The Missouri Department of Transportation will close all lanes of Interstate 64 in two places in the Chesterfield Valley, west of the St. Louis area, starting at 8 p.m. Friday, April 4.

Crews will be removing the Chesterfield Parkway West bridge and the old Chesterfield Airport Road bridge over the interstate.

All lanes are scheduled to reopen by 5 a.m. Monday, April 7.

Although both detours are relatively short, when taken in combination, drivers heading into or out of the should consider other options, such as using I-270 and I-70, according to the Missouri Transportation Department.

Although drivers will be able to detour around the work, the department warns traffic through the Chesterfield Valley is expected to be heavily congested this weekend.

The Chesterfield Parkway bridge will closed on April 1. Chesterfield Parkway will be closed between Wild Horse Creek Road and Swingley Ridge starting at 8 p.m. Friday, April 4. In addition, the ramp from Route 340 to westbound I-64 will be closed at 8 p.m. Friday, April 4. This will ensure interstate traffic is able to travel smoothly through the detour route.

Detours for the Chesterfield Parkway West bridge closure are:

• Eastbound I-64 - use Exit 19A (Chesterfield Parkway) and take a left onto Wild Horse Creek Road. Follow the road and take the ramp back onto eastbound I-64.

• Westbound I-64 - Use Exit 19A (Chesterfield Parkway West) and bear to the right. At Chesterfield Parkway, take the ramp back down to westbound I-64.

Detours for the Chesterfield Airport Road bridge closure are:

• Eastbound I-64 - Use Exit 14 (Chesterfield Airport Road). Take Chesterfield Airport Road to Spirit of St. Louis Boulevard and turn left. Follow the boulevard and take the ramp back to eastbound I-64.

• Westbound I-64 - Use Exit 14 (Spirit of St. Louis Boulevard) and take the roundabout. Follow the roundabout to the second leg and continue along the new north outer road for I-64. Take the ramp back onto westbound I-64.