N.J. Stat. Ann. § 27:7-37

If the construction of a state highway will affect a comprehensive plan of improvement made or to be made by one or more municipalities, the commissioner may determine to conform as nearly as practicable to that plan of improvement and may determine to acquire lands outside of the uniform width of the highway. Such lands may be acquired by negotiation or condemnation and may be exchanged or sold and conveyed by the commissioner in order to aid in effectuating the comprehensive plan of improvement.