Whitlow Ranch Dam - ID # 63307

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Page Last Updated: 13 December 2023

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

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GAGE ID AND DATUM HISTORY

ID Elevation of
Instrument
in Gage Height		 Elevation of
Instrument
in Datum		 Period
       
63307 11.70 feet 2,069.45 feet NAVD88 04/22/2020 -- Current
6739 11.70 feet 2,069.45 feet NAVD88 10/01/2018 -- 04/22/2020
6739 13.00 feet 2,069.00 feet M.S.L. 01/01/2014 -- 09/30/2018
6739 3.30 feet 2,059.30 feet M.S.L. 08/02/2000 -- Current

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SITE DATA

STATUS Active
LOCATION East of Apache Junction near Queen Valley
DRAINAGE AREA 143.5 mi2
STREAM TYPE Dam of natural drainage
JURISDICTION Pinal County, Arizona
WATERSHED Queen Creek
SECTION/TOWNSHIP/RANGE S36 T1S R10E
LATITUDE N 33° 17' 56.6"  |  +33.2991
LONGITUDE W 111° 16' 33.1"  |  -111.2759
ARIZONA STATE PLANE E 895800  | N 836950
USGS QUAD SHEET Florence Junction 7.5-Minute
STREAMGAGE INSTALLATION DATE 01/08/1998 - WY 1998
PERIOD OF AVAILABLE DATA RECORD 08/02/2000 - Current
LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2021) 21.16 Years | 7,730 Days
GAPS (> 2 DAYS) IN RECORD None
STAGE GAGE TYPE Non-submersible Pressure Transducer
STAGE GAGE ELEVATION 11.70 feet Gage Height
STAFF GAGES 25
CREST STAGE GAGES None
ZERO GAGE HEIGHT ELEVATION 2,057.750 feet NAVD88 / 2,056.000 feet M.S.L.
POINT OF ZERO FLOW 0.00 feet Gage Height
SPILLWAY ELEVATION 110.0 feet Gage Height
TOP OF DAM ELEVATION 143.0 feet Gage Height
EXTREME FOR PERIOD OF RECORD 58.20 feet GH | 6,965 Acre-Feet (19.6% full) | 02/12/2005
EXTREME OUTSIDE PERIOD OF RECORD 71.3 feet GH | 11,939 Acre-Feet (33.5% full) | 01/11/1993

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BRIEF RATING

Current Discharge Rating = #1 - Applied since 01/08/1998
Current Capacity Rating = #1 - Applied since 01/08/1998
Gage
Height
(feet)		 Elevation
(feet NAVD88)		 Discharge
(cfs)		 Volume
(acre-feet)
0.00 2,057.75 0 0.0
10.00 2,067.75 215 7
20.00 2,077.75 431 228
30.00 2,087.75 526 994
40.00 2,097.75 606 2,459
50.00 2,107.75 678 4,600
60.00 2,117.75 743 7,559
70.00 2,127.75 802 11,390
80.00 2,137.75 858 16,082
90.00 2,147.75 910 21,625
100.00 2,157.75 960 28,122
110.00 2,167.75 1,005 35,593
120.00 2,177.75 23,310 44,700
130.00 2,187.75 83,147 55,201
140.00 2,197.75 163,840 67,241
143.00 2,200.75 193,150 71,032

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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
2024        
2023 17.14 118.7 1.3 01/02/2023
2022 15.48 71.0 0.8 07/28/2022
2021 31.26 1,139.0 5.6 08/15/2021
2020 14.14 33.0 0.3 03/19/2020
2019 12.71 22.0 < 0.1 02/15/2019
2018 19.29 188 1.9 08/22/2018
2017 25.45 577 3.8 01/24/2017
2016 15.08 60 0.6 08/03/2016
2015 15.60 75 0.8 10/19/2014
2014 18.40 155 1.6 09/27/2014
2013 7.50 1 0.0 09/13/2013
2012 None 0 0.0 None
2011 None 0 0.0 None
2010 53.00 5,330 15.0 01/22/2010
2009 None 0 0.0 None
2008 30.94 1,100 3.1 01/28/2008
2007 29.72 971 2.7 08/06/2007
2006 15.19 63 0.2 08/12/2006
2005 58.20 6,965 19.6 02/12/2005
2004 None 0.0 0.0 None
2003 None 0.0 0.0 None
2002 None 0.0 0.0 None
2001 5.26 1 0.0 03/10/2001
2000 (partial) None 0.0 0.0 None

