Northern State Parkway (NSP) — Accident History & Road Conditions

Traffic conditions, accident reports, and safety information for the Northern State Parkway on Long Island — the primary north shore commuter parkway through Nassau and Suffolk County.

15 incidents tracked — last incident May 5, 2026

Length 26 mi
Speed Limit 55 mph
Avg Daily Traffic 100,000
Exits 45
Counties Nassau, Suffolk

Route Overview

From
Grand Central Parkway (Queens)
To
Veterans Memorial Highway (Hauppauge)
Also Known As
Northern State, NSP

Overview

The Northern State Parkway forms the northern tier of Long Island’s parkway network, running 26 miles from its junction with the Grand Central Parkway in Queens to Veterans Memorial Highway in Hauppauge, Suffolk County. Carrying approximately 100,000 vehicles per day, it serves as the main commuter artery for residents of Long Island’s north shore communities — Manhasset, Westbury, Plainview, Commack, and Hauppauge — providing access to the Grand Central Parkway and ultimately to the Triborough Bridge and New York City.

Like its sister road to the south, the Northern State Parkway was a Robert Moses project, conceived as part of his sweeping Long Island parkway network in the 1920s. Moses intended it as a scenic leisure corridor linking northern Nassau County communities to Caumsett State Park and other north shore preserves. Construction proceeded in segments through the 1930s and 1940s, with the Suffolk County extension to Hauppauge completed in the 1960s. The parkway’s stone bridges, broad medians, and landscaped roadside reflect the original aesthetic vision, even as the surrounding communities have grown into dense suburban sprawl that the designers never anticipated.

The Northern State Parkway intersects the LIE at Interchange 40 and connects to the Meadowbrook and Wantagh Parkways heading south. The Bethpage State Park entrance at Exit 35 is a major traffic generator during spring and summer, as Bethpage Black — host of multiple U.S. Open golf championships — draws thousands of spectators and golfers on peak days.

Commuter Patterns and Peak Hours

The Northern State Parkway carries its heaviest volumes during weekday AM and PM commute windows. Westbound AM peak traffic runs from 7:00 to 9:30 AM as commuters head toward the Grand Central Parkway and the Triborough Bridge. The eastbound PM peak runs from 5:00 to 7:30 PM. These peaks are more pronounced than on the LIE for the parkway’s length because the Northern State serves a predominantly residential corridor, meaning rush-hour volume is less spread across the day and peaks more sharply.

During the US Open golf tournament at Bethpage State Park — when held at Bethpage Black, which has hosted the championship multiple times — the Exit 35 area experiences event-level disruption comparable to a major stadium or arena. Temporary traffic management plans involving state troopers, variable message signs, and parking overflow management are deployed by NYSDOT, but the surrounding network in Bethpage and Farmingdale becomes severely congested on tournament days.

Alternative Routes When NSP Is Congested

  • Jericho Turnpike (Route 25): Parallel surface road immediately north of the Northern State through most of Nassau County. Serves the same communities with traffic signals at all major intersections.
  • Long Island Expressway (I-495): The primary alternative for east-west travel if the Northern State is closed or severely congested. Vehicles prohibited from NSP due to height or commercial restrictions should use the LIE.
  • Old Country Road: A mid-county east-west surface alternative for trips wholly within Nassau County that don’t require highway speeds.

Dangerous Sections

Exit 35 — Bethpage State Park Road (Farmingdale/Bethpage area): During golf season (April through October), the Exit 35 interchange handles surges of park-bound traffic with limited ramp capacity. The on-ramp geometry is tight, and park visitors unfamiliar with parkway merging create hazards. US Open weeks see traffic conditions on par with major event disruptions.

Exit 40 — Round Swamp Road (Old Bethpage): This is the last off-ramp before the NSP transitions to the LIE. Drivers who miss their exits often brake abruptly or attempt last-second lane changes, contributing to rear-end and sideswipe crashes in this segment.

Towns Along This Route

Current Conditions

Check back for real-time conditions.

