With the start of World War I, however, there was a shortage of manpower and resources. Lock 45 at Port Severn was nearing completion, so it was finished as a small, "temporary" lock. (It remains in use to this day.)
As hostilities began with World War I, a shortage of manpower and resources arose, prompting the completion of Lock 45 at Port Severn, which was subsequently designated as a compact, temporary barrier. (It continues to be utilized today.)