I was quite impressed with the numerous switchbacks and grid of electricity towers on the side of the road as we approached the new bridge. Bordering Nevada and Arizona, the new bridge across from the Hoover Dam is an impressive structure that provides another way to access NV from AZ. We did not try walking across the new bridge, but there are stairs that allow access to this (about 50 steps) and are a bit steep.
There is a parking structure beside the dam that charges a $7 fee. This allows you to walk across the old bridge, do a bit of shopping at the store, or have a meal at the High Scaler Cafe.
Just another option on how to spend half a day in LV without hitting the casinos!