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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
09/01/2023 12:04 09/01/2023 12:00 09/02/2023 12:04 24.1 17.76 21.9 2023
03/22/2023 16:20 03/22/2023 12:00 03/23/2023 05:05 17.1 12.79 22.1 2023
03/16/2023 07:10 03/16/2023 06:00 03/16/2023 12:25 6.4 12.22 18.7 2023
03/02/2023 22:55 03/02/2023 15:50 03/04/2023 16:35 48.8 12.77 22.0 2023
01/17/2023 12:00 01/15/2023 12:00 01/19/2023 00:00 84.0 16.81 109.4 2023
01/02/2023 01:25 01/01/2023 06:00 01/03/2023 05:10 47.2 17.14 118.7 2023
12/04/2022 14:50 12/04/2022 06:00 12/04/2022 17:30 11.5 12.05 17.8 2023
09/23/2022 18:00 09/23/2022 12:00 09/24/2022 00:00 12.0 12.67 21.3 2022
08/20/2022 15:05 08/20/2022 14:15 08/20/2022 15:50 1.6 14.44 41.5 2022
08/19/2022 19:15 08/19/2022 15:10 08/19/2022 20:40 5.5 14.43 41.2 2022
07/28/2022 15:05 07/28/2022 13:55 07/28/2022 16:55 3.0 15.48 71.0 2022
07/06/2022 10:54 07/05/2022 15:00 07/06/2022 11:00 20.0 13.82 28.0 2022
09/02/2021 06:35 09/02/2021 05:50 09/02/2021 12:00 6.2 14.00 29.0 2021
09/01/2021 07:10 09/01/2021 06:50 09/01/2021 11:30 4.7 12.43 20.0 2021
08/15/2021 17:25 08/14/2021 02:15 08/17/2021 00:00 69.8 31.26 1,139.0 2021
08/14/2021 04:50 08/14/2021 02:15 08/17/2021 00:00 69.8 17.39 126.0 2021
07/10/2021 02:45 07/10/2021 02:35 07/10/2021 03:25 0.8 12.31 19.0 2021
03/19/2020 10:45 03/18/2020 23:50 03/20/2020 00:00 24.2 14.14 33.0 2020
12/27/2019 22:45 12/27/2019 18:40 12/28/2019 09:00 14.3 12.45 20.0 2020
11/29/2019 10:10 11/29/2019 09:40 11/29/2019 18:00 8.3 12.34 20.0 2020
02/15/2019 07:55 02/15/2019 05:55 02/15/2019 18:00 12.1 12.71 22.0 2019
09/02/2018 06:00 09/02/2018 02:55 09/02/2018 11:00 8.1 17.71 135 2018
08/24/2018 22:10 08/24/2018 21:25 08/25/2018 00:00 2.6 15.58 74 2018
08/22/2018 20:30 08/22/2018 18:05 08/23/2018 03:20 9.3 19.29 188 2018
07/10/2018 17:10 07/10/2018 16:50 07/10/2018 18:00 1.2 14.23 36 2018
07/24/2017 14:15 07/22/2017 19:35 07/25/2017 06:00 58.4 19.20 183 2017
07/21/2017 21:35 07/21/2017 18:50 07/22/2017 03:35 8.8 18.26 151 2017
01/24/2017 05:45 data unavailable 01/26/2017 00:20   25.45 577 2017
12/22/2016 15:55 12/22/2016 13:20 12/23/2016 17:00 27.7 16.59 103 2017
08/05/2016 19:38 08/05/2016 19:21 08/08/2016 08:40 61.3 13.72 27 2016
08/03/2016 19:14 08/03/2016 12:01 08/04/2016 00:00 12.0 15.08 60 2016
10/19/2014 21:09 10/19/2014 18:09 10/20/2014 12:09 18.0 15.60 75 2015
09/27/2014 21:05 09/27/2014 17:39 09/28/2014 06:09 12.5 18.40 155 2014
07/06/2014 03:10 07/06/2014 01:05 07/06/2014 06:10 5.1 15.70 78 2014
09/13/2013 17:10 09/13/2013 16:40 09/13/2013 21:25 4.8 7.50 1 2013
03/08/2010 12:10 03/04/2010 08:12 03/31/2010 00:20 640 6.30 1 2010
02/23/2010 00:42 02/22/2010 16:02 02/23/2010 12:42 20.7 6.00 1 2010
01/22/2010   Data Unavailable Data Unavailable   53.00 5,330 2010
09/01/2008 02:59 09/01/2008 01:59 09/01/2008 04:30 2.5 8.03 1 2008
07/11/2008 01:12 07/10/2008 23:42 07/11/2008 05:17 5.6 11.14 13 2008
02/16/2008 03:54 02/15/2008 23:44 02/16/2008 11:18 11.6 4.52 1 2008
02/04/2008 19:34 02/04/2008 14:24 02/05/2008 08:45 18.4 6.21 1 2008
01/28/2008 08:53 01/27/2008 21:03 01/30/2008 06:12 57.2 30.94 1,100 2008
01/07/2008 19:54 01/07/2008 10:44 01/08/2008 17:44 31.0 22.90 392 2008
12/11/2007 06:40 12/11/2007 05:45 12/11/2007 12:10 6.4 4.92 1 2008
12/08/2007 12:10 12/08/2007 04:35 12/08/2007 22:35 18.0 14.99 58 2008
08/06/2007 19:14 08/06/2007 16:29 08/07/2007 19:17 26.8 29.72 971 2007
07/21/2007 23:33 07/21/2007 20:18 07/22/2007 13:38 17.3 18.98 172 2007
08/14/2006 20:48 08/14/2006 14:53 08/15/2006 05:44 14.9 14.38 40 2006
08/14/2006 09:13 08/14/2006 08:38 08/14/2006 14:23 5.8 13.91 28 2006
08/12/2006 05:58 08/11/2006 17:25 08/12/2006 13:58 20.5 15.19 63 2006
07/29/2006 04:28 07/29/2006 02:58 07/29/2006 07:33 4.6 9.25 2 2006
07/27/2006 11:39 07/27/2006 09:24 07/27/2006 14:39 5.3 10.60 10 2006
02/12/2005   Data Unavailable Data Unavailable   58.20 6,965 2005
03/10/2001 16:31 03/10/2001 15:16 03/10/2001 19:06 3.8 5.26 1 2001

