Once again, if you’re heading into Portland this weekend, you’ll need to know about some freeway work that might alter your travel plans. The Oregon Department of Transportation says that they have to replace a barrier on the Marquam Bridge that’s been hit several times in recent months, so I-5 northbound over the bridge will be closed from 10 pm tonight until 6 am tomorrow morning. Traffic will be detoured onto I-405. In addition, there’s also a closure of the off-ramp that links I-205 to I-84, a closure that will run from 9:30 tonight until 7 am tomorrow morning. Again, detours will be posted.