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🛣️West IndiaSecondary Highway

National Highway 166S (NH 166S)

Written and checked byRamanathan Virli· Roads & Infrastructure

Dhargalim to Mopa Airport

NH 166S is a secondary/branch national highway connecting Dhargalim to Mopa Airport through Goa. It branches from NH 66.

1

State

2

Major Cities

NH 66

Parent Highway

NH 166S Route Map

NH66 near Dhargalim, Mopa Airport near Varconda

States & Union Territories

NH 166S passes through the following 1 state:

Goa

Major Cities & Towns Along NH 166S

The highway passes through 2 major cities and towns:

●Dhargalim→●Mopa Airport
View on Google Maps

NH 166S Start and End Point

Start Point (Origin)

Dhargalim

End Point (Terminus)

Mopa Airport

Highway Classification

Highway NumberNH 166S
TypeSecondary/Branch Highway
Parent HighwayNH 66
RegionWest India
Numbering SystemPost-2010 (New)
Managed ByNHAI / MoRTH

Speed Limit on NH 166S

Cars, Jeeps & Light Motor Vehicles100 km/h
Buses & Goods Carriers (medium)80 km/h
Heavy Motor Vehicles (trucks, lorries)60 km/h
Motorcycles & Two-Wheelers80 km/h

Speed limits are prescribed under the Motor Vehicles Act and Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific stretches.

Safety Tips for Driving on NH 166S

  • ⚠️Always follow the speed limit — 100 km/h for cars and 80 km/h for heavy vehicles on national highways.
  • ⚠️Wear seatbelts and ensure all passengers are buckled up.
  • ⚠️Do not overtake on curves, bridges, or narrow sections.
  • ⚠️Keep a safe following distance, especially during monsoon season.
  • ⚠️Use headlights even during daytime on highways.
  • ⚠️Take breaks every 2 hours during long drives to avoid fatigue.
  • ⚠️In case of an emergency, call 112 (Unified Emergency Number) or 1033 (National Highway Helpline).

Frequently Asked Questions

Where does National Highway 166S start and end?
National Highway 166S starts from Dhargalim and ends at Mopa Airport.
Which states does National Highway 166S pass through?
National Highway 166S passes through Goa.
What are the major cities on National Highway 166S?
The major cities and towns along National Highway 166S include Dhargalim, Mopa Airport.
Is National Highway 166S a primary or secondary national highway?
National Highway 166S is a secondary/branch national highway that branches from NH 66.
What is the speed limit on National Highway 166S?
The speed limit on National Highway 166S is 100 km/h for cars and light motor vehicles, 80 km/h for buses and medium goods vehicles, and 60 km/h for heavy motor vehicles (trucks and lorries). These limits are set under the Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific sections.
What is the route of National Highway 166S? (Route Map)
National Highway 166S follows this route: NH66 near Dhargalim, Mopa Airport near Varconda — starting at Dhargalim and ending at Mopa Airport.

Planning a Road Trip on NH 166S?

Check out our road safety guides and highway speed limits.

Road Safety RulesHighway Speed LimitsRoad Trip Checklist

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