Blonde bridge blunder

Earlier this month, Steve and I drove to Arizona for a friend's wedding. We decided to go the Vegas route and check out the strip since I hadn't been there in years (and I probably won't go back for years - I know the rest of Vegas is probably a lovely place, but I maintain the strip is just bizarre...like a cracked-out Disneyland). We stayed the night to break up the drive and early the next morning we headed over Hoover Dam and on to Phoenix.

There was construction everywhere, especially driving near the dam (of course during which time I heard every "dam" joke Steve could concoct) where they are building a new bridge. Steve, having passed that way more often than I have, knew all about the bridge construction. When you read the conversation below, you'll understand why, following said conversation, Steve told me I had to blog it. It's only fair, since I have called out some of his more impressive moments here.

Steve: Wow, that's going to be weird to drive over.
Me: What? The bridge?
Steve: Yep.
Me: Drive on that thing? No way! It's way too steep - they can't have cars drive on that!
Steve: Um...
Me: Seriously! You'd never make it up the side.
Steve: Yeah...so that's the support for the bridge. They're going to put the actual bridge on top.

Oh.

Yep, in my foggy early-morning daze, I thought this was the actual BRIDGE (sorry for the weird angle - we were driving):




Good thing I'm not an engineer. You can see my concern though, were this the actual bridge, yes?