U.S. Gulf:
New Orleans water levels were observed to fall below the
12-foot high-water stage on May 27, allowing for easing restrictions in the
NOLA area. Persistent action-stage levels noted from the river gauge at Baton
Rouge, La., left restrictions in place above New Orleans, however.
Calcasieu Lock daylight-hour transit restrictions,
recently extended through late August, were noted blocking Monday-Thursday
travel daily between 7:00 a.m. and 6:00 p.m. Calcasieu Lock is located at Mile
238.5 in the West Canal.
Repairs underway through the end of May at Bayou
Sorrel Bridge were noted triggering daytime travel stoppages from 7:00-11:00
a.m. and again from 1:00-5:00 p.m., Monday through Friday. Unrestricted access
was restored on Saturday and Sunday.
Port
Allen Lock repairs were heard to begin on May 31, blocking Monday-Friday
navigation daily from 6:00 a.m. to 6:30 p.m. Delays were expected up to 24
hours for the duration of the project, tentatively scheduled through June 7.
Guidewall construction underway at Bayou Sorrel Lock
limited weekday lockages between 6:30 a.m. and 5:00 p.m., with normal operation
returning on Saturday and Sunday. The project is expected to run into early
2023.
Navigation through the Brazos Locks system was
reported unavailable on weekdays between 7:00 a.m. and 5:00 p.m., with normal
access restored on Saturday and Sunday. The project was expected to continue
into late June.
Shoaling continued to be reported at Miles 113-116
of the Atchafalaya River, necessitating maximum 10-foot draft limits in the
Morgan City, La., area, a Coast Guard bulletin indicated. Additionally, tow
lengths were capped at 600 feet, while tows running longer than 400 feet were
encouraged to travel with an assist vessel. Widths were limited to 70 feet.
Vessels could bypass the restrictions by detouring through the Port Allen
Route.
Ongoing towing length and width restrictions in place
at Algiers Lock effectively limited unassisted lockages to four standard barges
or two 30,000 mt tankers per turn. Tows traveling with an assist vessel were
permitted to lock higher barge counts.
Belle Chasse Bridge construction, projected to
continue through the end of the year, was noted triggering intermittent
navigation stoppages during the week. Delays were expected up to 12 hours.
Mississippi River:
Ongoing high water levels impacted movements on the
lower Mississippi River for another week. As a result, maximum barge counts
were reduced by 10-15%, horsepower minimums were in effect, and southbound
bridge navigation was limited to daytime hours only for larger vessels through
a number of urban areas.
The river gauge at Baton Rouge was reported at 29.9
feet on June 1, just shy of the 30-foot action stage, although the gauge was
expected to bounce in and out of action stage throughout the first two weeks of
June. The Vicksburg, Miss., gauge was posted at an action-stage 35.11 feet,
with forecasts predicting levels to fall out of action stage on June 13.
The elevated conditions were largely fed by high
water levels on the Ohio River, the National Weather Service reported. The
gauge at Cairo, Ill., was noted cresting at an action-stage 32.48 feet on June
1. Area waters were anticipated to move below the 32-foot action stage on June
3.
Channel reinforcement underway since May 10 at Mile
807 on the lower river reportedly blocked southbound movements daily between
6:00 a.m. and 6:00 p.m. The project was tentatively scheduled to wrap up on
June 10.
Illinois River:
Repairs and maintenance in progress since May 9 at
Brandon Road Lock were noted impacting navigation. Overnight-only movements were
reportedly in force between May 9 and Aug. 14, after which a total-lock
shutdown will block travel entirely from Aug. 15 to Sept. 4.
Overnight lockages at Brandon Road Lock are expected
to resume on Sept. 5-8, followed by a return to 24-hour lockages on Sept. 9. A
maximum 70-foot width limit was noted in place on all lockages while the
project is underway.
Sources reported lowered wickets at both Peoria Lock
and LaGrange Lock for the week, allowing tows to pass both locations without
locking.
Ohio River:
Belleville
Lock main chamber repair and maintenance was noted in progress from May 1
through June 29. Vessels were reported passing through the secondary chamber
while work is underway, with significant delays expected.
The
primary chamber at Greenup Lock is undergoing repairs between May 1 and June
29, limiting main chamber access and contributing to delays in locking.
A proposed Hannibal Lock primary chamber closure for
repairs and maintenance would span July 5 to Oct. 8. Tows would be expected to
pass the site via the auxiliary chamber should the proposal be adopted, with
delays likely.
Cannelton Lock is scheduled to undergo primary
chamber gate replacement starting on July 5. Transit through the site is
expected to be routed through the auxiliary chamber for the length of the
project, currently slated through Nov. 11. The site’s auxiliary chamber is shut
from May 5 through July 1 for anchor arm replacement.
On the Tennessee River, the main chamber at Pickwick
Landing Lock was reported shut for the week due to potential structural issues,
prompting detours through the secondary chamber.
The Cumberland River’s Cheatham Lock is reportedly shut for planned miter
gate machinery repairs through Aug. 5, triggering significant delays. Shutdowns
at the site are slated to run for 11 days straight, during which no lockages
will be permitted, followed by a three-day period of unrestricted lock access.
Arkansas River:
Elevated conditions were reported on the Arkansas
River during the week, slowing vessel travel and complicating unloading
operations. Forecasts suggested the conditions could extend through the first
two weeks of June.
Norrell Lock repairs and maintenance were scheduled
to block daytime navigation starting on June 1. Scheduled to continue through
Jun 11, the shutdowns were due to be repeated on June 22-July 21; Aug. 1-10; Aug.
21-Sept. 21; Oct. 20-Nov. 18; Nov. 29-Dec. 23; and Jan. 3-31, 2023. Locking
will be unavailable daily between 7:00 a.m. and 7:00 p.m. during scheduled work
days. A complete shutdown is scheduled for Sept. 30 to Oct. 9 at the site.
Joe Hardin Lock will see closures in September and
October, with daytime travel unavailable between 7:00 a.m. and 7:00 p.m. on
Sept. 12-19, and again on Sept. 28-29. The site will shut completely to
navigation over the Sept. 20-Oct. 9 period.