Comprehensive Real-Time News Feed for Oroville, CA.
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Last week, I said that up to a foot of rain could be seen in the Lake Oroville watershed due to a series of "supersoaker storms" coming through. Now, the largest of the storms is bearing down. Comment?
Two small Earthquakes were recorded near Lake Oroville in the last 24 hrs, which appear to be a result of the fast lake level changes, and the subsequent release of pressure from water weight. Note the two yellow dots on the USGS map below: The predicted earthquakes due to extreme lake level change have started. Comment?
We've already had two big events like this so far this year, now forecasts show a clear pattern of a heavily moisture laden "atmospheric river" taking aim directly onto the Oroville Dam watershed over the next week. Accumulated precipitation forecasts show that the Lake Orovile watershed will score a direct hit with the maximum amount of precipitation over the next 10 days . Comment?
Partial view of the dam's emergency spillway next to its main service spillway Photo: Martin Alfaro Over the last week, Murphy's Law has been on overdrive in Northern California as Oroville dam suffered a series of mishaps, resulting from poor planning, lack of maintenance, and lack of heeding warnings years ago on the part of the state bureaucracy known as the California Department of Water Resources. The result was a badly broken regular spillway, a damaged "emergency spillway" and finally, a several county evacuation downstream of about 180,000 people because DWR officials feared the "emergency spillway" would breach. Comment?
Department of Water Resources officials say they expect the emergency spillway at Oroville Dam to fail, and say residents should evacuate northward. The emergency spillway suffered erosion and could fail, according to DWR. Comment?
The Lake Oroville saga continues, yesterday we wondered if the collapse of the spillway might have been due to missing or substandard REBAR , and many experts weighed it on that topic. It now appears that there was REBAR there, and the failure was likely of a nature of lack of maintenance and age combined. Comment?
Looking at the many photos online of the Oroville Spillway collpase that has been in the news, there's one major component of concrete that should be there, but is blatantly absent: Rebar , collectively known as reinforcing steel and reinforcement steel, is a steel bar or mesh of steel wires used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and hold the concrete in tension. Rebar's surface is often patterned to form a better bond with the concrete. Comment?
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