Lake Borgne sector gate almost closed; moves the first line of protection 13 miles out from the city.
Alex Lamers, a National Weather Service meteorologist in Tallahassee, tweeted Hurricane Isaac updates, including this impressive one about conditions near the barrier:
Surge at Shell Beach gauge (Lake Borgne) peaked at 11.07ft at 12:36am CDT. Still running over 9ft with gusts to 70mph.
And then USA Today's New Orleans-based Gulf Coast correspondent Rick Jervis reported just how well the barrier was faring in the midst of all that:
Lake Borgne surge barrier stopped a 15-foot storm surge during
For now it seems to be passing the test. However, the Lake Borgne Surge Barrier is just one part in a ring of $14.5 billion structures and systems created by the Army Corps of Engineers post-Katrina to protect the city. Even though Hurricane Isaac is far less powerful than Katrina, the flood risk remains intense. So much so that an evacuation of 3,000 people in a southeastern parish was ordered today.