Page Last Updated: 23 October 2024
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Page Last Updated: 23 October 2024 |
| ID | Elevation of Instrument in Gage Height |
Elevation of Instrument in Datum |
Period |
| 70707 | 0.10 feet | 929.84 feet NAVD88 | 04/24/2020 -- Current |
| 6848 | 0.10 feet | 929.84 feet NAVD88 | 10/01/2017 -- 04/24/2020 |
| 6848 | 1.15 feet | 928.29 feet M.S.L. | 12/16/1998 -- 09/30/2017 |
| STATUS | Active |
| LOCATION | Located on the Avondale Boulevard bridge crossing of the Gila River |
| DRAINAGE AREA | 42,726 mi2 |
| STREAM TYPE | Natural Stream |
| JURISDICTION | Avondale, Arizona |
| WATERSHED | Lower ACDC / South Mountain |
| SECTION/TOWNSHIP/RANGE | S36 T1N R1W |
| LATITUDE | N 33° 22' 58.2" | +33.38282 |
| LONGITUDE | W 112° 18' 29.2" | -112.30812 |
| ARIZONA STATE PLANE | E 580514 | N 867021 |
| USGS QUAD SHEET | Tolleson 7.5-Minute |
| STREAMGAGE INSTALLATION DATE | 12/16/1998 - WY 1999 |
| PERIOD OF AVAILABLE DATA RECORD | 12/16/1998 - Current |
| LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2024) | 25.79 Years | 9,421 Days |
| GAPS (> 2 DAYS) IN RECORD | None |
| STAGE GAGE TYPE | Pressure Transducer |
| STAGE GAGE ELEVATION | 1.15 feet Gage Height |
| STAFF GAGES | 0 |
| CREST STAGE GAGES | 0 |
| ZERO GAGE HEIGHT ELEVATION | 929.737 feet NAVD88 |
| POINT OF ZERO FLOW | -1.0 feet Gage Height |
| EXTREME FOR PERIOD OF RECORD | 49,394 cfs | 9.15 feet | 02/13/2005 |
| Current Rating = #2 - Applied since 10/01/2017 | ||
| Discharge (cfs) |
Elevation feet, Gage Height |
Elevation feet, NAVD88 |
| 0 | -0.50 | 929.24 |
| 100 | -0.20 | 929.54 |
| 500 | 0.97 | 930.71 |
| 1,000 | 1.64 | 931.38 |
| 2,500 | 2.89 | 932.63 |
| 5,000 | 3.76 | 933.50 |
| 10,000 | 4.81 | 934.55 |
| 25,000 | 6.81 | 936.55 |
| 50,000 | 9.17 | 938.91 |
| 100,000 | 12.30 | 942.04 |
| Water Year |
Peak Gage Height (feet) |
Peak Discharge (cfs) |
Date of Peak |
| 2025 | |||
| 2024 | None | 0 | None |
| 2023 | 8.39 | 40,647 | 03/23/2023 |
| 2022 | None | 0 | None |
| 2021 | None | 0 | None |
| 2020 | None | 0 | None |
| 2019 | 2.82 | 2,403 | 03/16/2019 |
| 2018 | None | 0 | None |
| 2017 | 5.99 | 11,075 | 03/02/2017 |
| 2016 | None | 0 | None |
| 2015 | None | 0 | None |
| 2014 | 2.85 | 1,251 | 09/08/2014 |
| 2013 | None | 0 | None |
| 2012 | None | 0 | None |
| 2011 | None | 0 | None |
| 2010 | 6.95 | 17,638 | 01/23/2010 |
| 2009 | 1.98 | 1,505 | 02/18/2009 |
| 2008 | 3.75 | 4,843 | 02/01/2008 |
| 2007 | None | 0 | None |
| 2006 | None | 0 | None |
| 2005 | 9.15 | 49,394 | 02/13/2005 |
| 2004 | None | 0 | None |
| 2003 | None | 0 | None |
| 2002 | 0.43 | 418 | 11/05/2001 |
| 2001 | None | 0 | None |
| 2000 | 0.25 | 364 | 11/26/1999 |
| 1999 | None | 0 | None |
| Date of Peak |
Time of Peak |
Runoff Start |
Runoff End |
Duration (hours) |
