Subsequent resurfacing work along Interstate 495 followed along the remainder of the freeway leading south to I-95 near Newport. That work ran through 1994 to July 1995.4
The Wilmington bypass originally included four interchanges. They were located at U.S. 13 (Dupont Highway), SR 9A (Terminal Avenue), 12th Street and U.S. 13 (Philadelphia Pike). The Edgemoor interchange was planned in 1985 and completed by 1989. The new ramps linked I-495 with U.S. 13 (Governor Printz Boulevard) and SR 3 (Edgemoor Road) in an industrial area along the Delaware River.
The diamond interchange with 12th Street provides access to Downtown Wilmington from Interstate 495. Plans for the 12th Street extension in the 1970s included options for a multi-lane arterial or expressway to a new bridge across Brandywine Creek at 14th and Poplar Streets. Community opposition resulted in a March 1982 revision of the proposed route, moving it further north to 16th Street. Ensuing events however ultimately led to the cancellation of the 12th Street Connector.5
Interstate 95 between U.S. 202 (Concord Pike) and I-495 at Claymont underwent major reconstruction in 2000. Opened to traffic in 1968, the original concrete deteriorated throughout the 1990s, leading to the six-month project. While underway, one direction of I-95 was shut down for a three month period so that crews could rubblize the existing concrete and overlay it with a new type of asphalt material. Through traffic was diverted onto I-495. As a result, Interstate 495 improvements included expansion of the northern and southern interchange lanes available to and from I-95 and new access from I-495 south to U.S. 13 north and from U.S. 13 south to I-495 north at Exit 1. This work was completed in June 2000. Signs at the south end of I-495 were also replaced and reassurance shields were installed all along Interstate 495. The was significant because very few markers were posted for I-495 along the mainline prior to 2000.
Preceding the I-95 reconstruction, a late 1999 proposal advocated renumbering I-495 as Interstate 95. The plan outlined renumbering I-95 through Wilmington as either Business Loop I-95 or Interstate 195. It never came to fruition due to objections from Wilmington city leaders on losing I-95.
The 4,800 foot long bridge over the Christina River was completed in 1974. It closed on June 2, 2014, following inspections revealing that four support columns tilted by as much as 2.4 degrees from vertical. A succeeding emergency repair project stabilized the bridge supports and re-leveled a 400 foot portion of the deck. Both directions of the span reopened by August 23, 2014, with the $40 million project continuing through the end of the year.6