Stoneridge Dam - ID # 77307

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Page Last Updated: 04 November 2025

ID History | Site Data | Brief Rating | Water Year Peaks | Impound History

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GAGE ID AND DATUM HISTORY

ID Elevation of
Instrument
in Gage Height		 Elevation of
Instrument
in Datum		 Period
       
77307 1.30 feet 1,682.24 feet NAVD88 04/29/2020 -- Current
5968 1.30 feet 1,682.24 feet NAVD88 10/01/2016 -- 04/29/2020
5968 0.87 feet 1,679.73 feet M.S.L. 12/11/1996 -- 09/30/2016

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SITE DATA

STATUS Active
LOCATION About 1/2 mile north of Shea Boulevard, west of Fountain Hills Boulevard
DRAINAGE AREA 0.89 mi2
STREAM TYPE Dam of natural drainage
JURISDICTION Fountain Hills, Arizona
WATERSHED Lower Verde
SECTION/TOWNSHIP/RANGE S22 T3N R6E
LATITUDE N 33° 35' 40.1"  |  +33.59448
LONGITUDE W 111° 44' 00.0"  |  -111.73332
ARIZONA STATE PLANE E 755863  | N 943908
USGS QUAD SHEET Granite Reef Dam 7.5-Minute
STREAMGAGE INSTALLATION DATE 12/11/1996 - WY 1997
PERIOD OF AVAILABLE DATA RECORD 12/11/1996 - Current
LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2024) 27.80 Years | 10,156 Days
GAPS (> 2 DAYS) IN RECORD None
STAGE GAGE TYPE Pressure Transducer
STAGE GAGE ELEVATION 1.30 feet Gage Height
STAFF GAGES 0
CREST STAGE GAGES 0
ZERO GAGE HEIGHT ELEVATION 1,680.935 feet NAVD88
POINT OF ZERO FLOW 0.00 feet Gage Height
SPILLWAY CREST ELEVATION 24.0 feet Gage Height
TOP OF DAM ELEVATION 31.0 feet Gage Height

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BRIEF RATING

Current Discharge Rating = #1 - Applied since 12/11/1996
Current Capacity Rating = #1 - Applied since 12/11/1996
Gage
Height
(feet)		 Elevation
(feet NAVD88)		 Discharge
(cfs)		 Volume
(acre-feet)
0.00 1,680.94 0 0.0
5.00 1,685.94 45 0.7
10.00 1,690.94 70 8.0
15.00 1,695.94 85 18.0
20.00 1,700.94 94 45.0
24.00 1,704.94 100 66.0
25.00 1,705.94 435 76.0
26.80 1,707.74 1,540 92.3
31.00 1,711.94 5,225 No Data

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WATER YEAR PEAKS

Water
Year		 Peak
Gage Height
(feet)		 Peak
Volume
(acre-feet)		 Percent
Full
(Available Storage Capacity)		 Date of
Peak
2026        
2025 5.06 0.7 1.4 06/26/2025
2024 None 0.0 0.0 None
2023 2.43 0.3 0.5 10/15/2022
2022 3.05 0.4 0.6 08/12/2022
2021 10.48 9.0 13.6 08/13/2021
2020 4.02 0.5 0.9 02/10/2020
2019 7.40 2.6 4.1 10/02/2018
2018 6.19 1.5 2.3 08/10/2018
2017 1.25 0.0 0.0 07/24/2017
2016 6.33 1.6 2.4 08/09/2016
2015 1.42 0.0 0.0 07/31/2015
2014 5.00 0.7 1.4 09/08/2014
2013 1.87 0.2 1.2 03/08/2013
2012 1.80 0.1 0.2 08/23/2012
2011 2.27 0.2 0.3 08/18/2011
2010 2.17 0.2 0.3 01/21/2010
2009 None 0.0 0.0 None
2008 4.87 0.7 1.1 08/28/2008
2007 None 0.0 0.0 None
2006 2.12 0.2 0.3 08/11/2006
2005 4.72 0.6 0.9 08/02/2005
2004 2.00 0.2 0.3 09/03/2004
2003 1.55 0.1 0.2 02/14/2003
2002 2.38 0.2 0.3 09/10/2002
2001 5.82 1.2 1.8 07/29/2001
2000 3.50 0.6 0.9 02/21/2000
1999 4.67 0.6 0.9 07/23/1999
1998 2.13 0.2 0.3 02/24/1998
1997 (partial) 1.09 <0.1 0.0 08/26/1997

