Portland, Ore. – Traffic alert if you drive up to Vancouver at night time. Two lanes of I-5 north on the Interstate bridge will be closed for three nights in a row starting tonight. Crews will be doing work on signs, lights, and pavement. One lane of I-5 north will stay open all weekend. But again, two lanes of I-5 North at the bridge will be closed overnight tonight, Saturday, and Sunday. All lanes will stay open during the day this weekend.