More changes are in store for commuters in the northwestern suburbs as the Minnesota Department of Transportation closes the ramp from westbound Interstate 94 to southbound I-494.

The ramp closed Monday night and will remain closed through mid-October, MnDOT officials said.

Motorists will be detoured onto southbound Hwy. 169 to westbound I-394 to I-494.

The closure is likely to put additional pressure on southbound Hwy. 169, which is already seeing increased traffic levels because of the construction on I-494 between the Fish Lake Interchange and I-394. That project, which will run through the 2016 construction season, has I-494 reduced to two southbound lanes in the mornings and two northbound lanes in the evenings and to one northbound lane in the mornings and two northbound lanes in the evenings.

Starting on Tuesday, the ramp from Bass Lake Road to southbound I-494 will close through mid-October. Motorists will be detoured via southbound Northwest Blvd., then west on Rockford Road to I-494. Drivers on 494 will not be able to exit at Bass Lake Road, either. Motorists will exit at Rockford Road, then follow Rockford Road east to Northwest Boulevard, then north to Bass Lake Road.

MnDOT has been working all summer on I-494 between Maple Grove and Plymouth to add a third lane between the I-694/94 split and Hwy. 55. The project also includes repairing concrete and adding noise walls along the interstate.

The Fish Lake interchange sees about 109,000 vehicles each day.