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IMPOUNDMENT EVENT HISTORY

Date of
Peak		 Time of
Peak		 Runoff
Start		 Runoff
End		 Duration
(hours)		 Peak
Stage
(feet GH)		 Peak
Volume
(acre-feet)		 Water
Year
View a Plot of These Data
               
09/26/2025 14:44 09/26/2025 12:00 09/26/2025 17:52 5.9 5.06 0.7 2025
10/15/2022 18:16 10/15/2022 12:00 10/15/2022 19:00 7.0 2.43 0.3 2023
08/12/2022 15:54 08/12/2022 15:20 08/12/2022 17:21 2.0 3.05 0.4 2022
08/16/2021 22:55 08/16/2021 22:52 08/16/2021 23:16 0.4 2.28 0.2 2021
08/13/2021 22:34 08/13/2021 21:36 08/14/2021 00:08 2.5 10.48 9.0 2021
08/11/2021 08:32 08/11/2021 06:40 08/11/2021 10:01 3.4 7.09 2.1 2021
08/11/2021 07:00 08/11/2021 06:40 08/11/2021 10:01 3.4 3.87 0.5 2021
07/23/2021 10:52 07/23/2021 10:34 07/23/2021 11:11 0.6 1.95 0.2 2021
02/10/2020 19:23 02/10/2020 19:02 02/11/2020 00:00 5.0 4.02 0.5 2020
09/23/2019 08:10 09/23/2019 07:47 09/23/2019 21:42 13.9 5.82 1.2 2019
10/02/2018 19:17 10/02/2018 18:50 10/02/2018 21:00 2.2 7.40 2.6 2019
08/12/2018 18:00 08/12/2018 17:54 08/12/2018 18:45 0.9 1.93 0.2 2018
08/10/2018 22:48 08/10/2018 22:22 08/11/2018 01:28 3.1 6.19 1.5 2018
08/08/2018 19:52 08/08/2018 19:30 08/08/2018 21:49 2.3 5.07 0.7 2018
07/30/2018 20:07 07/30/2018 20:04 07/30/2018 20:38 0.6 2.68 0.3 2018
07/14/2018 15:31 07/14/2018 15:30 07/14/2018 15:57 0.5 1.60 0.1 2018
07/24/2017 06:53 07/24/2017 06:53 07/24/2017 06:57 0.1 1.25 0.1 2017
08/09/2016 13:00 08/09/2016 12:12 08/09/2016 14:55 2.7 6.33 1.6 2016
07/31/2015 15:08 07/31/2015 15:08 07/31/2015 15:44 0.6 1.42 0.0 2015
09/27/2014 16:37 09/27/2014 14:55 09/27/2014 20:01 5.1 3.02 0.4 2014
09/08/2014 03:03 09/08/2014 02:43 09/08/2014 09:20 6.6 5.00 0.7 2014
03/01/2014 18:43 03/01/2014 17:37 03/02/2014 00:15 6.6 2.54 0.3 2014
03/01/2014 15:20 03/01/2014 15:17 03/01/2014 15:48 0.5 1.80 0.1 2014
11/22/2013 04:53 11/22/2013 04:46 11/22/2013 05:04 0.3 1.32 <0.1 2014
08/28/2013 21:16 08/28/2013 21:14 08/28/2013 22:44 1.5 1.24 <0.1 2013
03/08/2013 13:22 03/08/2013 13:08 03/09/2013 02:56 13.8 1.87 0.2 2013
08/23/2012 02:50 08/23/2012 02:43 08/23/2012 05:55 3.2 1.80 0.1 2012
09/13/2011 21:26 09/13/2011 21:26 single report 0.0 1.32 0.0 2011
08/18/2011 20:32 08/18/2011 20:27 08/18/2011 22:40 2.2 2.27 0.2 2011
10/05/2010 14:01 10/05/2010 14:00 10/05/2010 14:19 0.3 1.90 0.2 2011
01/21/2010 21:05 01/21/2010 20:58 01/21/2010 21:37 0.7 2.17 0.2 2010
