Stream discharge is collected on three small watersheds in the Fox Creek drainage within the City of Portland's Bull Run Municipal Watershed in the northwestern Oregon Cascades. Stream discharge data collection was started in October 1958 and discontinued in April 1988 on all three watersheds. Watersheds 1 and 3 were harvested from 1969 to 1972 in patch cuts encompassing 25 percent of each watershed, and Watershed 2 was left unlogged as a control watershed. High resolution temporal data is provided as well as daily, monthly and annual summary data. Streamflow data by sampling intervals are also provided from 1970 to 1981 when stream water chemistry data were being collected.
Alfred B. Levno, Donald L. Henshaw, Jack S. Rothacher, Julia A. Jones, R. Dennis Harr, Richard L. Fredriksen
Three experimental watersheds in the City of Portland's Bull Run Municipal Watershed were used to determine effects of patch logging on timing and quantity of streamflow. The objective of this study was to determine the effects of timber harvest on annual water yield, low flows, and instantaneous peak flows in small headwater basins. A pre-treatment period of no logging and the use of one control watershed are used for analysis in this paired watershed study.