ST. LOUIS (KSDK) – Drivers planning to head to downtown St. Louis via Interstate 70 this weekend might need to make alternate plans.

The Missouri Department of Transportation plans to close a section of westbound I-70 between Poplar Street Bridge and Pine, starting at 8 p.m. Saturday. An eastbound lane will also close with full closures of eastbound for up to 15 minutes.

The closures are a part of the new Walnut Street Bridge, which is a part of the CityArchRiver Park over the Highway Project.

The closure was expected to happen last weekend, but MoDOT delayed the work.

All lanes should be reopen by noon Sunday.