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50 Years Later – The Legacy of the 1964 Flood Mary Ann Madej.

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Presentation on theme: "50 Years Later – The Legacy of the 1964 Flood Mary Ann Madej."— Presentation transcript:

1 50 Years Later – The Legacy of the 1964 Flood Mary Ann Madej

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3 Landslides strip soil and trees off hillslopes

4 (1978 Photo) Redwood Creek 1964 flood caused massive landsliding on the North Coast 6 million cubic meters in Redwood Creek alone

5 Arcata Marsh: 307 acres-

6 Entire Arcata Marsh: Could be covered by 17 ft. of sediment (McKinley statue) from Redwood Creek alone

7 Simon Creek 1966 1978 Long-term loss of soil productivity

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9 Formation (and persistence) of large log jams

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12 Log jam on Van Duzen River, 1964 From Rumney and Stockton, 2014

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14 Trees killed by gravel deposits Height of flood deposits

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16 Palm Cafe Orick

17 1964 Flood Deposits in Orick Valley: Sand and Silt From Ricks, 1995

18 Overbank flood deposits High water mark

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20 Near-shore sediment deposition – Preservation of flood events Several studies of Eel River shelf

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22 Construction of flood control levees in 1968 dramatically changed circulation patterns in estuary

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24 100-year flood inundation map for Orick valley (Data from USGS, NOAA, USDA, NASA and more) Revised FEMA mapping

25 Increased recognition of impacts of logging helped lead to: 1) establishment of Redwood National Park in 1968 2) California Forest Practice Rules, 1973.

26 1964: G. I. Joe enters the market


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