UMRA (the Upper Monongahela River Association) Requested Lock Operations Hours of Operation OPEKISKA LOCK AND DAM Date Start Time Finish Time Subtotal (hrs) Startup/ Shutdown Time (2 hrs) Total (hrs) 20-May-23 700 1600 9 2 11 OLBC 21-May-23 700 1600 9 2 11 OLBC 4-Jun-23 700 1600 9 2 11 TBF 16-Jun-23 700 1600 9 …