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Intermittent Lane Closures on I-59 in St. Tammany Parish Scheduled for August 28 Due to Herbicide Application

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Published on August 27, 2025
Intermittent Lane Closures on I-59 in St. Tammany Parish Scheduled for August 28 Due to Herbicide ApplicationSource: Unsplash/Jon Tyson

Those gearing up for an interstate journey through St. Tammany Parish, take note. The Louisiana Department of Transportation and Development (DOTD) has scheduled a mobile herbicide operation that will lead to intermittent lane closures on both sides of the I-59, as detailed in a recent announcement. The official Louisiana Department of Transportation and Development advisory, states the roadwork will be underway tomorrow. Driving conditions could be impacted from 10:00 a.m. to 12:00 p.m., depending on the direction of travel.

For the early birds heading northbound, starting at the crack of dawn, the left lane from the I-12/I-59/I-10 interchange up to the Louisiana/Mississippi state line will be closed from 10:00 a.m. to 11:00 a.m. While southbound travelers chasing the tail of the morning rush will face similar restrictions, with the corresponding left lane closure starting at the state line stretching to the interchange, set to occur from 11:00 a.m. to 12:00 p.m. With weather permitted to influence the schedule, delays can be expected albeit there will be no vehicle restrictions and emergency vehicles will maintain access throughout the operation.

Transportation officials have communicated that this herbicide treatment is necessary for maintaining road safety and visibility. By clearing unwanted vegetation from the roadside, Louisiana Department of Transportation and Development aims not just to enhance the aesthetics but to ensure drivers’ line of sight is unimpeded and shoulder areas remain clear for vehicle pull-offs. Motorists are advised to remain vigilant and make allowances for expected delays while the operation is in process.

Travelers looking for alternative routes or additional information can find updates available on the Louisiana Department of Transportation and Development website. Besides the intermittent lane closures, smooth sailing is promised for those adhering to the guidelines and respecting work zone boundaries, navigating their trips around the specified hours. DOTD urges the public to be mindful of the onsite crews and exercise caution maneuvering past the work areas, ensuring a safe transition for all parties involved throughout these essential maintenance efforts.