Construction on an interchange with the Delaware Memorial Bridge approach at Farnhurst began on July 12, 1950. On August 16, 1951, the Delaware Memorial Bridge opened to traffic. US 40 was rerouted to use the new Delaware Memorial Bridge to cross the Delaware River, being realigned to follow US 13 north from Hares Corner and Farnhurst. Upgrades to the Farnhurst interchange were finished in July 1961 that provided a connection to the Delaware Turnpike that opened on November 14, 1963. In 1954, there were plans to replace the intersection with DE 41/DE 141 in Basin Corner with a modified cloverleaf interchange in an effort to reduce traffic congestion. Construction on the interchange began in September of that year. The interchange between US 13/US 40/US 202 and DE 41/DE 141 was completed in 1956. Plans were made to widen the Philadelphia Pike to a four-lane road between Bellevue Road and Claymont in 1954. The widening project was completed in 1956.