The ultimate test took place last week - over 6" of rain in a 4 day period, all of which were short heavy rain fall events which swelled the creeks to max capacity. The pond peaked at 26" above normal level, and as of Saturday it was still 18" over.
The small weir did its job this time around
This is the view looking downstream toward the weir
The creek absorbed quite a bit of the upstream sediment but another 3' was added to the delta/peninsula in the pond.
The large weir at work
You can tell the water flowing through on the right is still pretty muddy but the sediment trap to the left is working wonderfully.
Overall water clarity is garbage but it is better than what it would have been without these two weirs. I have much, much more work to do.