Mahoning Creek Reservoir

Name: Mahoning Creek Reservoir (Pennsylvania) water level
Creator: U.S. Geological Survey

at Mahoning Creek Dam, PA · Pennsylvania · USGS gauge

Water level · NAVD88

1,088.89FT

Gauge elevation · no % full published

7 days −12.35 ft30 days −24.95 ftvs last year −7.89 ft

Reading for Oct 25, 2026, 18:45 UTC · page refreshed Oct 25, 20:24 UTC
Source: U.S. Geological Survey (Water Data for the Nation)

Worth going today?This Afternoon

Looks good

Light wind, dry

Wind2 mph

Rain0%

Temp64°F

Level1,088.9 ft

This AfternoonSunny · 64°F
SW 2 mph · rain 0%

TonightAreas Of Fog · 37°F
0 mph · rain 0%

NWS forecast for the gauge location. Good = wind ≤ 10 mph and rain ≤ 30%; storms are flagged. Not safety advice – check local conditions, closures and warnings.

Field notes

As of Oct 25, 2026, Mahoning Creek Reservoir stood at 1,088.89 (NAVD88) ft.

Over the past 7 days the lake has been falling (−12.35 ft), and it is −24.95 ft over 30 days.

Compared with a year ago (1,096.78 ft, same time of day), the lake is 7.89 ft lower.

Readings come from the USGS gauge “Mahoning Creek Reservoir at Mahoning Creek Dam, PA”. USGS data are provisional and may be revised. Gauge elevations are not directly comparable between lakes because each uses its own datum.

Lake facts

Gauge / station	Mahoning Creek Reservoir at Mahoning Creek Dam, PA
Elevation datum	ft (NAVD88)
Gauge location	40.9217, -79.2778

Nearby lakes

Crooked Creek Lake19 mi SW844.07 ft−1.29 ft Conemaugh Lake32 mi S911.35 ft−4.63 ft Loyalhanna Creek Lake33 mi S924.05 ft−0.95 ft Tionesta Creek Reservoir39 mi N1,088.56 ft−0.97 ft Curwensville Lake39 mi E1,162.20 ft−0.77 ft

Common questions

Is Mahoning Creek Reservoir rising or falling?

Over the last 7 days it changed −12.35 ft and over 30 days −24.95 ft.

How full is Mahoning Creek Reservoir?

USGS publishes the water surface elevation for this gauge but not a percent-full figure, so we don't show one rather than estimate it.

How often is this page updated?

The page is rebuilt automatically every day from USGS's published data. Values can be revised later by the source agency.

Where does the data come from?

The U.S. Geological Survey's Water Data API (api.waterdata.usgs.gov), which publishes readings from USGS and partner gauges. Forecasts come from the National Weather Service.

Latest instantaneous reading; 7-day, 30-day and year-ago changes compare readings at the same hour. USGS data are provisional and subject to revision. USGS data are provisional and subject to revision. This page is not affiliated with or endorsed by the USGS. See data sources.