Download presentation
Presentation is loading. Please wait.
Published byBrittney Patrick Modified over 9 years ago
1
50 Years Later – The Legacy of the 1964 Flood Mary Ann Madej
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
9
Formation (and persistence) of large log jams
12
Log jam on Van Duzen River, 1964 From Rumney and Stockton, 2014
14
Trees killed by gravel deposits Height of flood deposits
16
Palm Cafe Orick
17
1964 Flood Deposits in Orick Valley: Sand and Silt From Ricks, 1995
18
Overbank flood deposits High water mark
20
Near-shore sediment deposition – Preservation of flood events Several studies of Eel River shelf
22
Construction of flood control levees in 1968 dramatically changed circulation patterns in estuary
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
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.