Lower Mississippi River (LMR) Dredging Update 9418

The Corps of Engineers Mississippi Valley New Orleans (MVN) continues to address the shoaling on the Crossings Above New Orleans and in the New Orleans Harbor.  The MVN is working to restore full channel dimensions on the Crossings with the three dustpan dredges.  Federally authorized channel dimensions on the Crossings Above New Orleans are 45 feet by 500 feet. All four dredges may be temporarily offline as they respond to any localized weather impacts as Tropical Storm/Hurricane Gordon moves ashore.

The Carrollton Gauge reading at 1000 hours today was 4.84 feet, with a 24-hour change of + 0.36feet.

The Baton Rouge Gauge reading at 1000 hours today was 11.58 feet, with a 24-hour change of – 0.09 feet.

The graph below is reproduced from NOAA’s National Weather Service website and represents an experimental product to account for 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 assignments.

 

DUSTPAN DREDGES ON THE CROSSINGS ABOVE NEW ORLEANS:

WALLACE McGEORGE: The industry dustpan dredge WALLACE McGEORGE continues dredging full channel dimensions (500 feet) at Baton Rouge Front (Mile 229 Above Head of Passes [AHP]). The WALLACE McGEORGE commenced dredging on the Crossings on Friday, May 11, 2018.

HURLEY: The Corps’ dustpan dredge HURLEY continues dredging full channel dimensions (500 feet) at Red Eye Crossing (Mile 224 AHP). The dustpan dredge began dredging on the Crossings on Wednesday, May 16, 2018.

JADWIN: The Corps’ dustpan dredge JADWIN is expected to commence dredging full channel dimensions (500 feet) at Smoke Bend Crossing (Mile 175 AHP) no later than tomorrow morning. The JADWIN began dredging on the Crossings on Thursday, May 10, 2018.

GOVERNMENT HOPPER DREDGE AT SOUTHWEST PASS:

WHEELER: The MVN’s hopper dredge WHEELER completed Readiness Exercise #3-2018 on August 29, 2018. The WHEELER is scheduled to conduct Readiness Exercise #4-2018 from September 12th to September 27th.

CUTTERHEAD DREDGE AT THE NEW ORLEANS HARBOR:

MISSOURI H: The cutterhead dredge MISSOURI H replaced the cutterhead dredge MIKE HOOKS for the contracted dredging in the New Orleans Harbor. The MISSOURI H is presently dredging in the area of the Riverwalk and Julia Street Cruise Terminal in the New Orleans Harbor.