Opening the light rail across Lake Washington over the weekend was an historic moment.

Trains go across bridges regularly, but never before has there been a train over a floating bridge.

Engineers worked on the challenge for years. 

We’ll hear why it’s so complicated and how engineers pulled it off from University of Washington professor Travis Thonstad.

We can only make Seattle Now because listeners support us. Tap here to make a gift and keep Seattle Now in your feed.

Got questions about local news or story ideas to share? We want to hear from you! Email us at seattlenow@kuow.org, leave us a voicemail at (206) 616-6746 or leave us feedback online.

Opening the light rail across Lake Washington over the weekend was an historic moment.
Trains go across bridges regularly, but never before has there been a train over a floating bridge.
Engineers worked on the challenge for years.&nbsp;
We&rsquo;ll hear why it&rsquo;s so complicated and how engineers pulled it off from University of Washington professor Travis Thonstad.
We can only make Seattle Now because listeners support us. <a href="https://www.kuow.org/donate/seattlenow">Tap here</a> to make a gift and keep Seattle Now in your feed.
Got questions about local news or story ideas to share? We want to hear from you! Email us at&nbsp;<a href="mailto:seattlenow@kuow.org">seattlenow@kuow.org</a>, leave us a voicemail at (206) 616-6746 or<a href="https://www.kuow.org/feedback"> leave us feedback online</a>.

Seattle Now is KUOW's flagship daily news podcast. Seattle Now brings you quick headlines, smart analysis, and award-winning local news. New episodes every weekday morning and afternoon. Start and end your day with Seattle Now, from KUOW and the NPR Network.

Seattle Now is KUOW's flagship daily news podcast. Seattle Now brings you quick headlines, smart analysis, and award-winning local news. New episodes every weekday morning and afternoon. Start and end your day with Seattle Now, from KUOW and the NPR Network.

Seattle Now

Opening the light rail across Lake Washington over the weekend was an historic moment.  Trains go across bridges regularly, but never before has there been a train over a floating bridge.  Engineers worked on the challenge for years.   We’ll hear why it’s so complicated and how engineers pulled it off from University of Washington professor Travis Thonstad.