Stevens Creek Landslide Lake Level Visualization
Going by GPS elevation data (1236 ft.), it appears that the landslide lake may have backed up about 1 km above the landslide to where the modern Lower Table Mountain trail starts.
I traced the 1240 foot contour line and filled in that area in a transparent blue color to generate this view of a possible high water point:
https://photos.app.goo.gl/rdm2LovcWbE4EhZw6
Volume estimation:
3000' long x 100' avg.width x 40' avg.depth / 42,000 ft^2/acre = 285 acre-feet or ~351,000 m^3.
This area is where traces of the 1895 road show up. There also seem to be large sediment bars on both sides of the creek where the trail crosses Stevens Creek. The 1895 road seems to have taken advantage of the relatively flat lake deposits between these 2 water crossings. However, the flood and subsequent erosion after the 1906 earthquake and landslide is likely what wiped out a good portion of that old road between the 2 creek crossings.
Stevens Creek flow information:
https://alert.valleywater.org/map?p=sensor&sid=5045&disc=f
This is my hypothesis for what has happened in this section of Stevens Creek to explain the flat nature and deep sediment here. Also ties in the anecdotal evidence from the 1973 geology paper:
ENVIRONMENTAL GEOLOGIC ANALYSIS OF THE MONTEBELLO RIDGE MOUNTAIN STUDY AREA:
https://openlibrary.org/works/OL68916...
Pg. 22 mentions a landslide associated with the 1906 earthquake and this is ground zero for that slide. In fact, the report mentions that slide extended for 1/2 mile, nearly a kilometer, along the canyon.
USGS National Map Viewer w/ Hill Shade layers:
https://apps.nationalmap.gov/viewer/
More to come...
Subscribe for more content like this
Comment, rate, share & click the bell icon
And as always, thanks for watching
#USGS #HillShade #geology #earthquake #tectonicplates
-
57:59
Tate Speech by Andrew Tate
17 hours agoEMERGENCY MEETING EPISODE 69 - HARD TALK
220K355 -
34:56
Freakin' Reviews
1 day agoTesting and Ranking SEVEN Strange Products by Request!
47.4K18 -
53:57
I_Came_With_Fire_Podcast
1 day ago"Missouri v. Biden: Supreme Court Case on Censorship" w/MO Attorney General Andrew Bailey
68.6K49 -
1:09:03
Michael Franzese
1 day agoThe left has FAILED and DECEIVED black community | Sitdown with Quenton Jordan
70K42 -
1:04:11
Tactical Advisor
9 hours agoNew Gun Releases/Q&A - Vault Room Live Stream
79.1K33 -
15:04
Lloyd And Mandy
15 hours agoIs COLLEGE The World's BIGGEST SCAM?
79.8K43 -
10:50
ThinkStory
1 day agoTHE PERFECT COUPLE Ending Explained & 10 Hidden Clues That Point to the Murderer!
102K7 -
11:37
Cooking with Gruel
1 day agoGrilled Meatball Sliders
73.5K12 -
6:53
Dr. Nick Zyrowski
1 day agoPotassium: The Critical Electrolyte You're Ignoring
75.3K10 -
14:58
DepressedGinger
1 day ago*FULL* 2024 Election Swing State Updated Breakdown
57.1K58