A week later, Lee said the delay at Amelia Court House assured the Confederate defeat and surrender. Some modern historians have emphasized the failure to have an expected pontoon bridge at the Genito Road crossing was the key factor in keeping Lee's trailing divisions from reaching Amelia Court House on April 4. A pontoon bridge had been placed at Goode's Bridge but traffic there became heavily congested because the approaches to Bevill's Bridge also were blocked by high water. Lee did not mention the missing pontoon bridge in his remarks a week later but instead blamed the delay entirely on the lack of supplies at Amelia Court House, but as some historians have pointed out, many of his men and wagons had not arrived at Amelia Court House on April 4 and were not in a position to advance until some time on April 5 even if he had not stopped the others to rest and forage. Historian William Marvel wrote that "as badly as Lee needed to keep moving that night, he needed even more to concentrate his forces."