2010 Lock Maintenance Schedule 
The following Lock Maintenance Schedule for 2010 was released by the U.S. Army Corps of Engineers.
March 8 through March 26, 2010 (19 Days)
HANNIBAL L/D, OHIO RIVER
Replace Land Wall Filling Valve and Operating Machinery
Large Chamber (110’ x 1200’) Open
Small Chamber (110’ x 600’) Closed
Minor Delays to Navigation
April 5 through April 23, 2010 (19 Days)
LOCK 4 ALLEGHENY RIVER
Renovate Emptying Valves and Operating Machinery
Single Chamber (56’ x 360’) Open
Tows restricted to 35’ Width
Intermittent Delays to Navigation
May 3 through May 28, 2010 (26 Days)
EMSWORTH L/D, OHIO RIVER
Dewater 110' x 600' Lock Chamber
Renovate Emptying Valves and Machinery.
Large Chamber (110’ x 600’) Closed
Small Chamber (56’ x 360’) Open
Major Delays to Navigation
June 7 through July 23, 2010 (47 Days)
MONTGOMERY L/D, OHIO RIVER
Emergency Repairs to Dam Gates
Large Chamber (110’ x 600’) Open
Small Chamber (56’ x 360’) Intermittent
Closures, Minor Delays to Navigation
July 6 through July 23, 2010 (18 Days)
LOCK 3, MONONGAHELA RIVER
Replacement of Hydraulic Lines
Large Chamber (56’ x 720’)
Small Chamber (56’ x 360’)
There will be numerous intermittent shutdowns of both lock chambers throughout the work period. In addition, there will be two (2) shutdowns from 8:00 A.M to 4:00 P.M. of both lock chambers. The first 8 hour shutdowns will occur sometime either July 14, 15, or 16; the second 8 hour shutdown will occur either July 21, 22, or 23.
August 2 through September 3, 2010 (33 Days)
BRADDOCK L/D, MONONGAHELA RIVER
Dewater 56' x 360' Lock Chamber
Repair Lock Gates and Anchorages.
Large Chamber (110’ x 720’) Open
Small Chamber (56’ x 360’) Closed
Minor Delays to Navigation
September 13 through September 27, 2010 (15 Days)
LOCK 2, ALLEGHENY RIVER
Dewater and Repair 56’ x 360’ Lock Chamber.
Single Chamber (56’ x 360’) Closed
No River Traffic Can Pass Through Lock
Click here for alert PDF
October 12 through December 3, 2010 (53 Days)
PIKE ISLAND L/D, OHIO RIVER
Dewater 110’ x 1200’ Lock Chamber.
Install New Miter Gates
Large Chamber (110’ x 1200’) Closed
Small Chamber (110’ x 600’) Open
Delays to Navigation