Traffic congestion at the 120 Bypass and Highway 99 could be addressed in the near future by Caltrans.Manteca municipal staff has been told by the state agency that changes may occur to the interchange as part of a project targeted to get underway in 2020 to relieve congestion on both freeways by adding a second southbound Highway 99 connector lane for the eastbound 120 Bypass.That more than likely would mean extending the merge lane on Highway 99 that is impossible to do without making significant changes to the Austin Road interchange. The work is designed to reduce congestion and enhance safety, especially on the deadly last mile of the 120 Bypass eastbound lanes.“This project will likely include the reconfiguration of the Austin Road overcrossing resulting in costly alteration to most of the city’s planned improvements that were included in the Austin Road/(Highway) 99 project,” noted City Engineer Kevin Jorgenson II in a memo to the City Council.It is a development that provides a silver lining to the news that Austin Road Business Park — an envisioned job creation Mecca for Manteca consisting of 1,500 acres of business parks, commercial and residential uses — is on hold for the foreseeable future.The City Council is being asked on Tuesday to terminate contracts with George Reed Inc. and Mendoza & Associates for a combined $2.4 million to upgrade the off ramps and part of Moffat Boulevard as part of the initial phase of Austin Road Business Park improvements.Work originally was supposed to start in early 2016.That means $2.2 million in city transportation fees paid by developers can now go toward other road projects. The money originally was committed to connecting Atherton Drive between Union Road and Airport Way.There is a potential for claims from the contractors involved.Planning for upgrades for the transition from the 120 Bypass to Highway 99 was initiated by the San Joaquin Council of Governments working with Caltrans.