Advocates say the trend shows the success of the city’s efforts to promote dockless devices not just as recreational rides, but as a practical means of commuting to work or running errands.

At a news conference, federal officials face queries about hazardous materials still on the vessel and sidestep the question of whether measures should have been taken to protect the bridge piers from marine traffic.

Ship personnel issued a Mayday distress call ahead of the crash. Gov. Moore says six workers making repairs to the bridge, who warned cars from continuing onto it, remain missing.