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STAFF GAGES

Staff Gage Range Staff Gage Information
2056 - 2061 Near outlet, subtract 2056 for gage height
2061 - 2066 Near outlet, subtract 2056 for gage height
2066 - 2071 Near outlet, subtract 2056 for gage height
2071 - 2076 Near outlet, subtract 2056 for gage height
2076 - 2081 Near outlet, subtract 2056 for gage height
2081 - 2086 Near outlet, subtract 2056 for gage height
2086 - 2091 Near outlet, subtract 2056 for gage height
2091 - 2096 Near outlet, subtract 2056 for gage height
2096 - 2101 Near outlet, subtract 2056 for gage height
2101 - 2106 Near outlet, subtract 2056 for gage height
2106 - 2111 Near outlet, subtract 2056 for gage height
2111 - 2116 Near outlet, subtract 2056 for gage height
2116 - 2121 Near outlet, subtract 2056 for gage height
2121 - 2126 Near outlet, subtract 2056 for gage height
2126 - 2131 Near outlet, subtract 2056 for gage height
2131 - 2136 Near outlet, subtract 2056 for gage height
2136 - 2141 Near outlet, subtract 2056 for gage height
2141 - 2146 Near outlet, subtract 2056 for gage height
2146 - 2151 Near outlet, subtract 2056 for gage height
2151 - 2156 Near outlet, subtract 2056 for gage height
2156 - 2161 Near outlet, subtract 2056 for gage height
2161 - 2166 Near outlet, subtract 2056 for gage height
2166 - 2171 Near outlet, subtract 2056 for gage height
2171 - 2176 Near outlet, subtract 2056 for gage height
2176 - 2181 Near outlet, subtract 2056 for gage height
2181 - 2186 Near outlet, subtract 2056 for gage height
2186 - 2191 Near outlet, subtract 2056 for gage height
2191 - 2196 Near outlet, subtract 2056 for gage height

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