Brookhaven, NY to Greenvale, NY is 42.1 miles and takes about 59 minutes via Long Island Expressway, with a fuel budget near $7 and enough daylight to finish in a day. This trip stays within New York, traversing the Northeast region. It's a relatively short drive, making it ideal for a quick transit or a day trip without much time commitment. Expect a straightforward drive that gets you from point A to point B efficiently.
Main Roads
Road
Distance
Duration
Long Island Expressway
29.4 mi
39m
Horseblock Road
4.2 mi
6m
Cedar Swamp Road
3.6 mi
5m
Northern Boulevard
2.3 mi
3m
Montauk Highway
0.8 mi
1m
North Broadway
0.5 mi
<1m
South Country Road
0.4 mi
1m
North Service Road
0.2 mi
<1m
Longest stretch:
Long Island Expressway
— 29.4 mi, about 39m
Traffic on I-495
Hour-of-day weekday pattern from 16 FHWA count stations on your route.
Peak
2 PM
~4,880 veh/hr typical
Quietest
2 AM
~521 veh/hr
Peak-to-quiet ratio
9.4×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 24 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Brookhaven, NY and Greenvale, NY.
1
Start on CR 36
0.4 mi·46 sec·South Country Road
2
Continue on South Country Road
354 ft·16 sec·South Country Road
3
Turn straight onto CR 80
0.8 mi·1 min·Montauk Highway
4
Turn left onto CR 16
4.2 mi·6 min·Horseblock Road
Use the left lane.
5
Turn left onto Express Drive North
0.2 mi·14 sec·Express Drive North
Use the left lane.
6
Take the ramp
0.2 mi·21 sec
Toward I 495 WEST: New York
7
Merge onto I 495
29 mi·39 min·Long Island Expressway
Use the straight / slight right lanes.
8
Take the exit
0.1 mi·16 sec
Exit 41NToward NY 106 North, NY 107 North, I 495 Alternate: Oyster BayUse the straight / slight right lanes.
9
Turn straight onto North Service Road
0.2 mi·24 sec·North Service Road
10
Turn right onto NY 106; NY 107
0.5 mi·51 sec·North Broadway
11
Continue on NY 106; NY 107
3.6 mi·5 min·Cedar Swamp Road
12
Turn left onto NY 25A
2.3 mi·3 min·Northern Boulevard
Use the left lane.
13
Turn right onto Glen Cove Road
382 ft·10 sec·Glen Cove Road
14
Arrive at destination
Glen Cove Road
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
The midpoint is around 21 miles from Brookhaven, NY, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Heads-up: tricky spots
5 of 8
5 decision points cluster between mile 1.2 and 39.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
1.2 mi into trip|~2m in|CR 16 / Horseblock Road
Turn left onto CR 16 / Horseblock Road
Lane positioning matters here
Use the left lane.
5
5.5 mi into trip|~8m in|Express Drive North
Turn left onto Express Drive North
Lane positioning matters here
Use the left lane.
5
5.9 mi into trip|~9m in|I 495 / Long Island Expressway
Merge onto I 495 / Long Island Expressway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
8
35.3 mi into trip|~48m in
Take the exit toward NY 106 North, NY 107 North, I 495 Alternate: Oyster Bay
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 41N
Toward NY 106 North, NY 107 North, I 495 Altern...
5
39.7 mi into trip|~55m in|NY 25A / Northern Boulevard
Turn left onto NY 25A / Northern Boulevard
Lane positioning matters here
Use the left lane.
Fuel & Cost
Regular Gas
$6.81 one way
$13.62 round trip
$4.11/gal25.4 MPG avg15 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.46
$7.39
$14.78
premium
$4.85
$8.04
$16.07
diesel
$4.80
$7.95
$15.90
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$7
Estimated CO2 emission: 14.7 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $4 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
12.6
0
$4.42
$2.02
Efficient EV
10.5
0
$3.68
$1.68
EV Truck/SUV
16.8
0
$5.89
$2.69
Gas CO2
15 kg
EV CO2
5 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 15, 2026
Origin
Brookhaven, NY
Late night
in Brookhaven on Sunday
Local time
5:36 AM
EDT
Current temp
94°F
Areas Of Smoke
W 12 mph23% chanceLive forecast
Heat Advisory
Heat Advisory issued July 15 at 2:02PM EDT until July 15 at 9:00PM EDT by NWS Upton NY
Heat Advisory
Heat Advisory issued July 15 at 2:02PM EDT until July 15 at 9:00PM EDT by NWS Upton NY
Destination
Greenvale, NY
Late night
in Greenvale on Sunday
Local time
5:36 AM
EDT
Current temp
99°F
Areas Of Smoke
NW 15 mph23% chanceLive forecast
Heat Advisory
Heat Advisory issued July 15 at 2:02PM EDT until July 15 at 9:00PM EDT by NWS Upton NY
Heat Advisory
Heat Advisory issued July 15 at 2:02PM EDT until July 15 at 9:00PM EDT by NWS Upton NY
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
5 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
59m on the road
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route is largely highway, with 70% of the driving on major roads. You'll spend a significant portion on the Long Island Expressway, with the longest continuous stretch covering 29.4 miles. The drive transitions to surface roads like Horseblock Road and Cedar Swamp Road, which will likely feature more local traffic and frequent exits as you approach your destination.
70% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 29.4 mi on Long Island Expressway.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on Long Island Expressway and Horseblock Road. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.2 miles in near CR 16 / Horseblock Road.
Driving Effort5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 42.1 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 1.2 miles (CR 16 / Horseblock Road): Lane positioning matters here; at 5.5 miles (Express Drive North): Lane positioning matters here; at 5.9 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
220 ft9 ft
Total Climb
264 ft
Total Descent
102 ft
Highest Point
220 ft
~30.1 mi in
Elevation Range
211 ft
Detours Along the Way
Tagged by where each one fits in your drive — first break, midpoint, final stretch.
Brookhaven is the largest town in Suffolk County, part of Long Island, New York. With 485,000 residents (2020). It includes a patchwork of villages and other communities, and is the only town on the island to touch both the Long Island Sound and Atlantic Ocean. The villages of Belle Terre, Bellport, Lake Grove, Mastic Beach, Old Field, Patchogue, Poquott, Port Jefferson, and Shoreham are semi-autonomous, and provide their own services in addition to those provided by the town. Other prominent communities include Mount Sinai, Stony Brook, and Fire Island, a long and car-free resort island off the south coast of the town.
Top landmarks
•Wardenclyffe Tower — early experimental wireless transmission station designed and built by Nikola Te...
•West Meadow Beach Historic District — historic district in the United States
Doable as a same-day drive at 59m. Total distance: 42.1 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
59m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (70%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 29.4 miles on Long Island Expressway. The full list of main roads is in the Roads section above.
Yes — we found about 2 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: at 1.2 miles (CR 16 / Horseblock Road): Lane positioning matters here; at 5.5 miles (Express Drive North): Lane positioning matters here; at 5.9 miles (I 495 / Long Island Expressway): Merge point - match speed before joining. Lane positioning matters here.
Yes — Fire Island National Seashore, Hamilton Grange National Memorial and General Grant National Memorial (6 total within detour distance). See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Greenvale, NY before heading back.
