Bridge Spring Arch is a 1.5 mile out and back trail located near Boulder City, NV. The trail is rated as moderate and primarily used for hiking.
The Hike from trailhead to arch took us a little over an hour because of many sidestops along the way to look at geologic formations, and flora and fauna. I went with my three kids (11, 10, 8) and none of the bouldering or dry falls were beyond their abilities. They are experienced campers and hikers so that should not be used as an indicator for taking a novice child out. Some of the dolomite was quite sharp when used as a hand hold going down.
We have already agreed to come back again after spring bloom as there is plenty of evidence of a multitude of dormant plant species, butterflies should be abundant as well.