Galloway Wash at Galloway Road - ID # 20607

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Page Last Updated: 10 March, 2025

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

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GAGE ID AND DATUM HISTORY

ID Elevation of
Instrument
in Gage Height
Elevation of
Instrument
in Datum
Period
       
20607 0.15 feet 2,285.15 feet NAVD88 08/16/2016 -- Current

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SITE DATA

STATUS Active Alert2 Station
LOCATION Located on Galloway Road about 1/8 mile north of Cave Creek Road
DRAINAGE AREA 6.6 mi2
STREAM TYPE Natural
JURISDICTION Cave Creek, Arizona
WATERSHED Cave Creek
SECTION/TOWNSHIP/RANGE S34 T6N R4E
LATITUDE N 33° 49' 54.1"  |  +33.83170
LONGITUDE W 111° 55' 43.3"  |  -111.92870
ARIZONA STATE PLANE E 696370  | N 1030150
USGS QUAD SHEET Cave Creek 7.5-Minute
STREAMGAGE INSTALLATION DATE 08/16/2016 - WY 2016
PERIOD OF AVAILABLE DATA RECORD 08/16/2016 - Current
LENGTH OF AVAILABLE DATA RECORD (AS OF 10/01/2024) 8.13 Years | 2,968 Days
GAPS (> 2 DAYS) IN RECORD None
STAGE GAGE TYPE Pressure Transducer
STAGE GAGE ELEVATION 0.15 feet Gage Height
STAFF GAGES 1
CREST STAGE GAGES 1
ZERO GAGE HEIGHT ELEVATION 2,285.00 feet NAVD88
POINT OF ZERO FLOW 0.1 feet Gage Height
EXTREME FOR PERIOD OF RECORD 1,518 cfs | 2.52 feet GH | 08/23/2018

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BRIEF RATING

Current Rating = #2 - Applied since 03/10/2025
Discharge
(cfs)
Elevation
feet
Gage Height
Elevation
feet
NAVD88
0 0.00 2,285.00
50 0.99 2,285.99
100 1.20 2,286.20
300 1.83 2,286.83
500 2.30 2,287.30
800 2.91 2,287.91
1,000 3.29 2,288.29
2,000 4.48 2,289.84
3,000 6.14 2,291.14
5,000 8.50 2,293.50

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WATER YEAR PEAKS

Water
Year
Peak
Gage Height
(feet)
Peak
Discharge
(cfs)
Date of
Peak
2025      
2024 None 0 None
2023 1.66 535 08/31/2023
2022 1.12 137 08/19/2022
2021 1.40 304 08/18/2021
2020 None 0 None
2019 1.13 140 10/07/2018
2018 2.52 1,518 08/23/2018
2017 0.79 19 02/28/2017
2016 (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
               
08/31/2023 23:09 08/31/2023 22:37 09/01/2023 00:00 1.4 1.66 535 2023
08/19/2022 17:44 08/19/2022 17:31 08/19/2022 18:38 1.1 1.12 137 2022
08/18/2021 14:27 08/18/2021 13:57 08/18/2021 14:47 0.8 1.40 304 2021
10/07/2018 04:21 10/07/2018 04:11 10/07/2018 04:53 0.7 1.13 140 2019
08/23/2018 17:18 08/23/2018 17:03 08/23/2018 17:59 0.9 2.52 1,518 2018
02/28/2017 08:18 02/28/2017 07:50 02/28/2017 09:13 1.4 0.79 19 2017

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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
FEMA Flood Insurance Study
2-year 5-year 10-year 20-year 50-year 100-year 200-year 500-year
----- ----- ----- ----- ----- 3,100 ----- -----
USGS StreamStats Flood Flow Frequency
2-year 5-year 10-year 25-year 50-year 100-year 200-year 500-year

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STAFF GAGE

Range Location
0 - 6 Located on upstream pier adjacent to transducer

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CREST STAGE GAGES

Crest Gage Number Pin Elevation
(Feet, Gage Height)
Additional Information
1 0.31 Located on right side of culvert, near transducer gage

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