Long Island Expressway Exit 68 — CR 46 (William Floyd Parkway)
The Exit 68 interchange (CR 46 (William Floyd Parkway)) near Shirley / Yaphank — crash history, alternate-route guidance, and nearby emergency services.
No crashes recorded at this interchange yet · Suffolk County
Interchange Details
- Serves
- CR 46 (William Floyd Parkway)
- Nearest Community
- Shirley / Yaphank
- County
- Suffolk County
- Alternate Routes
- William Floyd Parkway (CR 46) · Sunrise Highway (NY 27)
Main route to Fire Island ferries and Brookhaven National Laboratory; the LIE service roads fully terminate here.
Interchange data verified against the NYSDOT I-495 exit list (2026-06-09).
About Exit 68
Exit 68 sits along the Long Island Expressway (I-495), a 66-mile interstate corridor carrying more than 200,000 vehicles a day , serving CR 46 (William Floyd Parkway) near Shirley / Yaphank. We haven't yet logged a reported crash at this specific interchange — but on Long Island Expressway as a whole, rear-end collisions during the AM peak when westbound traffic stacks dominate the crash record. Any incidents we track at Exit 68 will appear below as they're reported.
Risk is highest during weekday 6–10 a.m. westbound and 3–7 p.m. eastbound. Drivers unfamiliar with the interchange geometry — especially those exiting versus those merging on — are disproportionately represented in the crash record.
Recorded Incidents
No crashes recorded at Long Island Expressway Exit 68 yet. We track every reported incident on this corridor — see recent LIE incidents in Suffolk County in the meantime.
Safety Notes for Exit 68
Know your exit, and commit early. The biggest single contributor to crashes at Long Island Expressway interchanges is late lane changes. If you're taking Exit 68, move to the appropriate lane at least a half-mile in advance; on Long Island Expressway specifically, rear-end collisions during the AM peak when westbound traffic stacks drive most of the collision volume we record.
Mind the merge. Whether you're entering or leaving the mainline, yield to through traffic and match their speed before pulling into the travel lane. Sudden braking in the deceleration lane produces rear-end collisions — the single most common crash type on Long Island Expressway.
If you need to divert. When Long Island Expressway is blocked at or near Exit 68, the most common detour is Northern State Parkway and Jericho Turnpike. Check 511NY for live conditions before choosing an alternate; closures and secondary crashes can cascade quickly in this corridor.
Peak-hour caution. Expect elevated risk during weekday 6–10 a.m. westbound and 3–7 p.m. eastbound. During these windows, leave extra following distance and keep your phone stowed — distracted-driving citations are concentrated at congested interchanges like this one.
Nearby Hospitals & Police
Long Island Expressway passes through multiple towns; these are the nearest emergency resources we've catalogued along this route.
Great Neck, Nassau
Hospitals
- North Shore University Hospital — 300 Community Dr, Manhasset, NY 11030 | (516) 562-0100
- Long Island Jewish Medical Center — 270-05 76th Ave, New Hyde Park, NY 11040 | (718) 470-7000
Police
- NCPD 3rd Precinct — 200 Plandome Rd, Manhasset, NY 11030 | (516) 573-6300
- Great Neck Village Police Department — 48 Grace Ave, Great Neck, NY 11021 | (516) 487-8900
Manhasset, Nassau
Hospitals
- North Shore University Hospital — 300 Community Dr, Manhasset, NY 11030 | (516) 562-0100
- St. Francis Hospital — 100 Port Washington Blvd, Roslyn, NY 11576 | (516) 562-6000
Police
- NCPD 3rd Precinct — 200 Plandome Rd, Manhasset, NY 11030 | (516) 573-6300
Frequently Asked Questions
Where is Exit 68 on the Long Island Expressway?
Exit 68 on the Long Island Expressway (I-495) serves CR 46 (William Floyd Parkway) near Shirley / Yaphank, in Suffolk County. Main route to Fire Island ferries and Brookhaven National Laboratory; the LIE service roads fully terminate here.
What are the best alternate routes if the LIE is blocked near Exit 68?
When the LIE backs up at or near Exit 68, drivers most often divert to William Floyd Parkway (CR 46), Sunrise Highway (NY 27). Check 511NY for live conditions first, since secondary delays can cascade quickly in this corridor.