| Answer | Crossword Clue |
|---|---|
| ONCE | "... I built a railroad . . . " |
| ONCE | ".. I built a railroad ...": Depression song lyrics |
| ONCEI | ".. built a railroad ..." |
| ONCEI | "... built a railroad..." |
| embankment | A bank of earth or stone built to carry a road or railroad over an area of low ground |
| embankments | A bank of earth or stone built to carry a road or railroad over an area of low ground |
