A proposed Missouri Department of Transportation spending plan spanning the next five years calls for $3.97 billion in construction work, the bulk of which will be used for maintenance.

That plan includes a $118 million project to upgrade portions of the north corridor of Interstate 270 in St. Louis County, including pavement work and bridge improvements. The project was highlighted as a priority in the East-West Gateway Council of Governments’ most recent long-range plan. It could be a “design-build” project, in which MoDOT would set the project’s goals and budget, and the contractor that best meets those goals within budget would craft its design and schedule.

Interstate 270 also could get $12 million in pavement work between Interstates 44 and 55, as well as an additional $19 million for more pavement work and barrier wall improvements between Interstate 170 and the Chain of Rocks Bridge.

The funding plan also calls for nearly $20 million in pavement work on Interstate 270 from Highway 364 to Interstate 44.

Other proposed local projects include tens of millions of dollars of work on the Poplar Street Bridge, and $14 million in bridge work along Interstate 55 from Virginia Avenue to Arsenal Street in St. Louis.