I noticed the same thing, Scandi. It does make you wonder how well the town was really searched. :/ In Haleigh's case, they did ask to go inside and look around in homes without a SW. As long as they were given permission, it was fine. I thought it was mentioned they did search inside homes, but maybe that was only direct players' homes including Lindsey's.
Makes me wonder if they physically searched around and under that bridge at all. :/ I just don't think they did. Again, the weeds didn't look at all disturbed in the photo which was taken days after she went missing.