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BATON ROUGE, La. (AP) — Louisiana’s transportation department is warning that drivers on Interstate 10 may face slowdowns in the already traffic-clogged capital region over the weekend.

Survey work is planned through Monday as part of an I-10 widening project intended for the Baton Rouge area.

Crews will be traveling the interstate to scan the roadway using mobile light detection technology, a surveying method that measures distance with laser lights and 3-D representations.

The Department of Transportation and Development says the survey technology will prevent multiple lane closures and cut down the number of survey crews.

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But police will still be blocking traffic in some areas to allow for the survey work.