This symbol always points to a road that is certain and predetermined. Also, the dam could possibly have sexual-erotic meaning, as a first sexual experience.
The dam is also a term used for the perineum, the area between rectum and genitalia.
To see a railroad with its winding tracks warns the dreamer of the many turns and intricacies that abound in every phase of life. Walking the railroad ties indicates the many steps ahead in any venture whether it be marriage or business. Walking the rails indicates a need to handle your affairs very carefully. See Plank, Train.
Dreams of railroad tracks symbolize your life choices.
If you are on track with your highest purpose, then this dream will be pleasant and you will feel as though everything is going your way.
If you feel that you have gotten off track, then this dream is giving you the message to engineer your way back in the direction of your dreams. This dream may also be giving you the message to move from the wrong side of the tracks to the side that is most supportive of you, and that perhaps it is time to switch your career or relationship track. See Train and Conductor.