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Imperial Reservoir at Imperial Dam water level

Reservoir, Imperial Reservoir, Arizona, United States

Directions

Right now

Latest reading

Water level

180.17ft Down 0.46 ft over the last 24 hours

150 175 200

History

History
180.2180.4180.6ftOct 16Oct 17Oct 18Oct 19Oct 21180.2180.4180.6ftOct 16Oct 18Oct 21
Water level

What this means

Imperial Reservoir at Imperial Dam reads 180.17 ft as of Oct 20, 2026, 05:45 PM MST. The agency publishes no normal range or warning level for this reservoir yet, so there is nothing to judge the number against.

It has dropped 0.46 ft over the past 24 hours. In the last month it has stayed between 180.09 ft and 180.70 ft.

Over the past seven days the change adds up to −0.30 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

On the water at Imperial Reservoir at Imperial Dam

Watch the chart rather than the single number; it shows whether the shoreline is moving.

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 92° 67° – Wind 10 mph
21 Wed 92° 71° – Wind 17 mph
22 Thu 83° 65° – Wind 22 mph
23 Fri 80° 61° – Wind 13 mph
24 Sat 83° 65° – Wind 5 mph
25 Sun 88° 68° – Wind 11 mph
26 Mon 89° 69° – Wind 14 mph

Forecast: Open-Meteo

Sunrise 06:47 AM Sunset 05:59 PM Daylight 11 hr, 12 min Waxing gibbous 73%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Mittry Lake Diversion at Imperial DamRiver gauge, Mittry Lake Diversion 10.5 cfs Low ±0 0.4 mi
Gila Gravity Main Canal at Imperial DamCanal gauge, Gila Gravity Main Canal 1,320 cfs High +321 cfs 1.1 mi
Colorado River below Imperial DamRiver gauge, Colorado River 228 cfs Normal −12.0 cfs 1.2 mi
All-American Canal near Imperial DamCanal gauge, All-American Canal 3,890 cfs Very low −1,280.0 cfs 1.3 mi
Reservation Main Canal near YumaCanal gauge, Reservation Main Canal 63.9 cfs Normal −14.9 cfs 5.4 mi
Colorado River below Laguna DamRiver gauge, Colorado River 355 cfs Low −14.0 cfs 5.7 mi
North Gila Main Canal near YumaCanal gauge, North Gila Main Canal 68.2 cfs Normal +26.9 cfs 5.8 mi
Gila River near DomeRiver gauge, Gila River 14.90 ft Below flood stage +0.30 ft 9 mi

Questions and answers

What is the water level of Imperial Reservoir at Imperial Dam today?

On Oct 20, 2026, 05:45 PM MST, the water level was 180.17 ft. Down 0.46 ft over the last 24 hours.

Is Imperial Reservoir at Imperial Dam rising or falling?

Down 0.46 ft over the last 24 hours. Down 0.30 ft over the last 7 days.

Is the level of Imperial Reservoir at Imperial Dam normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

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.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:09429495 (Agency page)
Coordinates
32.88289, -114.46281 (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
Water level 180.17 ft 2026-10-21 00:45 Provisional

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Embed this gauge

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How to cite

U.S. Geological Survey: Imperial Reservoir at Imperial Dam (usgs:09429495). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/arizona/imperial-reservoir-at-imperial-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.