San Pablo Reservoir

Wasn't it about 2-years ago now, that EBMUD pulled the level of San Pablo Reservoir down to 60% because engineers expressed lack-of-confidence in the Dam's integrity.     There were newspaper articles repeating discussion whether they would dig out the entire dam and replace it with new.

Then pretty much silence......and by casual eye-ball examination it looks like the reservoir level is still being held at about 60%.    (it's my understanding that the low water level has NOTHING to do with "drought".....and everything to do with the integrity of the dam)

I tried to answer my own question:  "What's up with San Pablo Rez....is it going to remain a 60% filled rez...???..." by googling it.    No luck.   All you get from the internet is the usual "park & recreational advisorys."

Anybody know any answers?

Judd

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OK----I improved the quality of my internet search----

Right now they are going through the Environmental Impact Statement loop.

Here is a Corps of Engineers summary of what's to be done:

First of all, the buttress and foundation soils against
the downstream toe of the dam will be excavated and
stockpiled. [The intent is to not intercept the
groundwater level.] Following the initial excavation
step, the remaining foundation material at the dam’s
toe will be strengthened in place by being mixed with
cement grout using an augering system. The resulting
soil-cement columns will reach bedrock and will form
a series of grids.

When this process is completed, a new, larger buttress
will be constructed at, and extending of the existing
toe. The stockpiled soil from the initial excavation,
and additional clayey soil brought from the Scow
Canyon borrow area, will be moisture-conditioned
and compacted to form this buttress.

In order to facilitate the transport of the large amount
of fill material needed from the Scow Canyon area to
the project at the dam face, EBMUD plans to widen
curves and some narrow portions of an existing fire
road, which would result in 0.9 acre of fill in creek
channels.

The project is expected to take two years to complete.

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I didn't find any statement of when work would begin.

Judd

Thanks for the search.

  I've noticed that they have been taking out the trees which was a mystery to me. Now it makes sense,

 but from your report it looks as though another 2 to 3 years of low water in that " Mud Hole ".. ... Danglin