Overnight traffic impacts start tonight for drivers on I-90 between Post Falls and CDA, including lane reductions, on-and off-ramp closures at SH-41, and a traffic shift for westbound drivers. TONIGHT: I-90 will be reduced to a single lane in each direction between Huetter Rest Area and Greensferry Road from 8pm to 5 am TOMORROW: Overnight on- and off-ramp closures at the SH-41 Interchange begin from 8pm to 5am, through the end of the week. Ramps will re-open each morning. Starting tomo