The road then takes a sharp right turn along the sound then loops around in the opposite direction and passes by the ferry port to Block Island, before returning to the intersection with CR 49.

County Route 77B was the former west wye of CR 77 leading east towards Montauk Point State Parkway.

County Route 78 is Church Street in the southeastern part of the town of Islip, from NY 27 to Division Avenue in Patchogue.

In 1972, Veterans Highway was acquired by the New York State Department of Transportation and designated NY 454, but Church Street remained CR 78.

The second includes North Bay Avenue in Eastport, New York, which leads truck drivers from another low bridge for the same line within the community, then turns right overlapping Old Country Road into Speonk, where it turns south on North Phillips Avenue and ends at Montauk Highway just south of the Speonk (LIRR station).

Heading north, CR 82 intersect CR 50, immediately followed by an at-grade crossing of the Long Island Rail Road Montauk Branch near the Babylon Yard for the Babylon station, and then serves the west end of West Islip Boulevard, which runs along the north side of the tracks and becomes Orinoco Drive.

As Udall's Road, CR 82 passes through another semi-residential area and then runs underneath the underpass of NY 27 between exits 40 and 41.

County Route 83A was a formerly proposed spur that was intended to run from an unbuilt segment of CR 83 to Cedar Beach in Mount Sinai.

What passes for a major intersection at this point is Little Plains Road, which is also part of New York State Bicycle Route 25A.

The road was once planned to be replaced by a four-lane divided highway known as CR 107, which would've extended it down towards Belmont Lake State Park and West Babylon.

This area fell victim to a widespread wildfire that burned a significant portion of the core of the Pine Barrens in 1995.

In between the segment along Moneybogue Bay, the residential beach houses continue to line the road, but more of them are surrounded by shrubs and small trees.

The pattern of beach houses blocked by greenery continues, but primarily along the Atlantic Ocean side of the road.

However, sparse north side residences begin turning up again across the street from the Hampton Ocean Resort, and soon after intersecting Mermaid Lane, Neptune Beach Club.

Suffolk County Department of Public Works added CR 90 to the system on October 10, 1966, and officially describes the road as follows; Beginning at C.R.

Beyond Horse Block Road, the unbuilt ROW for the Central Suffolk Highway can be found beneath the CR 101 bridge over the LIRR Main Line.

Motorists are left with no doubt that they're in Huntington Manor when CR 92 runs along the east side of Oakwood Park, near the southwest corner of the grade crossing with the Port Jefferson Branch of the Long Island Rail Road, and immediately intersects 11th Street, which serves as the southern end of the multiplex with New York State Bicycle Route 25A.

As the area returns to becoming more residential, the barely noticeable multiplex ends at the intersection of CR 11 (Pulaski Road).

A former segment of the road can be found on the east side between Jefferson Elementary School and north of Waywood Place.

In the opposite direction, a southbound hill-climbing lane exists between Finch Place and the previously mentioned high school athletic field.

Among the locations within this section are Sayville's train station, Johnson Avenue, Tariff Street, and the abandoned Island Hills Golf and Country Club.

Between the intersections of NY 454 and Smithtown Avenue (unsigned CR 29), one can find the end of runway #6 for the Long Island MacArthur Airport.

North of the interchange the last section to be widened was between Peconic Street and Johnson Avenue due partially to the crossing of the Ronkonkoma Branch of the Long Island Rail Road.

Just as the road crosses the Islip–Smithtown town line, it finally terminates at CR 16 (Smithtown Boulevard) in Lake Ronkonkoma.

County Route 94 overlaps NY 24 between I-495 and CR 104, but was intended to be extended north and then west into Wading River.

However it marks the west end of a section of the parkway that gets a widened pine tree-lined median before it approaches Belmont Lake State Park.

In addition, Suffolk County had planned to realign CR 25 from this interchange north through exit 69 on the Long Island Expressway.

The proposed widening of the Moriches Bypass was also to include a section of Montauk Highway from the east end of Frowein Road into downtown Eastport.

It also includes an underpass for a driveway to the Holtsville Branch of the Internal Revenue Service near the Waverly Avenue interchange.

One last intersection with a housing development that replaced a former dirt road leading to the village of Bellport can be found before CR 99 approaches the Brookhaven town landfill and curves left before terminating at an incomplete at-grade interchange with CR 16 (Horse Block Road) in Brookhaven.