Recent Incidents

No recent incidents to display.

Accident Statistics

NYSDOT data show 1,200–1,600 annual crashes on the Northern State Parkway. Single-vehicle run-off-road crashes and rear-end collisions comprise the majority. The Nassau County segments see higher crash frequency; the Suffolk segments see higher crash severity.

Current Conditions 96 active

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 40S - NY 110 (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 40S - NY 110 (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE westbound

accidentsAndIncidents on Northern State Parkway

Crash on Northern State Parkway westbound at Exit 29A - Long Island Expressway WB (North Hempstead) All lanes closed

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 39 - Round Swamp Road (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 39 - Round Swamp Road (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 40S - NY 110 (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 39 - Round Swamp Road (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 37A - Long Island Expressway (Oyster Bay) and Exit 39 - Round Swamp Road (Huntington) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Drainage improvements and milling and overnight roadwork and utility work on Northern State Parkway eastbound between Exit 36A - NY 135 (Oyster Bay) and Exit 37A - Long Island Expressway (Oyster Bay), Monday April 20th, 2026 thru Friday April 24th, 2026, Monday/Tuesday/Wednesday/Thursday, 10:00 PM t

No Data

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5am

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound Exit 33 - Wantagh State Parkway (North Hempstead) to Exit 36S - South Oyster Bay Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5am

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36N - South Oyster Bay Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36N - South Oyster Bay Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Drainage improvements and milling and utility work on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36N - South Oyster Bay Road (Oyster Bay), Monday April 6th, 2026 thru Saturday April 11th, 2026, Monday thru Friday, 10:00 PM thru 05:00 AM All la

No Data

CLOSURE eastbound

accidentsAndIncidents on Northern State Parkway

Crash on Northern State Parkway eastbound Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36N - South Oyster Bay Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 35N - NY 106 (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 35S - NY 106; North Broadway (Oyster Bay) All lanes closed until 5am

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 37 - Manetto Hill Road (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

roadwork on Northern State Parkway

Drainage improvements and milling and roadwork and utility work on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36N - South Oyster Bay Road (Oyster Bay), Monday March 30th, 2026 thru Friday April 3rd, 2026, Monday/Tuesday/Wednesday/Thursday, 10:

No Data

CLOSURE eastbound

roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 35N - NY 106 (Oyster Bay) All lanes closed until 5:00 A.M.

All lanes closed

CLOSURE eastbound

accidentsAndIncidents on Northern State Parkway

Crash on Northern State Parkway eastbound between Exit 26N - New Hyde Park Road (North Hempstead) and Exit 27S-Shelter Rock Road (North Hempstead) All lanes closed

All lanes closed

ACCIDENT eastbound

Crash on Northern State Parkway

Crash on Northern State Parkway eastbound Exit ramp Exit 28S - Willis Avenue (North Hempstead) 1 Right lane of 2 lanes closed

ACCIDENT westbound

Crash on Northern State Parkway

Crash on Northern State Parkway westbound at Exit 41 - Wolf Hill Road (Huntington) right shoulder blocked

ACCIDENT westbound

Crash on Northern State Parkway

Crash on Northern State Parkway westbound between Exit 43 - Commack Road; CR 4 Vanderbilt Parkway (Huntington) and Exit 42S - Deer Park Road; NY 231 (Huntington) 1 Left lane of 2 lanes closed

ACCIDENT eastbound

Crash on Northern State Parkway

Crash on Northern State Parkway eastbound at Exit 35N - NY 106 (Oyster Bay) right shoulder blocked

ACCIDENT westbound

Crash on Northern State Parkway

Crash on Northern State Parkway westbound at Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) right shoulder closed

ACCIDENT westbound

Disabled vehicle on Northern State Parkway

Disabled vehicle on Northern State Parkway westbound at Exit 26N - New Hyde Park Road (North Hempstead) 1 Right lane of 3 lanes closed

ACCIDENT westbound

Disabled vehicle on Northern State Parkway

Disabled vehicle on Northern State Parkway westbound between Exit 26S - New Hyde Park Road (North Hempstead) and Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) right shoulder blocked

