Can we talk about that silt buildup at the Green River project?

I was out at the Green River dredge site last Tuesday and noticed the silt is piling up way faster than usual near the intake pipe. We were pulling about 15 cubic yards an hour but the fines just kept settling back in. Has anyone else seen this kind of buildup after a wet spring like we had?

2 comments

2 Comments

ivan407d ago

Man that sucks to deal with, especially after a wet spring when you think you'd be ahead of the game. We had a similar headache out at the Morrison slough last month where the fines just would not settle and kept clogging our discharge line. Had to run an extra pass with the flocculant just to get the water clear enough to pump out.

felix988d ago

Noticed the same thing myself a few weeks back. Did you check the particle size distribution in the runoff this year versus last? I'm wondering if the heavier spring rains are washing in more clay sized particles that don't settle out as fast, so they just recirculate and drop back down near the intake. We had to switch to a finer mesh screen on our filter boxes to catch more of it before it hit the main settling pond, but that slowed our throughput to about 12 yards an hour. How's the water clarity looking on your side of the intake?

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