I grew up in a city that had 2 intersecting rivers, so to me it seems normal to have a few bridges. Right now, I live across the lake from the city proper, so I deal with The Bridge on a regular basis. This is the only bridge across a fairly long lake, built at the narrowest point; it's just under 1 mile long. Here's a view of the bridge from my balcony:
Some pictures taken while driving across the lift bridge
It's charming to have to wait for a sailboat to pass by the first time. After a few times, though, you wonder what the hell people are thinking when they decide to go under the bridge during rush hour.
This is the section of the bridge on my side of the lake. As you see, there are 3 lanes. The direction of traffic in the middle lane alternates about twice an hour. When this bridge was built, it was big enough to accomodate traffic to and from the sleepy little town. But in the last 10 years, there has been a population explosion, and delays in crossing the bridge are common. At rush hour, it may add 10 minutes or so to one's drive. But come summer, when the snowbirds return and the tourists arrive in droves, it can get pretty hairy - it wasn't unusual to add an extra 45-60 minutes to my drive home because of congestion going across the bridge. There is an online bridge cam site which allows you to see what traffic is like in either direction. Unfortunately, there's not really any other option to get across, unless you drive 45 minutes north to the top of the lake, and then drive for 45 minutes down a windy 2 lane road that runs along the other side of the lake. I got a fair amount of knitting done this summer while stuck in bridge traffic.