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Securing Arizona's Water Future
Surface Water Conditions in the Lake Mohave Basin

Streamflow data, including average seasonal flow, average annual flow and other information is shown in Table 4.6-2.  Flood ALERT equipment in the basin is shown on Table 4.6-3.  Reservoir and stockpond data, including maximum storage or maximum surface area, are shown in Table 4.6-4.   The location of streamflow gages identified by USGS number, flood ALERT equipment, USGS runoff contours and large reservoirs are shown on Figure 4.6-4.  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 4.6.5 - Perennial/ Intermittent Streams and Springs and Section 4.0.2 - Surface Water Hydrology. Where available, the header for each section provides a link to the data web site.  

Streamflow Data

  • Refer to Table 4.6-2.
  • Data from two real-time stations located on the Colorado River are shown in the table and on Figure 4.6-4. 

  • Seasonal flow is regulated by releases from the dams and therefore is similar in all seasons. 

  • Maximum annual flow for both stations occurred in 1984; 21,350,096 acre-feet at the Colorado River below Hoover Dam station and 21,596,249 acre-feet at the Colorado River below Davis Dam station. Minimum annual flow was 5,919,516 acre-feet at the station below Hoover Dam in 1934 and 7,406,290 acre-feet in 1982 at the station below Davis Dam.

Flood ALERT Equipment

  • Refer to Table 4.6-3.
  • As of October 2005 there were eight stations in the basin.

Reservoirs and Stockponds

  • Refer to Table 4.6-4.
  • The basin contains five large reservoirs.  The largest is Lake Mead with a maximum capacity of 29,755,000 acre-feet.

  • There are two small reservoirs in the basin.

  • There are three registered stockponds in the basin.

Runoff Contours

  • Runoff is 0.1 inches per year, or 5.33 acre-feet per square mile, along the eastern basin boundary.

Click to view Table 4.6-2

Click to view Table 4.6-2 Streamflow Data for the

Lake Mohave Basin

Click to view Table 4.6-3

Click to view Table 4.6-3 Flood ALERT Equipment in the

Lake Mohave Basin

Click to view Table 4.6-4

Click to view Table 4.6-4 Reservoirs and Stockponds in the Lake Mohave Basin

Click to view Figure 4.6-4

Click for Figure 4.6-4 Lake Mohave Basin

Surface Water Conditions

 

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