Ask any engineering student about famous bridges and the Tacoma Narrows has a great chance of coming up.  The original bridge failed pretty spectacularly due to aeroelastic issues.  It was replaced and the bridge has stood since without significant issues other than overcrowding.  Consequently, a second Bridge was added a few years ago.  The pair span the narrows and provide a roadway for the busy local traffic.

The hike around Point Defiance Park takes you out onto the overlooks the narrows and, as you move along the trail, you get differing views of the bridges.  The further south you get in the park, the clearer the view is of the whole span.  I grabbed a few shots of the water and the bridges and also shot some closer shots to make a pano when I got home.