Rivermatics

USGS Streamgage 09522500

Gila Gravity Main Canal at Imperial Dam, Az-Ca

Gila Gravity Main Canal at Imperial Dam, Az-Ca is USGS streamgage 09522500 in Arizona, monitoring river discharge in hydrologic subbasin 15030107. Discharge records at this site go back to 1943. Typical flow runs near 1,509.4 cfs in July and 1,326.7 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
Arizona
Gauge elevation
162 ft
Subbasin (HUC-8)
15030107
Coordinates
32.8712, -114.45008
USGS site number
09522500
Records begin
1943-08-16 (83 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 83 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 116.1 471.1 880.4
February 177.5 709.1 1,172.1
March 229.8 1,010.7 1,471.6
April 322.4 1,326.7 1,743.7
May 368.5 1,421.3 1,855.8
June 367.5 1,521.3 1,884.3
July 363.2 1,509.4 1,913.5
August 326.1 1,343.9 1,864.5
September 309.6 1,238 1,696.3
October 256.4 920.9 1,347.4
November 157.6 647.9 1,119.6
December 103.5 487.1 896.2

All values in cubic feet per second (cfs).

Common questions

When does Gila Gravity Main Canal at Imperial Dam, Az-Ca normally run highest?
June, on the long-term record. The median daily flow that month is about 1,521.3 cfs, against 471.1 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Gila Gravity Main Canal at Imperial Dam, Az-Ca?
It depends on the month. In January, half of days historically fall near 471.1 cfs, with the middle 80% of days between 116.1 and 880.4 cfs. The month-by-month table on this page gives the full range.
How long has Gila Gravity Main Canal at Imperial Dam, Az-Ca been measured?
Discharge records at USGS site 09522500 begin in 1943, about 83 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Gila Gravity Main Canal at Imperial Dam, Az-Ca?
The gauge sits at 32.8712, -114.45008, in Arizona, in hydrologic subbasin 15030107, at an elevation of about 162 feet.
Can I use Gila Gravity Main Canal at Imperial Dam, Az-Ca data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other gauges in this subbasin