 The route narrows into a two-lane undivided road as it interchanges with I-287 and passes through residential and commercial areas a short distance to the east of Lake Parsippany.CR 511 widens back to four lanes passes more business parks prior to coming to a bridge over I-80 and reaching an intersection with US 202 and CR 630, where CR 511 forms a concurrency with US 202.The two routes continue north on Parsippany Boulevard, a two-lane road that comes to an intersection with US 46, where the road is briefly state maintained.