URGENT Lock Information & Updates

We have been informed that all locks on the Upper Allegheny River (Locks 5, 6, 7, 8 & 9)  have returned to normal operational status as of today, Thursday, June 1, 2017.  Please refer to our Lock Operations Schedule page for specific information on lock operations days and hours.

ADDITIONAL LOCK CLOSURE INFORMATION - mAY 29,2017 - NOON
Unfortunately, the bad news just keeps coming. AR Locks 5, 8 & 9 will be out of service due to high water. They join Lock 6 which is out of service due to aN hydraulic oil leak. Lock 5 is at 16.7 feet and rising. Lock 8 is at 14.6 feet and rising. Lock 9 is at 15.8 feet and rising. All water levels, with the exception of Lock 7 are at action stage. We will inform you as soon as water levels return to acceptable and SAFE levels. We appreciate your understanding of the importance of the safety issues associated with these closings, AND APOLOGIZE FOR ANY INCONVENIENCE. 


IMPORTANT INFORMATION - SUNDAY - MAY 28, 2017 - 1:00 PM
AR LOCK 6 AT CLINTON WILL BE CLOSED UNTIL FURTHER NOTICE DUE TO A HYDRAULIC OIL LEAK.
USACE will begin repairs when a full maintenance crew can be assembled and dispatched.
We will let you know when the lock is back in service. 


Information for Lock 9 Boaters from USACE - Pittsburgh District

Allegheny Lock and Dam 9, Allegheny River Mile 62.2, Installation of Flashboards
1. TO WHOM IT MAY CONCERN: Allegheny Hydro LP, plan to install the temporary flashboard system,
river conditions permitting, on Lock and Dam 9, Allegheny River from May 1, through May 31, 2017. The
flashboard installation will be accomplished between the hours of 6:00 AM and 6:00 PM daily.


2. In association with this work, the upper pool will be temporarily drawn down by the hydropower project
approximately to elevation 821.7 to permit installation of steel bars and timber boards across the crest of the
dam. This elevation equates to an upper pool gage reading of 8.5 or a water level at 0.5 feet below the crest of
the dam. This will result in a total change of approximately 1-foot below the normal pool level.


3. Navigators are cautioned to travel within the limits of the navigation channel during this temporary
lowering of the upper pool. In addition, marina owners and owners of private docking facilities upstream of
the dam may be temporarily affected by this work and the associated pool draw down.


4. The temporary flashboard system is being installed to augment the upper pool elevation to obtain prehydro project conditions for environmental and recreation purposes. The temporary flashboard system will consist of 2" x 15" oak timbers secured to the crest of the dam using steel bars and U-bolts. The flashboard system will be installed and maintained by Allegheny Hydro LP until October 2017.


2017 Recreational Boating Season
From time to time, because of the age and condition of the locks, USACE encounters some
unexpected issues that required immediate attention.
When these disruptions do happen, USACE will inform ARDC of the issue, and in turn, we will post the notification on this page, as well as on our Facebook page at Allegheny River Development Corporation.
 
To ensure a pleasant boating experience, please check either resources before your anticipated lock use.
 
Be safe and enjoy the beautiful Allegheny River.