Blue Marsh Lake water level
Source: waterdata.usgs.gov/monitoring-location/USGS-01470870, accessed October 1, 2026. Updated every 6 hours.
Blue Marsh Lake's elevation is 290.29 ft as of September 29, 2026. Blue Marsh Lake is near Bernville, Pennsylvania.
Blue Marsh Lake level history
Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.
Elevation, ft, since 2004
Blue Marsh Lake is rising: 290.4 ft, up 0.12 ft since September 27, 2026.
On this same date last year (September 28, 2025), Blue Marsh Lake was 286.63 ft, 3.77 ft lower than today's 290.4 ft.
Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).
Blue Marsh Lake map
Blue Marsh Lake is at 40.3793, -76.0327. Open in OpenStreetMap.
The dam
- Flood control
- Recreation
- Water supply
Sources: nid.sec.usace.army.mil, accessed September 29, 2026 , recreation.gov/camping/gateways/195, accessed September 29, 2026
Data source: Recreation.gov
On the water
No campgrounds, boat ramps, or swim spots linked to Blue Marsh Lake yet.
Common questions
- Blue Marsh Lake's elevation is 290.29 ft as of September 29, 2026.
- In USGS daily data since September 30, 2004, Blue Marsh Lake's highest elevation was 309.37 ft on September 8, 2011. Its lowest since September 30, 2004 was 281.9 ft on September 27, 2010. These are the highest and lowest daily readings in the published data, not official records.
- Blue Marsh Lake is near Bernville, Pennsylvania (40.3793, -76.0327).
- US Army Corps of Engineers operates the dam at Blue Marsh Lake.
- Blue Marsh Lake's dam is used for Flood control, Recreation, Water supply.