Tuesday, October 15, 2024
11 a.m. - 12:30 p.m.
Speaker
Arizona Inn Landslide Emergency Response and Drainage Shaft Replacement, Southwest Oregon
Jamie Schick, PG, CEG, LEG
Delve Underground
The Arizona Inn Landslide Complex is located between mileposts 311.8 and 312.4 on US Highway 101, between Port Orford and Gold Beach, Oregon. The landslide has experienced persistent movements since the initial road construction in the 1930s. In the late 1990s, a vertical drainage gallery was installed in the landslide as means to reduce groundwater pressures in the lower portion of the landslide mass. The gallery consisted of an approximately 200-foot-deep shaft with arrays of horizontal drains installed at three different elevations. This system successfully reduced pore water pressures and slide movement for over 20 years...
Professional Development Hours (PDHs)
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