Rising water in the Mississippi River has prompted the U.S. Army Corps of Engineers to start patrolling levees twice a week from Baton Rouge south.

Water levels reached above the 11-foot trigger point in New Orleans, which starts extra inspections and imposes certain restrictions on activity near the levees. The water levels in New Orleans were at 12.3 feet Monday and were expected to get to 13 feet on Wednesday. The water levels will start to fall by the weekend, according to the Corps.

In Baton Rouge, the water level was at 31 feet Monday afternoon and was expected to get up to 32 feet Wednesday before going down the rest of the week, according to the Lower Mississippi River Forecast Center. That’s well below the 35 feet flood stage where the river would overflow its banks without levees in place.

Restrictions during this high water period include banning transportation of heavy loads over the levee and prohibiting underground work within 1,500 feet of the levee. There are waivers considered on a case by case basis.

Anyone needing to do work is asked to call the local levee district.