Burnside's lieutenants, however, doubted the practicality of their chiefs plan. "There were not two opinions among the subordinate officers as to the rashness of the undertaking," wrote one corps commander. Nevertheless, in the foggy pre-dawn hours of December 11, Union engineers crept to the riverbank and began laying their pontoons. Skilled workmen from two New York regiments completed a pair of bridges at the lower crossing and pushed the upstream spans more than halfway to the fight bank; then the sharp crack of musketry erupted from the river-front houses and yards of Fredericksburg. | Burnside's lieutenants, however, doubted the practicality of their chiefs plan. "There were not two opinions among the subordinate officers as to the rashness of the undertaking," wrote one corps commander. Nevertheless, in the foggy pre-dawn hours of December 11, Union engineers crept to the riverbank and began laying their pontoons. Skilled workmen from two New York regiments completed a pair of bridges at the lower crossing and pushed the upstream spans more than halfway to the fight bank; then the sharp crack of musketry erupted from the river-front houses and yards of Fredericksburg. |