I will be up here photographing this again tomorrow night - thought I should share something from my last visit up here!
This may be my favorite spot to shoot in Austin. I love this bridge, and doing long exposures here is quite fun, especially if you get a decent sunset sky. This was taken a few months back - can't remember when, exactly - but I was up here alone and happily firing away. I was also using my Vu Filters 10 stop filter, which is a magical piece of equipment. It's basically a solid black piece of glass that goes in front of your lens, extending exposure times considerably. So much fun. I think I will have to break that bad boy out again tomorrow!
You can find this spot and many more to shoot in Austin on my list of the best spots to photograph in Austin. Give it a look!