ST. LOUIS, Mo. (KMOX) — The Missouri Department of Transportation and its contractor, KCI Construction, will begin construction on roadway improvements associated with the CityArchRiver 2015 project on Monday.

These improvements will ultimately lead to the Park Over the Highway (aka lid over I-70), which will physically connect the Arch grounds to the city of St. Louis.

MoDOT spokesman Andrew Gates says early construction work will center around access to the Martin Luther King Bridge.

However, work later this year will change how downtown traffic gets on I-70.

“We’ll have to close ramps from Memorial to the interstate, then we’ll be flipping those ramps,” Gates explained.

Work for the next several months will center around access to the Martin Luther King Bridge, and work on Washington Avenue and Memorial Drive between Pine and the MLK bridge.

Right now, drivers can expect daytime lane closures underneath I-70 at the MLK from 7 a.m. to 3 p.m. Drivers will be able to get to and from the bridge during work as well as during morning and evening commutes. Information about significant closures or traffic changes will be released when available.

In 2014, MoDOT has planned two weekend closures of I-70 downtown over a weekend to remove bridges over the interstate.

One closure is anticipated to be in January, the other sometime after April. The exact dates and detour routes for those closures have yet to be determined. Information on the closures will be released as soon as it becomes available.

Also in April 2014, drivers can expect traffic patterns to change downtown during work on Memorial between the Poplar Street Bridge and Pine. Crews will also shift traffic on Market and Chestnut between the Arch Grounds and Broadway. Details on the dates and extents of those traffic shifts will be released when they become available.

This work is part of CityArchRiver 2015, a transformational project that will enhance the Gateway Arch experience for all visitors.

The project will create a seamless park experience from the city to the Mississippi River, providing visitors with a more vibrant and safer place to visit, enjoy, and return.


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