Interstate 470 motorists will face some more long-term traffic problems near Lee's Summit starting tonight.
Highway crews will be closing the ramp from westbound I-470 to westbound Missouri 350 starting at 9 tonight. The kicker: The ramp will be closed more than two months, not reopening until Sept. 18. The work is part of the new interchange under construction at Blue Parkway just east of the U.S. 50 interchange.
Overall, $46 million is being spent to build new interchanges at Blue Parkway and at Pryor Road a little farther west. The two interchanges are linked by connector roads that will cross over U.S. 50. Last month, road crews shut down the ramp from westbound U.S. 50 to eastbound I-470. The ramp won't reopen until Aug. 14.