What inference It the canal was justly hailed as an enterprise of breathtaking boldness is what?

The inference that the canal was hailed as an enterprise of breathtaking boldness suggests that its construction involved significant challenges and risks, yet it was pursued with ambition and determination. This recognition implies that the project required innovative engineering, substantial investment, and a visionary approach to overcome obstacles. The phrase highlights both the ingenuity behind the endeavor and the profound impact it had on transportation, trade, or connectivity.