The Kissena Corridor project was also supposed to include the construction of a major storm sewer through the corridor, which the Parks Department said was necessitated as a result of "the great extent of this natural drainage basin." In 1942, the federal War Production Board barred the construction of the Corridor Sewer, due to steel requirements for the World War II effort. Groundbreaking ceremonies for the sewer project were held on April 1, 1947, at the intersection of Lawrence Street and Fowler and Blossom Avenues, near the modern-day Queens Botanical Garden west of Kissena Park. On February 19, 1948, the final contract for the project, including the trunk line from 188th Street to Francis Lewis Boulevard, was authorized from the Board of Estimate. On February 27, the Queens borough sewer engineer announced that the cost of the sewer project would run to over $10 million, $2.25 million higher than the previous figure. The main trunk of the Corridor Sewer was completed by September 1948, although many of the feeder lines had yet to be constructed.