It runs from just north of the Long Island Expressway (Interstate 495 or I-495) at exit 71 and a traffic circle at CR 104 in Riverside.

[2] It initially heads southward on Edwards Avenue as a four-lane surface road, crossing the Peconic River to access an incomplete diamond interchange with I-495.

[citation needed] Here, CR 94 changes names to Nugent Drive, becomes a four-lane expressway, and becomes concurrent to NY 24, whose eastern segment begins at the exit.

[3] The route continues on a slightly northeastward track for the next 2.5 miles (4.0 km), passing through a mostly undeveloped area preserved by Suffolk County and the state of New York.

One populated area exists in the vicinity of the intersection with Pinehurst Boulevard about 1 mile (1.6 km) east of the freeway.

[citation needed] As the route approaches the hamlet of Riverhead, it makes a more pronounced turn to the northeast, taking it within close proximity of the river once more.