LIE Exit 70 HOV Lane Expansion: What Long Island Drivers Need to Know

What’s Happening

Crews are working along the Long Island Expressway (I-495) near Exit 70 (County Route 111, Manorville) on a multi-phase project that extends the high-occupancy vehicle (HOV) lane eastward and reconstructs ramp geometry at the interchange. This is one of the eastern-most stretches of continuous HOV coverage on the expressway, and extending it is part of a long-standing NYSDOT effort to reduce the peak-hour bottleneck that forms when the HOV lane drops and three mainline lanes have to absorb the merge.

The scope covers pavement rehabilitation, new overhead signage, upgraded drainage, and reconstructed shoulders capable of carrying HOV traffic without narrowing the general-purpose lanes. Work is also being done on the Exit 70 ramps themselves — including longer acceleration lanes eastbound and a reconfigured deceleration lane westbound — which NYSDOT planning documents have flagged for years as a high-incident merge area.

Although the LIE carries well over 100,000 vehicles per day through this segment, most of the pavement work is being staged overnight to protect daytime capacity. That means drivers should expect rolling closures after dark, full ramp closures on select weekends, and long-term shoulder occupancies while barrier, signage, and drainage work proceeds in parallel.

Timeline

NYSDOT has scheduled the HOV extension project to run through multiple construction seasons. The current active phase is expected to continue through the spring and summer of 2026, with additional pavement and striping work slated for the fall. Interim milestones include completing eastbound ramp reconstruction, shifting traffic onto temporary alignments so crews can access the median, and opening short sections of the extended HOV lane to traffic as they are completed.

A full project completion is expected by late 2026 or early 2027, depending on weather delays and material availability. Drivers should treat the published end dates as targets rather than hard deadlines — it is common for LIE corridor projects of this scale to push into a second construction season.

Impact on Drivers

Expect the heaviest impacts during overnight hours, typically 9 p.m. to 5 a.m. weekdays and extended windows on weekends. Single-lane and double-lane closures in both directions are common during these windows, with paving crews occupying the left shoulder and median. Daytime drivers will mostly see narrowed lanes, shifted alignments, and reduced shoulder width rather than full closures.

Rush-hour impacts are most noticeable eastbound on weekday afternoons, where the merge from Exit 70 into a narrowed work zone can stack traffic back toward Exit 71 (Route 24). Westbound morning commuters should budget extra time if traveling between Riverhead and Medford; the shoulder work frequently reduces effective capacity to two lanes during incidents.

Ramp closures at Exit 70 are the most disruptive for local drivers. When the ramp is closed overnight, the nearest full-service alternative is Exit 71 (Route 24) to the east or Exit 69 (Wading River Road) to the west. 511NY posts ramp-specific closure schedules 24–48 hours in advance.

Alternative Routes

For through traffic bypassing the Exit 70 work zone, Sunrise Highway (Route 27) remains the most reliable alternative between Exit 59 and Riverhead. Drivers coming from Nassau headed to the East End often find Sunrise faster than the LIE during active construction windows, even accounting for the traffic signals near Patchogue and Shirley.

Local drivers within Manorville, Ridge, and Calverton can use County Route 111 and Middle Country Road (Route 25) to bridge between exits without entering the expressway at all. If your destination is north of the LIE — Wading River, Riverhead, or the North Fork — William Floyd Parkway (County Route 46) paired with Route 25 is a dependable workaround during overnight ramp closures.

Drivers headed toward the South Fork can exit earlier at Exit 68 (William Floyd Parkway) and pick up Sunrise eastbound, skipping the Exit 70 work zone entirely.

Safety Notes

Work zones on the LIE are hazardous even when everything is going well. Posted work-zone speed limits through this area are reduced, and fines for speeding in an active work zone are doubled under New York State law.

A few project-specific cautions: crews are frequently operating in the median, which means workers and equipment can be on the driver’s left — an unusual position that is easy to miss at highway speed. Do not tailgate through narrowed lanes; the new barrier-to-barrier width leaves very little room to react to a sudden brake ahead. Keep both hands on the wheel and resist the urge to look sideways at the work zone. Trucks merging from Exit 70 during construction phases may have shorter-than-normal acceleration distance, so be ready to adjust your speed on approach.

If you see flashing amber arrows, move over one lane if it is safe to do so — New York’s Move Over law applies to construction vehicles as well as emergency responders. Expect short traffic-holds during concrete pours and crane lifts; these are typically 5–15 minutes and are unavoidable.

Sources

• NYSDOT Region 10 project planning documents
• NY 511 roadwork alerts (511ny.org)
• Suffolk County Department of Public Works notices