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Tionesta Creek Reservoir at Tionesta Creek Dam water level

Reservoir, Tionesta Creek Reservoir, Pennsylvania, United States

Directions

Right now

Low for mid-October

Surface elevation

1,089.38ft Down 0.11 ft over the last 24 hours

1,100 1,125 1,150 1,175 Minor floodstage 1,169.00 ft

History

History
1,0901,0911,092ftOct 16Oct 17Oct 18Oct 19Oct 211,0901,0911,092ftOct 16Oct 18Oct 21
1,0901,0921,094ftSep 22Sep 29Oct 6Oct 13Oct 211,0901,0921,094ftSep 22Oct 6Oct 21
1,1001,120ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20261,1001,120ftOct 2025Apr 2026Oct 2026
1,1001,1251,1501,175ftOct 2020Apr 2022Oct 2023Apr 2025Oct 2026Minor flood stage1,1001,1251,1501,175ftOct 2020Oct 2023Oct 2026Minor flood stage
1,1001,1201,140ftJanMarMayJulSepNov20261,1001,1201,140ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %) Minor flood stage

What this means

Tionesta Creek Reservoir at Tionesta Creek Dam is below normal for mid-October, with the lake level at 1,089.38 ft.

That puts it 0.45 ft below the median of 1,089.83 ft for mid-October, based on 7 years of readings. It is 79.62 ft below the flood stage of 1,169.00 ft. A year ago it stood at 1,090.75 ft (−1.37 ft).

It has dropped 0.11 ft over the past 24 hours. With the water still dropping, the shoreline keeps moving out. In the last month it has stayed between 1,089.29 ft and 1,092.93 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
1,089.83 ft0.45 ft below the median for this date
Normal for this date
1,089.22 ft – 1,092.15 ft8 years in 10 fall in this range (7 years of records)
Same day last year
1,090.75 ft−1.37 ft
Lowest and highest in 30 days
1,089.29 ft – 1,092.93 ft
Lowest and highest in 12 months
1,086.91 ft – 1,119.61 ft

On the water at Tionesta Creek Reservoir at Tionesta Creek Dam

A receding shoreline opens up beaches but also uncovers hazards: stumps, rocks and soft mud that are usually well under water.

Wear a life jacket on the water. Most boating deaths involve people who were not wearing one.

Weather at the gauge

No rain in the last 3 days.

20 Tue 69° 35° – Wind 7 mph
21 Wed 65° 35° – Wind 6 mph
22 Thu 64° 36° – Wind 9 mph
23 Fri 60° 40° – Wind 5 mph
24 Sat 61° 37° – Wind 5 mph
25 Sun 64° 39° – Wind 6 mph
26 Mon 65° 45° – Wind 6 mph

Forecast: Open-Meteo

Sunrise 07:37 AM Sunset 06:29 PM Daylight 10 hr, 52 min Waxing gibbous 73%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Tionesta Creek at Tionesta Creek DamRiver gauge, Tionesta Creek 1.25 ft Below flood stage ±0 0.4 mi
Allegheny River at West HickoryRiver gauge, Allegheny River 3.87 ft Below flood stage −0.02 ft 7 mi
Oil Creek at RousevilleRiver gauge, Oil Creek 2.13 ft Below flood stage −0.03 ft 13 mi
Clarion River at CooksburgRiver gauge, Clarion River 2.48 ft Below flood stage −0.06 ft 15 mi
Clarion River near PineyRiver gauge, Clarion River 234 cfs Low −17.0 cfs 19 mi
Allegheny River at FranklinRiver gauge, Allegheny River 3.50 ft Below flood stage −0.01 ft 21 mi
Tionesta Creek at LynchRiver gauge, Tionesta Creek 73.5 cfs Normal −2.2 cfs 22 mi
French Creek at UticaRiver gauge, French Creek 416 cfs Normal −16.0 cfs 27 mi

Questions and answers

How does Tionesta Creek Reservoir at Tionesta Creek Dam compare with last year?

It is 1.37 ft lower than on the same day last year, when the reading was 1,090.75 ft.

What is a normal level for Tionesta Creek Reservoir at Tionesta Creek Dam in mid-October?

The median for mid-October is 1,089.83 ft. In 8 years out of 10 the reading falls between 1,089.22 ft and 1,092.15 ft, based on 7 years of records.

Is Tionesta Creek Reservoir at Tionesta Creek Dam really 1,089.38 ft deep?

No. 1,089.38 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Tionesta Creek Reservoir at Tionesta Creek Dam today?

On Oct 20, 2026, 09:45 PM EDT, the surface elevation was 1,089.38 ft. Down 0.11 ft over the last 24 hours.

Is Tionesta Creek Reservoir at Tionesta Creek Dam rising or falling?

Down 0.11 ft over the last 24 hours. Down 0.29 ft over the last 7 days.

Is the level of Tionesta Creek Reservoir at Tionesta Creek Dam normal?

Low for mid-October. Compared with 7 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:03019500 (Agency page)
Coordinates
41.47367, -79.43866 (WGS84)
Vertical datum
NAVD88
Update interval
every 15 minutes
Licence
Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 1,089.38 ft 2026-10-21 01:45 Provisional

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How to cite

U.S. Geological Survey: Tionesta Creek Reservoir at Tionesta Creek Dam (usgs:03019500). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/pennsylvania/tionesta-creek-reservoir-at-tionesta-creek-dam

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.