Flood-hazard study, 100-year stage for Baldwin Lake, San Bernardino County, California

Shoreline features that represent former high-water stages on Baldwin Lake are found at 10 different altitudes that range from 6,700 to 6,713 feet (2,042 to 2,046 metres). Stage frequencies were assigned to the stages, but the date of formation of the features could be determined only for the most recent shorelines.

Stage-frequency analysis involving 39 years of observed annual maximum stage record of the lake and an additional 40 years of synthetic record of annual maximum stage, based on a precipitation-stage relation, resulted in an estimate of 6,710.7 feet (2,045 metres) for lake altitude corresponding to a 100-year flood.