ACCIDENT westbound

Crash on Northern State Parkway

Crash on Northern State Parkway westbound Exit ramp Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Left lane of 2 lanes closed

ACCIDENT eastbound

Misplaced commercial vehicle on Northern State Parkway

Misplaced commercial vehicle on Northern State Parkway eastbound at Exit 30 - I U Willets Road (North Hempstead) 1 Right lane of 4 lanes closed

ACCIDENT westbound

Misplaced commercial vehicle on Northern State Parkway

Misplaced commercial vehicle on Northern State Parkway westbound between Exit 42S - Deer Park Road; NY 231 (Huntington) and Exit 41 - Wolf Hill Road (Huntington) right shoulder blocked Truck vs. Bridge

ACCIDENT eastbound

Downed tree on Northern State Parkway

Downed tree on Northern State Parkway eastbound at Exit 28S - Willis Avenue (North Hempstead) All lanes open Exit ramp closed until further notice

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway both directions between Exit 31A - Meadowbrook State Parkway (North Hempstead) and Grand Central Parkway at Exit 24 - Little Neck Parkway (New York) 1 Right lane of 4 lanes closed will also be closing Ramps until 6:00 A.M

1 Right lane closed

CONSTRUCTION both directions

Roving repairs on Northern State Parkway

Roving repairs on Northern State Parkway both directions between START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Right lane of 3 lanes closed until 6:00 A.M.

1 Right lane closed

CONSTRUCTION westbound

Roving repairs on Northern State Parkway

Roving repairs on Northern State Parkway westbound between Exit 29A - Long Island Expressway WB (North Hempstead) and Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) 2 Left lanes of 3 lanes closed until 2:30 A.M.

2 Left lanes closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 32 - Post Avenue (North Hempstead) and Exit 33 - Wantagh State Parkway (North Hempstead) 1 Left lane of 3 lanes closed until further notice

1 Left lane closed

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway both directions between START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Right lane of 3 lanes blocked until 6:00 A.M.

1 Right lane blocked

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 32 - Post Avenue (North Hempstead) and Exit 33 - Wantagh State Parkway (North Hempstead) 1 Left lane of 3 lanes closed until 3:00 A.M.

1 Left lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 32 - Post Avenue (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Right lane of 3 lanes closed until 4:00 A.M.

1 Right lane closed

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway both directions between Exit 31A - Meadowbrook State Parkway (North Hempstead) and Exit 29 - Roslyn Road (North Hempstead) 1 Left lane of 4 lanes closed westbound; left shoulder closed eastbound until 3:00 P.M.

1 Left lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 30 - I U Willets Road (North Hempstead) and Exit 31 - Glen Cove Road (North Hempstead) 2 Right lanes of 4 lanes closed until 3:00 A.M.

2 Right lanes closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 31A - Meadowbrook State Parkway (North Hempstead) and Grand Central Parkway at Exit 24 - Little Neck Parkway (New York) 1 Right lane of 4 lanes closed until 5:00 A.M.

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound area of Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Left lane of 4 lanes closed until 3:00 P.M.

1 Left lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 40S - NY 110 (Huntington) and Exit 39 - Round Swamp Road (Huntington) 1 Right lane of 2 lanes closed until 2:00 A.M.

1 Right lane closed

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway both directions between Exit 31A - Meadowbrook State Parkway (North Hempstead) and Grand Central Parkway at Exit 24 - Little Neck Parkway (New York) 1 Right lane of 4 lanes closed until 6:00 A.M.

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound area of Exit 31A - Meadowbrook State Parkway (North Hempstead) 2 Right lanes of 4 lanes closed right lane and partial exit ramp closed until 3:00 P.M.

