Drivers woke up to some changes on the bridges Thursday morning. Three lanes of traffic started moving on the southbound bridge, but one of those lanes is carrying traffic north. Over on the northbound bridge, traffic has been reduced to one lane of northbound travel. So far, both drivers and workers say traffic is flowing smoothly, although the new adjustments also come with a slow down to 35 mph. This isnt the end of the changes. Starting Monday, the lane on the northbound bridge will only be open during the day., workers will shut it down at night.