Graphic and tabular summaries of changes in stream-channel cross sections between 1976 and 1978 for Redwood Creek and selected tributaries, Humboldt County, and Mill Creek, Del Norte County, California

Abstract

Forty-eight surveyed stream-channel cross sections were established along Redwood Creek, Humboldt County, California between 1973 and 1974. Eighty-three cross sections were established at selected sites along tributaries to Redwood Creek between 1974 and 1976. Eleven surveyed stream channel cross sections were established in the Mill Creek drainage basin, Del Norte County, California in the summer of 1974. All cross-sections have been resurveyed at least annually since they were established. All work was done in cooperation with the National Park Service. Data tabulated in this report summarize changes at cross sections since release of previous reports. Data from the Redwood Creek cross sections are tabulated for the following periods: initiation of observation to summer 1978, summer 1975 to summer 1976, and summer 1977 to summer 1978. Data from the Redwood Creek tributary cross sections are tabulated for various periods between 1974 and 1978. Data from the Mill Creek cross sections are presented for the period of summer of 1975 to summer 1978. Thirteen figures are included to aid in understanding the tabulated data.