Peak Stage (feet GH) |
Peak Discharge (CFS) |
Water Year |
| View a Plot of These Data | |||||||
| 05/06/2023 | 06:01 | 05/05/2023 12:00 | 05/06/2023 18:00 | 30.0 | 0.54 | 392 | 2023 |
| 03/23/2023 | 23:52 | 03/13/2023 21:51 | 04/20/2023 08:17 | 898.4 | 8.39 | 40,647 | 2023 |
| 03/16/2019 | 06:00 | 03/10/2019 08:36 | 03/22/2019 18:00 | 297 | 2.82 | 2,403 | 2019 |
| 03/02/2017 | 04:27 | 03/01/2017 22:24 | 03/04/2017 08:27 | 58.1 | 5.99 | 11,075 | 2017 |
| 09/08/2014 | 22:52 | 09/08/2014 10:58 | 09/09/2014 19:16 | 32.3 | 2.85 | 1,251 | 2014 |
| 03/15/2010 | 00:16 | 02/23/2010 20:41 | 04/17/2010 04:41 | 1,256 | 5.15 | 6,397 | 2010 |
| 01/23/2010 | 03:20 | 01/22/2010 15:33 | 01/26/2010 01:12 | 81.7 | 6.95 | 17,638 | 2010 |
| 02/18/2009 | 02:54 | 02/17/2009 16:33 | 02/21/2009 17:55 | 97.4 | 1.98 | 1,505 | 2009 |
| 08/05/2008 | 21:07 | 08/05/2008 20:27 | 08/05/2008 21:10 | 0.7 | 1.42 | 960 | 2008 |
| 03/16/2008 | 21:19 | 03/16/2008 15:19 | 03/17/2008 15:19 | 24.02 | 1.52 | 985 | 2008 |
| 03/05/2008 | 03:19 | 02/13/2008 15:19 | 03/13/2008 15:19 | 696 | 2.80 | 2,403 | 2008 |
| 02/01/2008 | 07:45 | 01/23/2008 09:18 | 02/09/2008 15:19 | 414 | 3.75 | 4,843 | 2008 |
| 01/18/2008 | 02:46 | 01/17/2008 09:18 | 01/20/2008 11:56 | 74.6 | 1.40 | 953 | 2008 |
| 03/07/2005 | 01:32 | 03/07/2005 01:32 | 03/07/2005 19:32 | 18.0 | 1.35 | 935 | 2005 |
| 03/01/2005 | 07:32 | 02/28/2005 13:32 | 03/02/2005 22:32 | 57.0 | 1.85 | 1,347 | 2005 |
| 02/22/2005 | 04:32 | 02/20/2005 19:32 | 02/28/2005 07:32 | 180 | 5.35 | 13,326 | 2005 |
| 02/13/2005 | 02:17 | 02/11/2005 14:07 | 02/20/2005 18:52 | 221 | 9.15 | 49,394 | 2005 |
| 01/28/2005 | 02:15 | 01/26/2005 17:00 | 02/03/2005 23:16 | 198 | 4.05 | 5,981 | 2005 |
| 01/13/2005 | 20:15 | 01/12/2005 14:15 | 01/17/2005 11:15 | 117 | 4.25 | 6,828 | 2005 |
| 01/08/2005 | 20:15 | 01/08/2005 14:15 | 01/12/2005 11:15 | 93.0 | 4.15 | 6,397 | 2005 |
| 01/05/2005 | 02:14 | 01/01/2005 11:09 | 01/08/2005 08:15 | 165 | 7.85 | 34,904 | 2005 |
| 11/05/2001 | 10:03 | 11/04/2001 09:27 | 11/06/2001 12:05 | 50.6 | 0.43 | 418 | 2002 |
| 11/23/1999 | 07:04 | 11/23/1999 07:04 | 11/30/1999 23:25 | 184 | 0.25 | 364 | 2000 |
| Flood Flow Frequency View a plot of Flood Frequncy Data ***NOTE: Flood Flow Frequency data are for information only and should not be considered valid for regulation*** Magnitude and Probability of Instantaneous Peak Flow | Discharge, in cfs, for indicated Recurrence Interval |
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| FEMA Flood Insurance Study | |||||||
| 2-year | 5-year | 10-year | 20-year | 50-year | 100-year | 200-year | 500-year |
| ----- | ----- | 57,000 | ----- | 185,000 | 227,000 | ----- | 285,000 |
| USGS StreamStats Flood Flow Frequency | |||||||
| 2-year | 5-year | 10-year | 25-year | 50-year | 100-year | 200-year | 500-year |