2 Right lanes closed

CONSTRUCTION westbound

Overnight roadwork on Northern State Parkway

Overnight roadwork on Northern State Parkway westbound between DIRT RD (Westbury) and Exit 31A - Meadowbrook State Parkway (Westbury), Friday May 1st, 2026 thru Saturday May 2nd, 2026, 10:00 PM thru 03:00 AM 2 Right lanes of 3 lanes closed

No Data

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway westbound between Exit 32 - Post Avenue (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead), Monday April 27th, 2026 thru Tuesday April 28th, 2026, Monday/Tuesday, 11:00 AM thru 03:00 PM 2 Right lanes of 4 lanes closed

No Data

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound between Exit 32 - Post Avenue (North Hempstead) and Powells Lane (North Hempstead), Thursday April 30th, 2026 thru Friday May 1st, 2026, 11:00 PM thru 03:00 AM 2 Left lanes of 3 lanes closed

No Data

CONSTRUCTION eastbound

Overnight roadwork on Northern State Parkway

Overnight roadwork on Northern State Parkway eastbound between I U WILLETS RD (Old Westbury) and Exit 31 - Glen Cove Road (North Hempstead), Wednesday April 29th, 2026 thru Thursday April 30th, 2026, 11:00 PM thru 03:00 AM 2 Right lanes of 3 lanes closed

No Data

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway westbound at Exit 40S - NY 110 (Huntington), Tuesday April 28th, 2026 thru Wednesday April 29th, 2026, 11:00 PM thru 03:30 AM 2 lanes of 4 lanes closed

No Data

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound at Exit 39 - Round Swamp Road (Huntington), Monday April 27th, 2026 thru Tuesday April 28th, 2026, 11:00 PM thru 03:30 AM 2 lanes of 4 lanes closed

No Data

CONSTRUCTION eastbound

Milling, Drainage improvements, Overnight roadwork on Northern State Parkway

Drainage improvements and milling and overnight roadwork on Northern State Parkway eastbound between Exit 36A - NY 135 (Oyster Bay) and Exit 39 - Round Swamp Road (Huntington), Monday April 27th, 2026 thru Friday May 1st, 2026, Monday/Tuesday/Wednesday/Thursday, 10:00 PM thru 05:00 AM 2 Left lanes o

No Data

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 30 - I U Willets Road (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead) 2 Left lanes of 4 lanes closed until 3:00 A.M.

2 Left lanes closed

CONSTRUCTION both directions

Roadwork, Roving repairs on Northern State Parkway

Roadwork and Roving repairs, roadwork on Northern State Parkway both directions between START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) and Exit 31A - Meadowbrook State Parkway (North Hempstead) 1 Right lane of 3 lanes blocked until 6:00 A.M.

1 Right lane blocked

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) 2 Left lanes of 3 lanes closed until 6:00 A.M.

2 Left lanes closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 29 - Roslyn Road (North Hempstead) and Exit 30 - I U Willets Road (North Hempstead) All lanes open Entrance and Exit ramps closed

All lanes open

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 41 - Wolf Hill Road (Huntington) and Exit 42N - NY 231 (Huntington) 1 Left lane of 2 lanes closed until 2:00 P.M.

1 Left lane closed

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway both directions between Exit 31A - Meadowbrook State Parkway (North Hempstead) and START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) 1 Right lane of 3 lanes closed until 6:00 A.M.

1 Right lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 28S - Willis Avenue (North Hempstead) and Exit 31 - Glen Cove Road (North Hempstead) 1 Right lane of 3 lanes closed until 3:00 P.M.

1 Right lane closed

CONSTRUCTION westbound

Roving repairs on Northern State Parkway

Roving repairs on Northern State Parkway westbound between Exit 43 - Commack Road; CR 4 Vanderbilt Parkway (Huntington) and Exit 38 - Sunnyside Boulevard (Oyster Bay) 1 Left lane of 2 lanes closed until 5:00 A.M.

1 Left lane closed

CONSTRUCTION westbound

Roving repairs on Northern State Parkway

Roving repairs on Northern State Parkway westbound between Exit 31A - Meadowbrook State Parkway (North Hempstead) and START ROUTE Northern State Parkway; Grand Central Parkway (North Hempstead) 1 Right lane of 3 lanes closed until 5:30 A.M.

