Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
Click to hide state-specific text

Welcome to the NWIS-Web for the Arizona Water Science Center


The majority of USGS Gaging Stations are funded though a cooperative program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with the USGS.

Arizona Water Science Center Home Page
Colorado Basin River Forecast Center (CBRFC) - provided by the National Weather Service, AHPS. CBRFC on an interactive map.
Threatened and Endangered USGS Gaging Stations in Arizona
! This page will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline.

USGS 09509501 HORSESHOE RESERVOIR AT HORSESHOE DAM, AZ

  Lake Site

DESCRIPTION:
Latitude 33°59'05",   Longitude 111°42'35"   NAD27
Maricopa County, Arizona, Hydrologic Unit 150602030503
Drainage area: 5,973.0 square miles
Datum of gage: 1,903.55 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2025-11-30  
 Daily Data
    Reservoir storage, acre-feet  1974-10-01  2025-11-29  18688 
    Gage height, feet  1978-10-01  2026-01-21  16521 
 Field measurements 2008-11-03  2009-11-24  17 
 Water-Year Summary 2014  2024  11 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Arizona Water Science Center
Email questions about this site to Arizona Water Science Center Water-Data Inquiries