The Long Island Expressway in Nassau County

An exit-by-exit guide to I-495 through Nassau County (Exits 33–48) — interchanges, alternate routes, and every crash we've tracked on this stretch.

43 LIE incidents tracked in Nassau County · Full LIE hub

43 Tracked Crashes
10 Critical
0 Fatal

LIE Exits in Nassau County

Exit 33 — Lakeville Road / Community Drive

Lake Success / Great Neck · Alternates: Northern State Parkway, Marcus Avenue

Exit 34 — New Hyde Park Road

New Hyde Park / North Hills · Alternates: Northern State Parkway, Jericho Turnpike (NY 25)

Exit 35 — Shelter Rock Road

Manhasset / North Hills · Alternates: Northern State Parkway, Searingtown Road

Exit 36 — Searingtown Road / Port Washington

Albertson / Port Washington · Alternates: Northern State Parkway, Northern Boulevard (NY 25A)

Exit 37 — Willis Avenue

Mineola / Roslyn Heights · Alternates: Northern State Parkway, Old Country Road

Exit 38 — Northern State Parkway (east) / Meadowbrook State Parkway

East Hills / Old Westbury · Alternates: Northern State Parkway, Meadowbrook State Parkway

Exit 39 — Glen Cove Road

Roslyn / Glen Cove · Alternates: Northern State Parkway, Northern Boulevard (NY 25A)

Exit 40 — NY 25 — Jericho Turnpike

Jericho · Alternates: Jericho Turnpike (NY 25), Northern State Parkway

Exit 41 — NY 106 / NY 107 (North Broadway)

Hicksville / Oyster Bay · Alternates: NY 106, NY 107

1 crash

Exit 42 — Northern State Parkway

Bethpage / Plainview · Alternates: Northern State Parkway, South Oyster Bay Road

Exit 43 — South Oyster Bay Road

Bethpage / Syosset · Alternates: South Oyster Bay Road, NY 135

Exit 44 — NY 135 — Seaford–Oyster Bay Expressway

Syosset / Woodbury · Alternates: Seaford–Oyster Bay Expressway (NY 135), Northern State Parkway

Exit 45 — Manetto Hill Road

Woodbury / Plainview · Alternates: Manetto Hill Road, NY 135

Exit 46 — Sunnyside Boulevard

Plainview · Alternates: Northern State Parkway, Old Country Road

Exit 48 — Old Country Road (signed Round Swamp Road)

Old Bethpage / Farmingdale · Alternates: Round Swamp Road, Old Country Road

Exit cross-streets verified against the NYSDOT I-495 exit list (June 2026). Crash counts come from our own incident corpus.

Why the LIE Backs Up in Nassau County

Westbound 6–10 a.m. (commuters heading toward Queens and the city) and eastbound 3–8 p.m. are the worst windows. Backups frequently stack 10–20 miles westbound from the Suffolk line.

Recurring bottlenecks

  • The Cross Island Parkway interchange (Exit 31) on the Queens line, which meters everything entering Nassau from the west.
  • The Northern State Parkway merges and the Glen Cove Road retail corridor (Exit 39), where weekday volume routinely overwhelms the merge.
  • The Seaford–Oyster Bay Expressway interchange (Exit 44), a heavy expressway-to-expressway weave.
  • The HOV-lane corridor, where limited entry/exit openings force high-speed weaving across several lanes.

Alternate routes when the LIE is blocked

  • Northern State Parkway (parallels the LIE the length of Nassau)
  • Jericho Turnpike (NY 25)
  • Northern Boulevard (NY 25A)
  • Hempstead Turnpike (NY 24) for points south

Always confirm live conditions on 511NY before diverting — secondary delays can cascade onto the alternates quickly.

Recent LIE Incidents in Nassau County 43 total

Frequently Asked Questions

Which LIE exits are in Nassau County?

Exits 33 through 48 are in Nassau County, running from Lakeville Road (Exit 33) at the Queens line east to Old Country Road / Round Swamp Road (Exit 48), which sits on the Nassau–Suffolk county line. Note that Exit 40 is Jericho Turnpike (NY 25), not Round Swamp Road — a common mix-up.

Where is the worst LIE traffic in Nassau County?

The heaviest recurring backups are westbound during the morning peak, stacking from the Suffolk line toward Queens. Key choke points are the Cross Island Parkway interchange (Exit 31), the Northern State Parkway merges, the Glen Cove Road retail corridor (Exit 39), and the Seaford–Oyster Bay Expressway interchange (Exit 44).

What are the best alternate routes to the LIE in Nassau County?

The Northern State Parkway parallels the LIE the full length of Nassau and is the primary alternate. Surface options include Jericho Turnpike (NY 25), Northern Boulevard (NY 25A), and — for points south — Hempstead Turnpike (NY 24). Check 511NY before diverting.

Explore More

Long Island Expressway hub →

Full I-495 overview, history, and live conditions

LIE HOV lane rules →

Hours, occupancy, and where the carpool lane runs

LIE in Suffolk County →

The other half of the expressway

Nassau County towns →

Town-by-town crash data and emergency services

Towns along the LIE in Nassau County

Lake SuccessNew Hyde ParkManhassetAlbertsonMineolaEast HillsRoslynJerichoHicksvillePlainviewBethpageSyossetWoodbury
← Back to the Long Island Expressway hub