U.S. Gulf:
Forecasts called for overnight fog delays throughout the Gulf starting around Dec. 14, potentially triggering 8-12 delays on overnight movements.
Weekday Bayou Boeuf Lock navigation remained limited to between 7:00 p.m. and 7:00 a.m. Transit was available on a 24-hour schedule on Saturdays and Sundays.
Harvey Lock has been reported closed to traffic for emergency repairs since Dec. 6, requiring vessels to detour through Algiers Lock.
Shoaling reported at Mile 7 in the Houma Navigational Canal limited vessel drafts to 11 feet at Miles 6-10, a Coast Guard safety advisory indicated. Dredging reported at the site was projected to wrap up on Dec. 22.
Bayou Chene floodgate construction limited travel to 7:00 p.m. to 7:00 a.m. nightly. Tows were reportedly capped at 600 feet of length, while an assist vessel was required on all movements wider than 54 feet. Dive operations were projected to trigger intermittent shutdowns through the area lasting up to 6-12 hours at a stretch.
Towing restrictions continued at Miles 113-116 of the Atchafalaya River, located in the Morgan City area. Barge and vessel drafts were limited to 10 feet due to extensive shoaling, while total tow sizes were restricted to 600-foot lengths and 70-foot widths. Tows running longer than 400 feet were advised to use an assist tug. Vessels could bypass the restrictions entirely by detouring through the Port Allen Route, according to Coast Guard documents.
Ongoing length and width restrictions were reported on travel through Algiers Lock, effectively capping unassisted travel to four standard barges or two 30,000 mt tankers per lock, although larger movements were available if accompanied by an assist vessel.
Belle Chasse Bridge construction projected to run through late 2022 was likely to trigger intermittent navigational shutdowns, with delays noted up to 12 hours at a time. The structure is located near Mile 3 in the West Canal.
Port Allen Lock continued to see lengthy delays, with Corps data showing most lockages concluding in 1-2 days. Most Industrial Lock wait times were reported at 11 hours or less, but intermittent delays spiked to 25 hours or more during the week. Vessels passing Algiers Lock saw wait times up to six hours, while Colorado Lock waits were posted up to 12.5 hours.
Mississippi River:
The conclusion of dredging activities at Mile 591 on the lower Mississippi River allowed resumed movements through Miles 591-595. Travel delays through the area were expected to persist into the week ahead. More than 70 tows were reportedly queued to pass the site on Dec. 7.
Falling water levels at St. Louis further constricted lower Mississippi River drafts to 10 feet for barges and vessels, down from 10-11.5 feet at various points along the river in the prior report. The river gauge at St. Louis returned a 0.4-foot depth reading on Dec. 15, increasing from (-)0.05-feet on Dec. 8. In addition, a Wind Advisory on Dec. 15 was in effect for the St. Louis area through 2:00 a.m. on Dec. 16.
Shoaling reported at the upper river’s Mile 171 necessitated dredging in the area. Intermittent navigation stoppages and delays were expected through approximately Dec. 21.
Locks 1-12 on the upper Mississippi River were closed for the winter navigation season on Dec. 15. Lock 15 and Lock 24 are expected to shut for seasonal maintenance on Jan. 1, 2022, with Lock 24 scheduled to reopen on Jan. 31.
Lock 15 is slated to reopen on March 3, while Locks 5 and 7 were due to return for the spring season on March 11. March 17 will see Locks 5A, 8, and 10 resume lockages, while Lock 4 is tentatively set to reopen on March 21.
Corps data showed vessels delayed by up to 14 hours at Lock 27 through the week.
Illinois River:
Diving operations that began on Dec. 7 to repair the Valley City Railroad Bridge, located at Miles 61-62 on the Illinois River, were projected to conclude on Dec. 17. The work has interrupted movements daily between 7:00 a.m. and 4:00 p.m.
Lock operators were heard lowering wickets at Peoria Lock on Dec. 14 due to rising water levels, allowing boats through the navigational pass. Prior to the wickets’ lowering, intermittent waits through the site were noted up to 7.5 hours.
The Corps has scheduled a repair and maintenance project at Brandon Road Lock from May 9 through Sept. 8, 2022. Daytime travel will be unavailable from May 9 through Aug. 14, followed by a total shutdown from Aug. 15 through Sept. 4. Daylight-hour closures will return on Sept. 5-8, followed by the resumption of normal operation on Sept. 9. A 70-foot width limit will be in effect on all lockages while the project is underway.
Dresden Island Lock delays were quoted up to 5.5 hours for the week. Boats passing LaGrange Lock saw wait times up to 12.5 hours.
Ohio River:
The Montgomery Lock main chamber is shut through Dec. 22 for planned maintenance and repairs, forcing tows to lock one barge per turn through the secondary chamber. Delays swelled to 7-9 days in each direction during the week, increasing from 5-7 days in the prior report.
Hannibal Lock main chamber repairs reportedly ended on schedule on Dec. 10. Additional repairs proposed by the Corps would prompt navigational shutdowns between July 5 and Oct. 8, 2022. Emergency hydraulic repairs at Markland Lock concluded on Dec. 8.
The Dashields Lock auxiliary chamber remained closed to transport due to an underwater obstruction blocking the lower miter gate. Passage through the site remained possible through the main chamber.
A Cannelton Lock repair proposed by the Corps would affect primary chamber travel between July 5 and Nov. 11, 2022. Traffic is expected to run through the auxiliary chamber while work is underway.
Miter gate work kicked off in early November at the Tennessee River’s Kentucky Lock concluded during the week, allowing traffic to resume through the site. Vessels were previously reported detouring through Barkley Lock and the Barkley Canal, adding 1-2 days of travel time in each direction. Minimal delays were reported on Dec. 15.
Primary chamber work at Wilson Lock scheduled for Feb. 23 through April 28, 2022, was expected to prompt detours through the secondary chamber. The main chamber is currently anticipated to open for a single time during the closure, on April 1-3.
The Cumberland River’s Barkley Lock will undergo a round of main chamber shutdowns daily between 6:00 a.m. and 6:00 p.m., on Jan. 15-30, 2022. Proposed maintenance at Cheatham Lock will likely disrupt navigation between May 16 and Aug. 4, 2022.
Transit through the Allegheny River’s Lock 6 continued to be reported as unavailable due to a damaged miter gate anchorage.