ST. LOUIS ( KTRS) The Missouri Department of Transportation says Interstate 44 between I-270 and Highway 109 will be closed Monday night after rush hour and will probably remain closed through the rest of the week. Tom Blair with the Missouri Department of Transportation says as the floodwaters overtake I-44 by Tuesday tomorrow morning, motorists will have to take Highway 100, or Manchester Road, and Interstate 64 and Interstate 70 to reach their destinations.

Officials are also keeping a close eye on 47 and 50 at Union, which is close to going under. You can use the MoDOT app on your phone or view closed roads at MoDOT dot org.

Residents and businesses in the levee-protected area of Valley Park have until noon Tuesday to evacuate. Volunteers are busy piling sandbags in areas of Eureka and Pacific ahead of the rising waters. According to the National Weather Service, the Meramec River is expected to crest near Valley Park at 43.7 feet by Wednesday morning.

Meanwhile, Missouri American Water is asking customers in a large area of South St. Louis County to conserve water over the coming days. Flooding along the Meramec River may force Missouri American Water to shut down its South Plant, which takes in water from the Meramec for distribution in South St. Louis, as of this Wednesday, May 3. Water company officials say given current river level forecasts, South Plant may have to remain offline until Saturday, May 6. Communities affected are Fenton, Mehlville, Oakland, Lemay, Marlborough, Webster Groves, Crestwood, Shrewsbury, Grantwood Village, MacKenzie, Affton, Sunset Hills, Wilbur Park, Sappington, Green Park, Lakeshire,
Valley Park and portions of unincorporated STL County.