Sunday night, crews will modify the westbound I-84 off-ramp.
Each ramp change will give motorists more room to merge. Work will take place overnight from 10 p.m. to 5 a.m. on each occasion.
The Idaho Transportation Department is reconstructing the Vista Interchange. The Vista Interchange project is expected to be completed in late summer 2010.
ITD and the Idaho State Police warn motorists to slow down and pay attention when driving in work zones, where increased speeding fines and other penalties apply. Motorists are encouraged to plan ahead and dial 5-1-1 or visit 511.idaho.gov for information on the state highway or interstate system.