 As 1941 progressed, the construction of the emergency yards accelerated rapidly and keels were laid upon the new building ways.Well before the first wave of expansion was underway or the original 60 British ships were delivered, shortly after the Lend-Lease Bill was passed by Congress in March, a second wave of 306 additional ships was ordered, including 112 of the emergency type; the remainder was standard-type vessels and tankers.This additional number of ships required additional building ways, so the Maritime Commission authorized new ways to be added to the yards in both the Long Range and Emergency Programs and also contracted for a second yard to be built for the Kaiser-managed yards in Richmond, California.