The NJ Department of Transportation (to whom these gas tax revenues would be going) should either already have or come up with a comprehensive list.
After all, it is not responsible for the following vehicular roadway/structure/facility work:
-The New Jersey Turnpike Authority's maintenance of existing highway facilities and capital $2.2 billion NJ Turnpike Interchange 6 to 9 Widening, Garden State Parkway Interchange 36 to 80 Widening, and numerous interchange improvement projects are done with toll revenues.
-The Port Authority of NY & NJ is responsible for all tolled NJ to Staten Island and Manhattan crossings, at least four local NY/NJ airports, and NJ ports; the Delaware River and Bay Authority owns tolled NJ to Delaware crossings, and most tolled NJ to Pennsylvania crossings are maintained by the Delaware River Port Authority of PA & NJ.
-Individual NJ county departments of public works are responsible for maintaining their respective county roads/bridges, while municipalities are generally responsible for maintaining their respective local roads/facilities.
So in my rudimentary assessment, that leaves interstate highways 76/8/80/195/287/280/295, all NJ state and U.S. highways to the NJ DOT.
A special case is the ongoing Pulaski Skyway redecking, for which at least some funding is coming from the cancelled ARC tunnel.