See post 2127. I didn’t claim a breach, instead, preparations for a deliberate breach, which I’ve retracted. The evolution of my mistake is apparant thru the thread.
Too tired to walk thru it now. I will emphasize...no breach, no preps for deliberate breach, nothing but tiny, old gates, straining to unload a big detention pond after a thousand year flood, a disgruntled Cajon Navy member, and mismarked video footage.
All is...well, maybe not well, but mostly, however ACE says it is.
Apologies.
I’m tired too; gotta check a groundwater monitoring network next to a river in the morning so shouldn’t be trying to figure this out, but agree with your last remarks. However, two comments:
At Addicks water from the water-filled cofferdam appears to have drained from there into the water coming from the release gates. At minute 1:04 at lower left you can see a small braided channel, now drying, as evidence of that. Also at 1:04, notice the brown scar at top left center with no green grass. At 1:46 there is telltale evidence of water draining from the area of the scar as shown by debris fan where it meets the cofferdam water. I wonder if there was slumpage similar to what you have with landslides in the US northwest. These occur when water infiltrates until a less permeable layer is encountered and the seepage water then acts a lubricant overcoming soil friction allowing slumping to occur. Though it appears no water is seeping from the other side, there was movement of soil from that slope and that has to be worrying to ACE.
Also notice the water rushing out at minute 2:18. It’s not identified except being at Addicks. From the lamppost shadows, I have to conclude its water coming out of the northeast emergency spillway (water that started spilling when it rose to a level of 108.00 feet). Certainly it’s a lot more than the small volume I would expect to see. Sort of reminiscent of water going over the emergency spillway at Oroville Dam.
No sign so far of them breaching Addicks. The Cajun probably didn’t lie, but either spread gossip or else they—flood control—changed their mind.