1 Right lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 32 - Post Avenue (North Hempstead) and Exit 33 - Wantagh State Parkway (North Hempstead) 1 Right lane of 3 lanes closed Until 3 PM

1 Right lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 32 - Post Avenue (North Hempstead) and Exit 33 - Wantagh State Parkway (North Hempstead) 1 Right lane of 3 lanes closed Until 3 PM

1 Right lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 44 - Sagtikos State Parkway (Smithtown) and Exit 45 - Sunken Meadow Parkway (Smithtown) 1 Left lane of 3 lanes closed until 3:00 P.M.

1 Left lane closed

CONSTRUCTION eastbound

Overnight roadwork on Northern State Parkway

Overnight roadwork on Northern State Parkway eastbound at Exit 30 - I U Willets Road (North Hempstead), Friday April 24th, 2026 thru Saturday April 25th, 2026, 11:00 PM thru 04:00 AM 2 Right lanes of 4 lanes closed

No Data

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway eastbound at Powells Lane (North Hempstead), Monday April 20th, 2026 thru Tuesday April 21st, 2026, Monday/Tuesday, 11:00 AM thru 02:00 PM 1 Right lane of 3 lanes closed

No Data

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound at Exit 29 - Roslyn Road (North Hempstead) 1 Left lane of 3 lanes closed until 12:00 P.M.

1 Left lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 27S-Shelter Rock Road (North Hempstead) and Exit 28S - Willis Avenue (North Hempstead) 2 Right lanes of 3 lanes closed Until 2 PM

2 Right lanes closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 26N - New Hyde Park Road (North Hempstead) and Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) 1 Left lane of 3 lanes closed until 12:00 P.M.

1 Left lane closed

CONSTRUCTION both directions

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway both directions at Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) 1 Left lane of 3 lanes closed until 3:00 A.M.

1 Left lane closed

CONSTRUCTION eastbound

Overnight roadwork, Milling, Utility work on Northern State Parkway

Milling and overnight roadwork and utility work on Northern State Parkway eastbound between Exit 33 - Wantagh State Parkway (North Hempstead) and Exit 36S - South Oyster Bay Road (Oyster Bay), Sunday April 12th, 2026 thru Thursday April 16th, 2026, Sunday/Monday/Tuesday/Wednesday, 10:00 PM thru 05:0

No Data

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 30 - I U Willets Road (North Hempstead) and Exit 31 - Glen Cove Road (North Hempstead) 2 Left lanes of 4 lanes closed until 4:00 A.M.

2 Left lanes closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 38 - Sunnyside Boulevard (Oyster Bay) and Exit 37A - Long Island Expressway (Oyster Bay) 1 Left lane of 2 lanes closed until 2am

1 Left lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound at Exit 44 - Sagtikos State Parkway (Smithtown) 1 Right lane of 3 lanes closed until 2:00 P.M.

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork on Northern State Parkway westbound at Exit 37 - Manetto Hill Road (Oyster Bay) 1 Right lane of 2 lanes closed until 5:00 A.M.

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound at Exit 36N - South Oyster Bay Road (Oyster Bay) 1 Right lane of 2 lanes closed until 12:00 A.M.

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound west of Exit 36S - South Oyster Bay Road (Oyster Bay) 1 Right lane of 3 lanes closed Until 3 PM

1 Right lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound between Exit 29 - Roslyn Road (North Hempstead) and Exit 25 - Lakeville Road; Marcus Avenue (North Hempstead) 1 Left lane of 3 lanes closed until 3:00 P.M.

1 Left lane closed

CONSTRUCTION westbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway westbound at Exit 42S - Deer Park Road; NY 231 (Huntington) right shoulder closed Until 2 PM

right shoulder closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound at Exit 33 - Wantagh State Parkway (North Hempstead) 1 Right lane of 3 lanes closed until 3:00 P.M.

