primary chamber will have intermittent closures for filling valve maintenance.
C.W. Bill Young Lock Closure (AR 14.5) – The Allegheny River lock will be closed for maintenance from March 16th thru April 10th. A full river closure will be in effect during this period.
Chicago/Illinois/Upper Miss
2026 Planned Illinois River Lockport Closure – Closure of the Lockport Lock, River Mile 291, starting March 31st, 2026, thru May 19th, 2026. Click here for our full guidance.
Illinois River Lockport Re-Opening – ACBL has distributed our annual guidance for accepting release dates above Lockport Lock. Click here for our full guidance.
Lower Miss/Gulf/Canals/Tenn Tom
Lower Miss Operational Impact –
Due to the current river stage and operating conditions, ACBL has implemented draft restrictions listed below.
Loading drafts are not currently reduced NBD Gulf to Cairo.
Tow size has been reduced pending horsepower classification by 14% (5 barges)
Normal Water Stages:
Caruthersville to Memphis (LM 869- 725): 20′ – 5′
Memphis to Vicksburg (LM 725 – 439): 40′ – 20′
Vicksburg to Natchez (LM 439- 303): 30′ – 10′
Low Water Stages:
Caruthersville to Memphis (LM 869- 725): Below 5′
Memphis to Vicksburg (LM 725 – 439): Below 20′
Vicksburg to Natchez (LM 439- 303): Below 10′
For current river stage information, please refer to the links at the bottom of this page.
Harvey Canal Closures (LM 98.3) – Daily closures will occur March 6th thru April 6th, seven days a week, from 0700–1100 and 1300–1800, to complete emergent water line repairs near the Lapalco Sector Gate.
Port Allen Channel Closures (PA 63.7) – Daily closures from 0700-1800, March 16th thru March 20th, for demolition of the old LA Hwy 1 Bridge.
Inner Harbor Navigation Canal Lock (Industrial Canal Lock EC 1) – Beginning March 16th, instillation of barges moored end-to-end to pilings in the area to protect the St. Claude Ave bridge piers. More info to come.
Brazos Lock Closure (WC 401) – Closures are scheduled to begin in early April, Monday-Friday, between 1800 and 0600, to allow for repair work.
Calcasieu Lock North Chamber Wall Replacement (WC 238) – Beginning in May 2026, the Calcasieu Lock will have daytime closures Monday thru Friday, expected to last approximately six months.
