Colorado River below Hoover Dam water level

Name: Colorado River below Hoover Dam water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Colorado River, Nevada, United States

Directions

Latest reading

Water level

43.75ft Up 0.36 ft over the last 24 hours

Measured Oct 18, 2026, 02:40 AM PDT (18 min ago)

History

7 days 30 days 1 year

Water level

What this means

The Colorado River below Hoover Dam reads 43.75 ft as of Oct 18, 2026, 02:40 AM PDT. The agency publishes no normal range or warning level for this river yet, so there is nothing to judge the number against.

It has risen 0.36 ft over the past 24 hours. In the last month it has stayed between 40.09 ft and 49.18 ft.

Over the past seven days the change adds up to +1.32 ft.

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

Key numbers

Lowest and highest in 30 days: 40.09 ft – 49.18 ft
Lowest and highest in 12 months: 42.25 ft – 48.25 ft

Floating and fishing near Colorado River below Hoover Dam

Use the recent trend as your guide, and ask locally which gage height makes for a good float.

Weather at the gauge

The forecast is not available right now.

Sunrise 06:49 AM Sunset 06:00 PM Daylight 11 hr, 11 min First quarter 48%

Map

Other gauges on the Colorado River

Gauge	Level	Compared with normal	24 hours	Distance
Colorado River near Grand CanyonRiver gauge, Colorado River	5,770 cfs	Low	+90.0 cfs	148 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Lake MeadLake	1,037.43 ft	Very low		0.1 mi
Lv Wash below Lake Las Vegas near Boulder CityRiver gauge, Lv Wash	350 cfs	Very high	−5.0 cfs	12 mi
Lv Wash above Three Kids Wash below HendersonRiver gauge, Lv Wash	329 cfs	High	−7.0 cfs	13 mi
Lv Wash above Homestead Weir near HendersonRiver gauge, Lv Wash	278 cfs	Low	−8.0 cfs	13 mi
C-1 Channel above Mouth near HendersonRiver gauge, C-1 Channel	0.0 cfs	Normal	±0	14 mi
Las Vegas Wash at Pabco Road near HendersonRiver gauge, Las Vegas Wash	290 cfs	High	−7.0 cfs	15 mi
Lv Wash below Duck Creek Confluence near HendersonRiver gauge, Lv Wash	246 cfs	Very low	±0	16 mi
Duck Creek at Broadbent Blvd at E Las VegasRiver gauge, Duck Creek	9.4 cfs	Normal	±0	17 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Colorado River below Hoover Dam today?

On Oct 18, 2026, 02:40 AM PDT, the water level was 43.75 ft. Up 0.36 ft over the last 24 hours.

Is Colorado River below Hoover Dam rising or falling?

Up 0.36 ft over the last 24 hours. Up 1.32 ft over the last 7 days.

Is the level of Colorado River below Hoover 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:09421500 (Agency page)
Coordinates: 36.01526, -114.73859 (WGS84)
Vertical datum: NGVD29
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	43.75 ft	2026-10-18 09:40	Provisional

Download

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How to cite

U.S. Geological Survey: Colorado River below Hoover Dam (usgs:09421500). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/nevada/colorado-river-below-hoover-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.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer