| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| This dam across the Columbia River created Franklin D. Roosevelt Lake, a reservoir of more than 9 million acre-feet | the Grand Coulee Dam | $1,600 | DJ | ENGINEERING MARVELS | 2024-04-24 | #9088 | |
| The USA's largest producer of hydropower, this Washington structure has 12 million cubic yards of concrete | the Grand Coulee dam | $2,000 | DJ | ENGINEERING | 2012-02-23 | #6319 |