The U.S. Army Corps of Engineers and the U.S. Geological Survey have collected streamflow data from gaging stations located in and near the Mobile Estuary in southwestern Alabama since 1940. These data include stage, stream velocity, and water quality information, which were collected from 12 gaging stations and at miscellaneous sites in the region. During the period from 1978 to 1983, over 100 discharge measurements were made along the U.S. Highway 90 Causeway for the Tensaw, Apalachee, and Blakely Rivers. The purpose of this report is to publish information on the type of data collected in the region, list of availability of the data, and publish where the data can be found. (USGS)