1 Right lane closed

CONSTRUCTION eastbound

Roadwork on Northern State Parkway

Roadwork, roadwork on Northern State Parkway eastbound between Exit 36S - South Oyster Bay Road (Oyster Bay) and Exit 36B - NY 135 (Oyster Bay) 1 Left lane of 2 lanes closed until 3:00 A.M.

1 Left lane closed

CONSTRUCTION eastbound

Overnight roadwork on Northern State Parkway

Overnight roadwork on Northern State Parkway eastbound between Exit 36S - South Oyster Bay Road (Oyster Bay) and Exit 36A - NY 135 (Oyster Bay), Friday March 27th, 2026 thru Saturday March 28th, 2026, 11:00 PM thru 03:00 AM 1 Left lane of 3 lanes closed

No Data

CONSTRUCTION eastbound

Overnight roadwork on Northern State Parkway

Overnight roadwork on Northern State Parkway eastbound between Exit 36S - South Oyster Bay Road (Oyster Bay) and Exit 36A - NY 135 (Oyster Bay), Thursday March 26th, 2026 thru Friday March 27th, 2026, 11:00 PM thru 03:00 AM 1 Right lane of 3 lanes closed

No Data

Data from 511NY, updated May 6, 8:01 AM

Recent Incidents 15 total

minor

Right Lane Closed After Minor Crash on Northern State Parkway

North Hempstead · May 5, 2026

13h ago
major 1 injured

Two-Vehicle Crash Injures One on Northern State Parkway at I-495 Interchange

· Apr 24, 2026

12d ago
major 1 injured

Three-Vehicle Crash Injures One on Northern State Parkway Exit 37A

· Apr 21, 2026

15d ago
moderate

Two-Vehicle Crash Causes Property Damage on Northern State Parkway Exit 37A

· Apr 21, 2026

15d ago
major 1 injured

Driver Arrested for DWI After Crash Near Exit 25 on Northern State Parkway

· Apr 19, 2026

17d ago
moderate

Two-Car Crash Causes Property Damage at Northern State Exit 36N

· Apr 16, 2026

20d ago
moderate

Two-Vehicle Collision Causes Property Damage at Northern State Exit 42S

· Apr 15, 2026

21d ago
moderate

Two-Vehicle Crash Causes Property Damage at Northern State Exit 42S

· Apr 14, 2026

22d ago
View all 15 incidents on Northern State Parkway →

Accident Statistics

15 Total Reports
1 Critical
0 Fatal

Dangerous Sections

  • 35
  • 40

Towns Along This Route

Safety Resources

Frequently Asked Questions

How many accidents happen on the Northern State Parkway each year?

The Northern State Parkway records approximately 1,200–1,600 reported crashes per year. Like the Southern State, its narrow parkway-era lanes and limited shoulders contribute to higher injury severity per crash than more modern divided highways.

What are the most dangerous sections of the Northern State Parkway?

Exit 35 (Bethpage State Park Road, Farmingdale area) and Exit 40 (Round Swamp Road/Old Bethpage) are the highest-incident locations. Exit 35 experiences heavy congestion from Bethpage State Park visitors during golf season. Exit 40 is the last interchange before the parkway transitions to the LIE at its eastern terminus, creating aggressive late-lane-change crashes.

Does the Northern State Parkway allow trucks?

No. Like all New York State parkways, the Northern State Parkway prohibits commercial vehicles, trucks, and buses. The low bridge clearances (some as low as 9 feet) physically enforce this restriction. Commercial traffic should use Route 25 (Jericho Turnpike) or the LIE as alternatives.

Where does the Northern State Parkway end?

The Northern State Parkway's eastern terminus is at Veterans Memorial Highway in Hauppauge, Suffolk County, where it connects to the Sagtikos State Parkway (which continues south to the Southern State Parkway). The western end meets the Grand Central Parkway in Queens near LaGuardia Airport.

What is the speed limit on the Northern State Parkway?

The posted speed limit is 55 mph throughout the Northern State Parkway's 26-mile length.