Bureau of Reclamation Lower Colorado Region Banner
Reclamation Home             Reclamation Offices             Newsroom             Library             Projects & Facilities

Lower Colorado River Historical Stream Flow Reports

Each year, the Bureau of Reclamation collects, computes, and reports streamflow data from a network of gaging stations between Davis Dam and the international boundary with Mexico. Each gaging station in this network generates hourly "provisional" data which is reviewed, analyzed and adjusted to create the "final" data documented in these annual reports.

Note: All reports are formatted as Adobe Acrobat PDF files

2012 (2.6 MB)
2011 (4.1 MB)
2010 (3.5 MB)
2009 (4.7 MB)
2008 (1.7 MB)



Contact: bcoowaterops@usbr.gov
Updated: Jan 2014