While Snoqualmie Pass does not have an annual closure like other passes in the Cascades, it does suffer from vehicle restrictions and occasional days-long shutdowns during the wintertime for avalanche control and clearing collisions. I-90 has several chain-on and chain-off areas on the highway shoulders between North Bend and Cle Elum, including variable-message signage to inform drivers of road conditions. WSDOT estimates that it costs $2-3 million annually to keep Snoqualmie Pass open in the wintertime, which sees an average snowfall of and about 120 hours of closures per year.