Another Francine mess: Sediment in port channel
A month to the day after Hurricane Francine struck, the signs remain: broken trees, blue tarps on roofs and piles of debris along the roads.
But not all the damage is visible. That’s the case for the Port of Morgan City, where dredges are at work digging sediment out of what had been the best channel in years.
The authorized depth for the channel is 20 feet. But Francine shoved sediment to a depth of 13 feet at a couple of places, said port Executive Director Raymond “Mac” Wade, and 15 feet in at least one other.
“It killed us,” Wade said.
Despite a much smaller than expected storm surge when Francine hit the area Sept. 11, the hurricane clogged the channel with an estimated 7.5 million cubic yards of sediment. That’s a dispiriting development after the port had enjoyed what Wade has called the best channel ever.
The port was beginning to see some business from large vessels working the export trade in 2015. But a series of floods brought sediment down from the Atchafalaya, reducing the channel depth.
Money for dredging the federally authorized channel comes through the Army Corps of Engineers, and the money has been scarce until the last couple of years. Since then, it hasn’t been unusual for four dredges to be working from Morgan City south to the Gulf.
The sediment deposited here by Francine is notable not just for its volume but for its density, Wade said, so cleaning out the channel again will be more difficult.
But “the Corps has been jumping through hoops to get us equipment,” he said.
Three barges were at work on the channel as of Wednesday, including the cutter-head dredge Capt. Frank, which Wade said is moving out 100,000 cubic yards per day.
The three dredges together cost about $250,000 per day.
Reopening the channel will take 60-75 days, Wade said.
The Corps “has been a real good partner because they know a lot of business is going on,” Wade said.
That business for local shipyards includes projects involving the Department of Defense, wind power and LNG exports, all of which depend on water access to deliver their products.
