We rafted under this bridge, so when we had the chance to stop and see it up close, we jumped on it (so to speak). The park service has a small area for parking and a path and stairs for walking out to a scenic overlook. It takes very little time and costs nothing. The most interesting part for us was that there are two bridges that you float beneath when you do this rafting trip, a railroad trestle bridge and this giant bridge. When you float beneath them, you don't get a good appreciation for just how much taller and more impressive the gorge bridge is. It's breathtaking from up above and not so big a deal from down below. The scale seems completely different. The park service post claims that the climb up is "strenuous." It's probably three flights of steps. If that's strenuous, you need to work on your endurance. Fun fact: according to NPS, you can fit the Washington Monument and two Statues of Liberty one on top of the others underneath this bridge.
This review is the subjective opinion of a TravelPod member and not of TravelPod.com.