Aug 30, 2011

How to open a gate

Here’s an email that only an engineer could love:
"Classification: UNCLASSIFIED
Caveats: NONE 
This memorandum summarizes operations to be performed on the S-12 structures in Water Conservation Area 3A (WCA-3A). Reference is made to the discussion between ------ and ------- on Wednesday, August 24, 2011. The rainfall plan target flow for this week is 150 cfs. 
The 3-Station Average for WCA-3A shows water levels are in Zone E of theWCA-3A Regulation Schedule. Due to the small rainfall plan target flow this week and Everglades National Park's desire to maintain the water in the slough, the rainfall plan target flow will be delivered via S-12D. From information provided by ENP, it is understood that the low rainfall plan S-333 target flow has a potential to flow to the eastern part of the L-29 Borrow Canal and result in seepage to L-31N rather than flow in the slough. 
Therefore, the Corps of Engineers South Florida Operations Office (SFOO) is requested to make the following S-12 operations on Thursday, August 25, 2011. 
S-12 GATE CHANGES
S-12A: FROM ALL GATES CLOSED TO NO CHANGE
S-12B: FROM ALL GATES CLOSED TO NO CHANGE
S-12C: FROM ALL GATES CLOSED TO NO CHANGE
S-12D: FROM ALL GATES CLOSED TO 2 GATES @ 0.4' "

As excerpted from recent email sent among agency reps to coordinate gate operations

Actually, I am an engineer and I am having trouble understanding it in complete entirety -- let alone all its technical jargon -- even after multiple reads.  It's that packed with information.

That’s when I reach for a hydrograph to get a better view.


Graphs can say a lot with very few words

A few photos doesn’t hurt either!

Top: S-12D Tailwater, looking east
Bottom: S-12D looking east at S-333 in distance

Bottom line:

The S-12D is open for the first time all year ...
And, wow, nobody said water management would be easy (sigh.)

2 comments:

Lynda said...

That email makes my head hurt; glad it's not up to me to act on it!

Eli Lilly said...

COMMENT: FROM COMMENT ABSENT TO COMMENT PRESENT