U.S. Gulf:
Daytime navigation was restricted through the West Canal’s Calcasieu Lock from 7:00 a.m. to 6:00 p.m., Monday through Thursday, through late August. Calcasieu Lock is located at Mile 238.5.
Guidewall construction efforts underway at Bayou Sorrel Lock were estimated to run through February 2023, stopping travel Monday through Friday between 6:30 a.m. and 5:00 p.m. daily. Delays were expected up to 12 hours, although normal operations were projected to resume weekly on Saturday and Sunday. The work was reportedly paused for the week, with a restart expected on July 11.
Paused Bayou Sorrel Lock bridge repairs were expected to resume on July 5 and run for an estimated six weeks. During that time, navigation is scheduled to be unavailable Monday through Thursday between 7:00 a.m. and 11:00 a.m., and again from 1:00 p.m. to 5:00 p.m.
Maintenance operations at Brazos Lock wrapped up in late June after triggering weekday travel shutdowns from 6:30 a.m. to 5:00 p.m. Delays up to 25 hours in recent weeks were generally seen falling below the five-hour mark in early July.
Ten-foot draft limits remained in effect at Miles 113-117 of the Atchafalaya River following a failed effort to correct shoaling in the area. In addition to draft limits, the conditions prompted maximum 600-foot tow lengths, while widths were capped at 70 feet. Tows measuring longer than 400 feet were encouraged to travel with an assist vessel.
Vessels were advised to bypass the restrictions by detouring through the Port Allen Route. Underwater pipelines revealed during a recent hydrograph prompted added transit shutdowns through Little Island Pass, Middle Island Pass, and Riverside Pass.
Unassisted passages through Algiers Lock continued to be subject to length and width restrictions, sources indicated, effectively reducing lockages to four standard barges or two 30,000 mt tankers per pass. Larger tows could transit the site when locking with an assist vessel. Delays were reported in a wide 8-25 hour range during the week.
Construction efforts scheduled through late 2022 at the Belle Chasse Bridge caused intermittent travel delays up to 12 hours during the week, sources said. The structure is located at Mile 3 in the West Canal.
Industrial Lock wait times were noted up to 26 hours during the week.
Mississippi River:
Falling water levels on the lower Mississippi River were noted prompting draft restrictions, with reports indicating maximum drafts at 10.5-11.5 feet, dependent on location and direction of travel. Towing widths and maximum barge counts were also reduced, slowing average per-barge transit times by 10-15%.
Rock removal work at Mile 807 of the lower river was occurring primarily outside of the navigational channel, sources said, with minimal commercial impacts reported.
Power line work underway at Mile 107 on July 7-20 will limit daytime travel availability through the area. One-way traffic is scheduled daily between 4:00 a.m. and 7:00 p.m., and again from 1:00 p.m. to 4:00 p.m., with the site completely closed to navigation between 7:00 a.m. and 1:00 p.m.
Miter gate installation scheduled for Aug. 30 to Nov. 13 at Old River Lock will block direct access to the Red River from the lower Mississippi, requiring detours through the Atchafalaya River. Lock 14 wait times were observed up to seven hours on July 6.
Illinois River:
Repairs and maintenance at Brandon Road Lock, underway since May 9, are anticipated to run through Sept. 8. Movements are limited to overnight hours through Aug. 14, with tow widths capped at 70 feet. Transit will shut entirely between Aug. 15 and Sept. 4, followed by a return to overnight-only travel on Sept. 5-8. Normal operations are expected to resume on Sept. 9.
Wickets were reported in the raised position at both Peoria Lock and LaGrange Lock due to falling water levels on the lower river. Locking was required through both locations due to the raised wickets. As a result, wait times at Peoria Lock were reported up to 10 hours during the week.
Intermittent 5-7 hour delays were reported at Starved Rock Lock during the week, while Corps data showed intermittent six-hour delays through LaGrange Lock.
Ohio River:
Shoaling conditions at Mile 926 of the Ohio River continued to limit transit availability at Miles 920-926, with passage through the area considered on a case-by-case basis. Draft limits were set at a maximum 10 feet for the entire length of the river. No timetable for a return to normal operation was available on July 6.
Work at the Greenup Lock main chamber was scheduled to conclude on June 29, returning travel to the primary chamber and normalizing waits that spiked to 17 hours in the prior week. The project kicked off on May 1, in tandem with a Belleville Lock project that wrapped up on June 24.
Primary chamber miter gate replacements efforts were set to begin on July 5 at Cannelton Lock, blocking use of the chamber through at least Nov. 11. With all travel projected to route through the secondary chamber while the project is underway, that chamber was reportedly closed for maintenance preparations from May 5 through July 1.
Sources confirmed the Hannibal Lock primary chamber going down for miter gate and quoin repairs on July 5. Vessels were expected to lock through the secondary chamber through approximately Oct. 8. Minimal delays were reported for the week through July 6.
The Tennessee River’s Kentucky Lock, which is undergoing a long-term construction project slated to run through 2024, saw intermittent wait times up to 27 hours during the week. Corps data put Wilson Lock waits in the 7-15 hour range.
Repairs to miter gate machinery underway at the Cumberland River’s Cheatham Lock were on the books through Aug. 5. Closures were expected to follow a repeating two-week pattern, with an 11-day total travel closure followed by a three-day period of unrestricted navigation. Significant delays are expected.
Arkansas River:
Ongoing Norrell Lock maintenance operations has the lock shut to navigation daily from 7:00 a.m. to 7:00 p.m., through July 21. Additional daytime closures are schedule for Aug. 1-10; Aug. 21-Sept. 21; Oct. 20-Nov. 18; Nov. 29-Dec. 23; and Jan. 3-31, 2023. Travel through the site will be completely unavailable Sept. 30 through Oct. 9.
Joe Hardin Lock is set to shut for repairs from 7:00 a.m. through 7:00 p.m. daily on Sept. 12-19, and again on Sept. 28-29, a Corps posting indicated. Navigation will be completely unavailable between Sept. 30 and Oct. 9, sources said.