Gage data analysis involves statistical computations performed using a historical record of flood data at a stream gage to determine the peak discharge on the stream for a flood event of a given probability (e.g., a flood that has a 1-percent annual chance).

For gage data analysis, this section provides information about the stream gage, which includes the:

• Location of the gage
• Name of the agency or organization that owns, operates, and maintains the gage
• Length of historical record used in the analysis

Any changes in the watershed that could influence the peak discharges recorded at the gage may also be discussed in this section.