Magma FRS - ID # 6718

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Page Last Updated: 17 July 2019


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

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GAGE ID HISTORY

ID Elevation of
Instrument
in Gage Height
Elevation of
Instrument
in Datum
Period
6718 0.80 feet Gage Height 1,600.80 feet NAVD 1988 01/01/2016 -- Current
6718 1,601.30 feet 1,601.30 feet NAVD 1988 11/04/2013 -- 01/01/2016
6718 1,601.30 feet 1,601.30 feet NAVD 1988 11/15/2007 -- 04/12/2012

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SITE DATA

STATUS Active
LOCATION Located east of Hunt Highway along Arizona Farms Road
DRAINAGE AREA 20.6 mi2
STREAM TYPE Dam of natural drainage
JURISDICTION Florence, Arizona
WATERSHED Gila / Queen Creek
SECTION/TOWNSHIP/RANGE S35 T3S R9E
LATITUDE N 33° 07' 11.2"  |  +33.11978
LONGITUDE W 111° 24' 08.9"  |  -111.40248
ARIZONA STATE PLANE E 857422  | N 771497
USGS QUAD SHEET Florence 7.5-Minute
STREAMGAGE INSTALLATION DATE 11/15/2007 - WY 2008
PERIOD OF AVAILABLE DATA RECORD 11/15/2007 - Current Day
LENGTH OF AVAILABLE DATA RECORD (AS OF 06/01/2019) 11.54 Years | 4,216 Days
GAPS (> 2 DAYS) IN RECORD 04/12/2012 - 11/03/2013
STAGE GAGE TYPE Pressure Transducer
STAGE GAGE ELEVATION 0.80 feet Gage Height
STAFF GAGES 1
CREST STAGE GAGES 0
ZERO GAGE HEIGHT ELEVATION 1,600.00 feet NAVD 1988
POINT OF ZERO FLOW 1,600.50 feet NAVD 1988
SPILLWAY ELEVATION 1,623.20 feet NAVD 1988
TOP OF DAM ELEVATION 1,632.50 feet NAVD 1988
NORMAL DRAWDOWN RATE -0.25 feet per hour

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BRIEF RATING

Current Discharge Rating = #2 - Applied since 10/01/2016
Current Capacity Rating = #2 - Applied since 10/01/2016
Gage
Height
(feet)
Elevation
(feet NAVD 1988)
Discharge
(cfs)
Volume
(acre-feet)
0.0 1,600.0 0 0
2.0 1,602.0 6 0.0
4.0 1,604.0 32 13.3
6.0 1,606.0 52 78.7
8.0 1,608.0 68 196.1
10.0 1,610.0 80 357.8
12.0 1,612.0 91 577.4
16.0 1,616.0 112 1,403.6
20.0 1,620.0 131 3,196.4
23.2 1,623.2 145 5,673.5
24.0 1,624.0 544 6,446.2
25.0 1,625.0 1,498 7,515.3
30.0 1,630.0 10,275 14,382.8
32.5 1,632.5 16,510 18,747.9

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WATER YEAR PEAKS

Water
Year
Peak
Elevation
(feet NAVD 1988)
Peak
Volume
(acre-feet)
Percent
Full
(Available Storage Capacity)
Date of
Peak
2020        
2019        
2018 4.46 21.4 0.5 06/16/2018
2017 5.98 74.8 1.3 08/13/2017
2016 1,605.07 48.3 3.6 08/11/2016
2015 1,603.80 12 2.4 05/16/2015
2014 1,607.05 166.8 5.8 09/08/2014
2013 None None None None
2012 (partial) None 0.0 0.0 None
2011 1,603.55 10.3 0.2 12/30/2010
2010 1,612.45 650 11.6 01/23/2010
2009 1,604.55 31.3 0.6 09/05/2009
2008 (partial) 1,619.74 2,991 53.3 07/11/2008

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IMPOUNDMENT EVENT HISTORY

Date of
Peak
Time of
Peak
Runoff
Start
Runoff
End
Duration
(hours)
Peak
Stage
(feet NAVD 1988)
Peak
Volume
(acre-feet)
Water
Year
View a Plot of These Data
               
02/22/2019 09:30 02/21/2019 20:37 02/23/2019 18:57 46.3 1,603.19 0.3 2019
10/14/2018 02:16 10/14/2018 00:00 10/16/2018 12:00 60.0 1,602.31 0.0 2019
06/16/2018 13:49 06/16/2018 11:42 06/19/2018 06:32 66.8 1,604.46 21.4 2018
08/13/2017 11:39 08/13/2017 03:28 08/15/2017 10:10 54.7 1,605.98 74.8 2017
07/24/2017 23:44 07/24/2017 10:36 07/28/2017 00:00 85.4 1,603.00 0.1 2017
01/23/2017 23:36 01/23/2017 21:23 01/25/2017 00:00 26.6 1,603.30 0.5 2017
01/21/2017 04:09 01/20/2017 22:57 01/22/2017 14:34 39.6 1,604.52 22.7 2017
08/11/2016 12:45 08/11/2016 08:38 08/12/2016 10:52 26.2 1,605.07 26.2 2016
05/16/2015 06:00 05/16/2015 03:20 05/17/2015 15:00 35.7 1,603.80 12.0 2015
09/28/2014 00:03 09/27/2014 20:24 09/29/2014 06:03 33.7 1,604.40 26.4 2014
09/08/2014 21:03 09/08/2014 11:18 09/12/2014 00:03 84.8 1,607.50 166.8 2014
12/30/2010 09:00 12/30/2010 07:04 12/30/2010 21:52 14.8 1,603.55 10.3 2011
08/22/2010 05:02 08/22/2010 02:50 08/22/2010 08:58 6.1 1,602.15 1.0 2010
03/08/2010 10:07 03/07/2010 22:01 03/08/2010 21:59 24.0 1,602.25 1.7 2010
02/28/2010 06:38 02/28/2010 04:15 03/01/2010 04:13 24.0 1,604.40 26.4 2010
02/22/2010 17:38 02/22/2010 15:48 02/23/2010 04:26 12.6 1,602.45 2.7 2010
02/07/2010 11:32 02/07/2010 09:47 02/07/2010 22:57 13.2 1,602.45 3.0 2010
01/23/2010 00:21 01/21/2010 06:42 01/26/2010 05:23 119 1,612.45 650 2010
01/20/2010 04:24 01/20/2010 01:31 01/20/2010 17:55 16.4 1,604.65 34.6 2010
09/05/2009 12:53 09/05/2009 10:32 09/06/2009 04:02 17.5 1,604.55 31.3 2009
02/10/2009 05:04 02/10/2009 05:04 02/10/2009 07:25 2.4 1,601.70 <1 2009
07/11/2008   07/11/2008 00:27 Data Unavailable   1,619.74 2,991 2008
02/04/2008 19:41 02/04/2008 16:39 02/05/2008 02:55 10.3 1,602.70 4.7 2008
01/28/2008 03:14 01/28/2008 00:14 01/28/2008 20:53 20.7 1,604.10 16.6 2008
12/01/2007 04:05 12/01/2007 02:22 12/01/2007 15:05 12.7 1,603.40 9.3 2008

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STAFF GAGES

Staff Gage Range Staff Gage Information
1606 - 1626 Gage is on trash rack.
Read elevations thusly: 1607 feet corresponds to the top of the black part just below the number.

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