Salt River at 51st Avenue - ID # 5307

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Page Last Updated: 04 November 2025

ID History | Site Data  | Brief Rating  | Water Year Peaks  | Runoff History  | Flood Frequency  | Staff Gages  | Crest Gages

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GAGE ID AND DATUM HISTORY

ID Elevation of
Instrument
in Gage Height		 Elevation of
Instrument
in Datum		 Period
       
5307 1.90 feet 988.51 feet NAVD88 03/20/2020 -- Current
4753 1.90 feet 988.51 feet NAVD88 10/01/2018 -- 03/20/2020
4753 1.60 feet 1,051.60 feet NGVD 1929 04/27/2011 -- 09/30/2018

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SITE DATA

STATUS Active
LOCATION Located at the 51st Avenue crossing of the Salt River
DRAINAGE AREA 13,052 mi 2
STREAM TYPE Channelized Natural Stream
JURISDICTION Phoenix, Arizona
WATERSHED Lower ACDC
SECTION/TOWNSHIP/RANGE S29 T1N R2E
LATITUDE N 33° 23' 54.6"  |  +33.3985
LONGITUDE W 112° 10' 22.5"  |  -112.1729
ARIZONA STATE PLANE E 623130  | N 875025
USGS QUAD SHEET Fowler 7.5-Minute
STREAMGAGE INSTALLATION DATE 04/27/2011 - WY 2011
PERIOD OF AVAILABLE DATA RECORD 04/27/2011 - Current
LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2024) 13.43 Years | 4,906 Days
GAPS (> 2 DAYS) IN RECORD None
STAGE GAGE TYPE Gas Purge Non Submersible Transducer
STAGE GAGE ELEVATION 1.90 feet Gage Height
STAFF GAGES 2
CREST STAGE GAGES 3
ZERO GAGE HEIGHT ELEVATION 986.611 feet NAVD88
POINT OF ZERO FLOW 1.5 feet Gage Height
EXTREME FOR PERIOD OF RECORD 15.21 Feet | 39,432 CFS | 03/23/2023

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BRIEF RATING

Current Rating = #1 - Applied since 04/27/2011
Discharge
(cfs)		 Elevation
feet
Gage Height		 Elevation
feet
Gage Height
0 0.00 986.61
8 2.00 988.61
407 4.00 990.61
1,745 6.00 992.61
4,756 8.00 994.61
9,729 10.00 996.61
17,773 12.00 998.61
29,841 14.00 1,000.61
46,749 16.00 1,002.61
69,461 18.00 1,004.61

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WATER YEAR PEAKS

Water
Year		 Peak
Gage Height
(feet)		 Peak
Discharge
(cfs)		 Date of
Peak
2026      
2025 None 0 None
2024 None 0 None
2023 15.21 39,432 03/23/2023
2022 None 0 None
2021 5.10 974 12/10/2020
2020 4.20 485 03/24/2020
2019 5.80 1,545 03/15/2019
2018 3.10 163 08/02/2018
2017 10.50 11,376 03/01/2017
2016 None 0 None
2015 None 0 None
2014 5.62 1,380 09/08/2014
2013 None 0 None
2012 None 0 None
2011 (partial) None 0 None

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RUNOFF EVENT HISTORY

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
               
05/05/2023 16:16 05/04/2023 12:00 05/09/2023 00:00 108.0 3.42 232 2023
03/23/2023 20:39 03/20/2023 06:00 05/01/2023 19:46 1021.8 15.21 39,432 2023
03/02/2023 00:33 03/01/2023 19:24 03/02/2023 08:06 12.7 3.09 161 2023
01/16/2023 12:00 01/15/2023 12:00 01/18/2023 18:00 78.0 2.41 33 2023
12/28/2022 13:45 12/28/2022 09:01 01/01/2023 09:01 96.0 2.84 119 2023
10/15/2022 23:35 10/15/2022 12:00 10/18/2022 12:00 72.0 2.40 31 2023
08/14/2021 02:25 08/14/2021 01:35 08/15/2021 18:00 40.4 3.99 404 2021
07/25/2021 18:00 07/25/2021 16:35 07/28/2021 00:00 55.4 2.80 113 2021
12/10/2020 12:00 12/10/2020 11:10 12/13/2020 06:00 66.8 5.10 974 2021
03/24/2020 06:00 03/23/2020 12:13 04/01/2020 12:00 215.8 4.20 485 2020
03/15/2019 06:00 03/09/2019 23:00 03/24/2019 06:00 343 5.80 1545 2019
03/04/2019 18:00 03/04/2019 11:15 03/09/2019 00:00 109 5.70 1451 2019
08/12/2018 14:23 08/02/2018 14:23 08/02/2018 15:15 0.9 3.10 163 2018
03/01/2017 23:50 03/01/2017 11:26 03/16/2017 12:00 361 10.50 11,376 2017
09/08/2014 16:08 09/08/2014 05:32 09/09/2014 08:45 27.2 5.62 1,380 2014

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FLOOD FLOW FREQUENCY

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
Analysis of Modified Roosevelt Dam
2-year 5-year 10-year 20-year 50-year 100-year 200-year 500-year
----- 20,500 55,000 90,000 140,000 169,000 ----- -----

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STAFF GAGES

Staff Gage Range Staff Gage Information
2-sections, Staff Plates
1.50 - 13.60 Located on pier with transducer
Displays in Gage Height
NOTE: Not readable from any bank
Painted staff Gage
0 - 12 Painted on pier, viewable from south bank
Zero GH on painted staff gage equals 2.50 feet GH on staff plates

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CREST STAGE GAGES

Crest Gage Number Pin Elevation
(Feet, Gage Height)		 Additional Information
1 7.54 Lower CSG on instrumentation pier 1
2 12.41 Middle CSG on instrumentation pier 1
3 17.02 Upper CSG on instrumentation pier 1

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