Pennsylvania Lake Levels
Current water level for 29 lakes and reservoirs in Pennsylvania, updated daily from public agency data.
Pennsylvania lake register
Alphabetical current readings from public water agencies
| Lake / reservoirLake / reservoir | Current levelLevel | 7-day change7-day |
|---|---|---|
| Allegheny Reservoir | 1321.40 ft1321.4 ft | -3.59 ft-3.6 ft |
| Aylesworth Creek Lake | 1108.14 ft1108.1 ft | +0.09 ft+0.1 ft |
| Beltzville Lake | 628.91 ft628.9 ft | +0.83 ft+0.8 ft |
| Blue Marsh Lake | 290.84 ft290.8 ft | +0.79 ft+0.8 ft |
| Chambers Lake | 579.86 ft579.9 ft | +0.78 ft+0.8 ft |
| Conemaugh River Lake | 914.42 ft914.4 ft | +10.33 ft+10.3 ft |
| Cowanesque Lake | 1080.25 ft1080.2 ft | +0.02 ft+0.0 ft |
| Crooked Creek Lake | 851.86 ft851.9 ft | +8.72 ft+8.7 ft |
| Curwensville Lake | 1162.53 ft1162.5 ft | +0.20 ft+0.2 ft |
| East Branch Clarion River Lake | 1650.38 ft1650.4 ft | -1.46 ft-1.5 ft |
| First Fork Sinnemahoning Creek Reservoir | 922.27 ft922.3 ft | +0.21 ft+0.2 ft |
| Foster Joseph Sayers Lake | 630.22 ft630.2 ft | +0.15 ft+0.1 ft |
| Francis E. Walter Reservoir | 1314.00 ft1314.0 ft | -41.41 ft-41.4 ft |
| General Edgar Jadwin Reservoir | 989.31 ft989.3 ft | +0.01 ft+0.0 ft |
| Glendale Lake | 1427.50 ft1427.5 ft | +0.10 ft+0.1 ft |
| Hammond Lake | 1086.31 ft1086.3 ft | -0.09 ft-0.1 ft |
| Kettle Creek Reservoir | 842.07 ft842.1 ft | -0.34 ft-0.3 ft |
| Lake Arthur | 1190.09 ft1190.1 ft | -0.10 ft-0.1 ft |
| Loyalhanna Lake | 930.62 ft930.6 ft | +7.55 ft+7.5 ft |
| Mahoning Creek Lake | 1109.42 ft1109.4 ft | +10.34 ft+10.3 ft |
| Prompton Reservoir | 1126.96 ft1127.0 ft | +1.59 ft+1.6 ft |
| Raystown Lake | 786.48 ft786.5 ft | +0.15 ft+0.1 ft |
| Shenango River Lake | 894.89 ft894.9 ft | -0.02 ft-0.0 ft |
| Stillwater Lake | 1574.18 ft1574.2 ft | -3.79 ft-3.8 ft |
| Struble Lake | 617.27 ft617.3 ft | +0.34 ft+0.3 ft |
| Tioga Lake | 1081.24 ft1081.2 ft | -0.33 ft-0.3 ft |
| Tionesta Lake | 1089.78 ft1089.8 ft | -0.71 ft-0.7 ft |
| Woodcock Creek Lake | 1166.23 ft1166.2 ft | -4.25 ft-4.2 ft |
| Youghiogheny River Lake | 1438.91 ft1438.9 ft | +0.35 ft+0.3 ft |
Scroll across the table for all readings →
Pennsylvania lake levels: common questions
Are Pennsylvania lakes low right now?
1 of the 20 Pennsylvania lakes with enough history to compare is in the bottom quarter of its own October record. That seasonal comparison matters more than the raw level: reservoirs are drawn down on a schedule, so a lake several feet below full pool in October may still be entirely normal for the date.
Which Pennsylvania lake has changed most this week?
Mahoning Creek Lake has risen the most, +10.34 ft over seven days, and Francis E. Walter Reservoir has fallen the most at -41.41 ft.
How often do Pennsylvania lake levels update?
Each gauge publishes on its own schedule. Most report at least daily, some hourly. This page is rebuilt every day from the U.S. Army Corps of Engineers and the U.S. Geological Survey, and the number on an individual lake's page refreshes again in your browser when the agency posts a newer reading. Readings are provisional and can be revised.