Corps Revetment Schedule 92719.pdf

The Big River Coalition’s Corps 2019 Revetment Schedule and Transit Restrictions Update 10119 is attached for your reference.

The updated schedule of work as provided by the Corps of Engineer’s Mississippi Valley Division on September 27, 2019 is also attached.

Please note the transit restrictions established around the revetment operations and rock work are tentative and subject to change based on the unknown nature of long-term river stage predictions.

The first revetment operations on the Mississippi River Ship Channel are scheduled to start at Point Michel (Mile 43.5 Above Head of Passes) in early December (2019).

The Coalition intends to issue an update a few weeks prior to the start of revetment operations at Point Michel or when there are substantial changes to the schedule of work.

RE: CORPS’ 2019 REVETMENT SCHEDULE AND TRANSIT RESTRICTIONS 10119

Corps 2019 Revetment Schedule and Transit Restrictions 10119.pdf

The present schedule for the Corps’ Mississippi Valley New Orleans (MVN) 2019 Mississippi River bank stabilization program schedule (revetment and rock work), with applicable navigation restrictions, is enclosed below. The latest schedule of work as provided by the MVN is attached. There are five proposed revetment locations between Baton Rouge and New Orleans and three locations below New Orleans that require revetment mat placement. There is one location above the Ship Channel and north of Baton Rouge (Abroth) listed for revetment operations. There are also two remaining locations that require rock or bank stabilization efforts. The first scheduled revetment operations on the Mississippi River Ship Channel are expected to begin in early December at Point Michel.

The Corps recently hosted a meeting, with representatives from the Corps’ Bank Stabilization Division, the U.S. Coast Guard, applicable Pilot Associations and the Coalition, to detail the scope of bank stabilization efforts and develop potential transit restrictions. During times of actual revetment work, the Mat Sinking Unit (MSU) extends from approximately 300 to 800 feet channelward from the bank. When the Unit is not folded in, it extends about 480 feet from the bank channelward. When it is folded in, the MSU extends 250 feet from the bank. The scheduled working times for the MSU are from 0600 hours to 1900 hours. In different locations the operations may be completed slightly before or after 1900 hours. The Corps agreed to Industry’s request to fold in the Mat Sinking Unit (MSU) at night on revetment locations that warranted concern. The Pilots and Coast Guard’s Lower Mississippi River Vessel Traffic Service will utilize the Contact Pilot on the MSU to coordinate vessel movements in the vicinity of these operations.

The updated schedules from the Corps will be distributed upon receipt. The BRC will notify our members of any changes; however, please keep in mind that some changes occur without notice to Industry. The scheduled dates may change but those shown below are based on the most recent schedule update from the Corps.

2019 Corps’ Revetment Schedule and Restrictions Locations Above New Orleans

MS

October 1, 2019

Location

Mile (Right or Left)

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2019 and 2020 Scheduled Date(s)

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Restriction

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Arbroth

249.2 RDB

January 8 to January 11

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No traffic during working hours. to fold in at night.

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Missouri Bend

219.3 RDB

January 2 to January 3 January 6 to January 7

One-way transits with slow bell during working hours. MSU to fold in at night.

Manchac Bend

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215.4 LDB

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January 20 to January 23

*No traffic during working hours. MSU to fold in at night.

New River Bend

190.4 LDB

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January 24 to January 28

One-way transits with slow bell during working hours. MSU to fold in at night.

Aben

172.5 RDB

December 19 to December 20 December 23 to December 24 December 26 to January 1

No traffic during working hours. MSU to fold in at night.

Saint Alice

163.8 RDB

January 29 to January 31

No traffic during working hours. MSU to fold in at night.

*The working hours at Manchac Bend will be adjusted to allow deep-draft traffic transits through this area at first light in both directions. Revetment operations at Manchac Bend will be scheduled from 0900 hours to 2100 hours to accommodate north- and south-bound ship traffic during morning hours.

2019 Corps’ Revetment Schedule and Restrictions Locations Below New Orleans

Location

Mile (Right or Left)

2019 Scheduled Date(s)

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Restrictions

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Myrtle Grove

58.9 RDB

December 14 to December 17

One-way transits with slow bell during working hours. MSU to fold in at night.

Point Michel

43.5 RDB

December 5 to December 6

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One-way transits with slow bell during working hours. MSU to fold in at night.

Port Sulphur

36.3 RDB

December 9 to December 13

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One-way transits with slow bell during working hours. MSU to fold in at night.

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2019 Corps’ Rock Work Locations Schedule and Restrictions

Location

Mile (Right or Left)

2019 Scheduled Date(s)

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Restrictions

Point Michel

43.5 RDB

Ongoing to October 2

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No restrictions, expected.

Port Sulphur

36.3 RDB

October 3 to October 10

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No restrictions, expected.

The planned 2019 revetment operations include work at several key locations where the banks have been somewhat compromised by the extended high river stages. The work dates are established to focus on the priority locations first. However, throughout the bank stabilization efforts changes based upon river stages and experience with vessel transits should be anticipated. The Corps, Coast Guard, Pilots and BRC will work closely with industry to ensure that changes are noted and distributed as warranted and available.