08/28/2008 23:34 08/28/2008 22:49 08/29/2008 01:47 3.0 4.87 0.7 2008
08/25/2008 22:59 08/25/2008 22:51 08/25/2008 23:42 0.9 1.20 <0.1 2008
01/28/2008 04:34 01/28/2008 04:22 01/28/2008 05:06 0.7 1.17 <0.1 2008
08/11/2006 23:39 08/11/2006 23:35 08/12/2006 00:34 1.0 2.12 0.2 2006
10/17/2005 15:36 10/17/2005 15:35 10/17/2005 16:23 0.8 1.42 <0.1 2006
08/02/2005 21:25 08/02/2005 21:17 08/03/2005 03:17 6.0 4.72 0.6 2005
02/18/2005 16:27 02/18/2005 16:18 02/18/2005 16:40 0.4 1.54 0.1 2005
02/11/2005 22:39 02/11/2005 22:31 02/12/2005 03:01 4.5 1.87 0.2 2005
01/26/2005 16:43 01/26/2005 16:34 01/26/2005 19:46 3.2 1.62 0.1 2005
01/04/2005 03:23 01/04/2005 03:16 01/04/2005 04:43 1.5 2.64 0.3 2005
12/29/2004 10:32 12/29/2004 10:32 single report 0.0 1.27 <0.1 2005
09/19/2004 05:21 09/19/2004 05:10 09/19/2004 05:40 0.5 1.97 0.2 2004
09/03/2004 17:38 09/03/2004 17:37 09/03/2004 18:00 0.4 2.00 0.2 2004
03/05/2004 03:39 03/04/2004 18:33 03/05/2004 05:05 10.5 1.87 0.2 2004
08/14/2003 20:08 08/14/2003 20:05 08/14/2003 20:08 0.1 1.25 <0.1 2003
02/14/2003 00:12 02/13/2003 23:52 02/14/2003 02:52 3.0 1.55 0.1 2003
02/13/2003 14:57 02/13/2003 14:47 02/13/2003 15:12 0.4 1.42 <0.1 2003
09/10/2002 19:11 09/10/2002 19:11 09/10/2002 21:01 1.8 2.38 0.2 2002
07/29/2001 22:43 07/29/2001 21:54 07/30/2001 00:41 2.8 5.82 1.2 2001
03/07/2001 10:06 03/07/2001 09:57 03/07/2001 10:06 0.2 0.95 <0.1 2001
10/30/2000 20:19 10/30/2000 19:58 10/30/2000 20:37 0.7 1.10 <0.1 2001
10/27/2000 15:42 10/27/2000 15:31 10/27/2000 16:18 0.8 4.43 0.9 2001
02/21/2000 18:17 02/21/2000 18:09 02/21/2000 18:44 0.6 3.50 0.4 2000
08/31/1999 14:40 08/31/1999 14:25 08/31/1999 15:03 0.6 4.50 0.6 1999
07/23/1999 17:54 07/22/1999 21:15 07/23/1999 21:14 24.0 4.67 0.6 1999
07/10/1999 19:49 07/10/1999 19:19 07/10/1999 21:22 2.1 1.17 <0.1 1999
04/03/1999 03:32 04/03/1999 03:32 04/03/1999 07:29 4.0 2.99 0.3 1999
10/26/1998 03:35 10/26/1998 03:26 10/26/1998 07:25 4.0 2.23 0.2 1999
10/25/1998 16:00 10/25/1998 09:05 10/25/1998 16:17 7.2 1.87 0.2 1999
03/26/1998 13:45 03/26/1998 13:45 03/26/1998 14:09 0.4 1.17 <0.1 1998
02/24/1998 16:21 02/24/1998 09:34 02/24/1998 17:17 7.7 2.13 <0.1 1998
02/04/1998 18:38 02/04/1998 18:23 02/04/1998 19:12 0.8 1.29 <0.1 1998
09/11/1997 12:29 09/11/1997 12:29 09/11/1997 15:44 3.3 1.01 <0.1 1997
08/26/1997 11:46 08/26/1997 11:43 08/26/1997 12:13 0.5 1.09 <0.1 1997

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