Lower Mississippi River (LMR) Dredging Update 72118

The Corps of Engineers Mississippi Valley New Orleans (MVN) continues to respond to the shoaling, created by the extended high river stages of early 2018, on the Crossings Above New Orleans and in the New Orleans Harbor.  The MVN is actively dredging on the Crossings Above New Orleans with all three dustpan dredges working to restore at least the central 250 feet of channel.  Federally authorized channel dimensions on the Crossings Above New Orleans are 45 feet by 500 feet.

 

UPDATE DUSTPAN DREDGES ON THE CROSSINGS ABOVE NEW ORLEANS:    

WALLACE McGEORGE: The industry dustpan dredge WALLACE McGEORGE completed restoring full channel dimensions (500 feet) at Alhambra Crossing (Mile 192 AHP) at 0800 hours today (Saturday, July 21, 2018).  The cutterhead is moving upriver to begin dredging full channel dimension at Medora Crossing (Mile 212 AHP).  The NOBRA and Federal Pilots have reopened the White Castle Anchorage (Mile 191.1 AHP to Mile 190.4 AHP) for normal vessel usage.  The WALLACE McGEORGE commenced dredging on the Crossings on Friday, May 11, 2018.                                                                                                              

The Carrollton Gauge reading at 1100 hours today was 5.61 feet, with a 24-hour change of – 0.25 feet.

The Baton Rouge Gauge reading at 1100 hours today was 18.48 feet, with a 24-hour change of – 0.75feet.

The graph below is reproduced from NOAA’s National Weather Service website and represents an experimental product based on the complexity of accurately predicting long-range precipitation.  This forecast projects stage levels based on expected precipitation for 2 days (top) and 16 days (bottom) and was developed within the North American Ensemble Forecast System (NAEFS) computer model and highlights Quantitative Precipitation Forecasts (QPF).  Along with the forecasts, a shaded area is also provided to indicate uncertainty for the forecast each day in the future.   These plots are experimental and not an official forecast product.

 

/var/folders/83/ds2vhg_s2s39nmn49gg6jwrh0000gn/T/com.microsoft.Outlook/WebArchiveCopyPasteTempFiles/NORL1_67_28d_forecast_error_plot.png

 

Please see the below report for complete details on dredge locations.

 

DUSTPAN DREDGES ON THE CROSSINGS ABOVE NEW ORLEANS:

HURLEY: The Corps’ dustpan dredge HURLEY continues dredging the central 250 feet at Baton Rouge Front (Mile 231 Above Head of Passes [AHP]). The dustpan dredge began dredging on the Crossings on Wednesday, May 16, 2018.

WALLACE McGEORGE: The industry dustpan dredge WALLACE McGEORGE completed restoring full channel dimensions (500 feet) at Alhambra Crossing (Mile 192 AHP) at 0800 hours today (Saturday, July 21, 2018). The cutterhead is moving upriver to begin dredging full channel dimension at Medora Crossing (Mile 212 AHP). The NOBRA and Federal Pilots have reopened the White Castle Anchorage (Mile 191.1 AHP to Mile 190.4 AHP) for normal vessel usage. The WALLACE McGEORGE commenced dredging on the Crossings on Friday, May 11, 2018.

JADWIN: The Corps’ dustpan dredge JADWIN continues dredging full channel dimensions (500 feet) at Smoke Bend (Mile 175 AHP). The JADWIN began dredging on the Crossings on Thursday, May 10, 2018.

CUTTERHEAD DREDGE AT THE NEW ORLEANS HARBOR:

MIKE HOOKS: The MVN issued a contract to Mike Hooks, Inc. to dredge in the New Orleans Harbor and is coordinating the cutterhead assignment with the representatives of the Port of New Orleans. The cutterhead dredge MIKE HOOKS has now completed dredging under the contract for the Port of New Orleans. The cutterhead has commenced dredging under contract for MVN, the dredge’s first assignment is between Henry Clay Avenue Wharf and Nashville Avenue Wharf (Berth A).