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Securing Arizona's Water Future
Surface Water Conditions in the Salt River Basin

Streamflow data, including average seasonal flow, average annual flow and other information is shown in Table 5.2-2.  Flood ALERT equipment in the basin is shown in Table 5.2-3.  Reservoir and stockpond data, including maximum storage or maximum surface area, are shown in Table 5.2-4. The location of streamflow gages identified by USGS number, flood ALERT equipment, USGS runoff contours and large reservoirs are shown on Figure 5.2-5.  Descriptions of stream, reservoir and stockpond data sources and methods are found in Volume 1, Appendix A.  Additional information on surface water in this basin can be found in Section 5.2.5 - Perennial/Intermittent Streams and Springs and Section 5.0.5 - Surface Water Hydrology. Where available, the header for each section provides a link to the data web site.  

Streamflow Data

  • Refer to Table 5.2-2.
  • Data from 33 stations located at 22 watercourses are shown in the table and on Figure 5.2-4. 

  • The average seasonal flow at 17 stations is highest in the winter (January-March) and at 14 stations, located primarily along the major tributaries to the Salt River in the eastern part of the basin and higher in the watershed, the average seasonal flow is highest in the spring (April-June).  Two additional stations have the highest average seasonal flow in the summer (July-September). 

  • The average seasonal flow is lowest at most stations in the summer (July-September). 

  • The largest annual flow recorded in the basin is 3.2 maf in 1905 at the Salt River at Roosevelt gage with a contributing drainage area of 5,824 square miles.   For a hydrograph of average annual flow for this gage from 1914-2007 see Figure 5.2-4.

Flood ALERT Equipment

  • Refer to Table 5.2-3.
  • As of October 2005 there were five stations in the basin.

Reservoirs and Stockponds

  • Refer to Table 5.2-4.
  • The basin contains 12 large reservoirs.  The largest is Roosevelt with a maximum capacity of 1,653,043 acre-feet.

  • The most common use of the large reservoirs is recreation.

  • Surface water is stored or could be stored in 62 small reservoirs in the basin.

    There are 807 registered stockponds in this basin.

Runoff Contour

  • Refer to Figure 5.2-5.
  • Average annual runoff is 10 inches per year, or 533 acre-feet per square mile, in the White Mountains in the eastern portion of the basin and decreases to one inch per year, or 53.3 acre-feet per square mile, in the southwestern portion of the basin.

Click to view Table 5.2-2

Click for Table 5.2-2 Streamflow Data for the Salt River Basin

Click to view Figure 5.2-4

Click for Figure 5.2-4 Average Annual Flows (in acre-feet) at Salt River near Roosevelt Water Years 1914-2008 (Station #9498500)

Click to view Table 5.2-3

Click for Table 5.2-3 Flood ALERT Equipment in the Salt River Basin

Click to view Table 5.2-3

Click for Table 5.2-4 Reservoirs and Stockponds in the

Salt River Basin

Click to view Figure 5.2-5

Click for Figure 5.2-5 Salt River Basin Surface Water Conditions

 

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References and Supplemental Reading for the Salt River Basin

Colorado River Central Highlands Planning Area Download entire Central Highlands Planning Area Atlas in pdf Salt River Stream on White Mountain Apache Reservation