SignalPeSignalPe
🛣️Secondary Highway

National Highway 166 (NH 166)

Ratnagiri to Kolhapur — 149.0 km

NH 166 is a secondary/branch national highway connecting Ratnagiri to Kolhapur, spanning 149.0 km through Maharashtra. It branches from NH 66.

149.0

Kilometres

1

State

4

Major Cities

NH 66

Parent Highway

NH 166 Route Map

(NH204) Ratnagiri, Tink, Pali, NH48 near Kolhapur

States & Union Territories

NH 166 passes through the following 1 state:

Maharashtra

Major Cities & Towns Along NH 166

The highway passes through 4 major cities and towns:

●Ratnagiri→●Tink→●Pali→●Kolhapur
View on Google Maps

NH 166 Start and End Point

Start Point (Origin)

Ratnagiri

Junction point from route description

End Point (Terminus)

Kolhapur

Junction point from route description

Highway Classification

Highway NumberNH 166
TypeSecondary/Branch Highway
Parent HighwayNH 66
Total Length149.0 km
Numbering SystemPost-2010 (New)
Managed ByNHAI / MoRTH

Speed Limit on NH 166

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 166

  • ⚠️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

Which states does National Highway 166 pass through?
National Highway 166 passes through Maharashtra.
What are the major cities on National Highway 166?
The major cities and towns along National Highway 166 include Ratnagiri, Tink, Pali, Kolhapur.
What is the total length of National Highway 166?
The total length of National Highway 166 is 149.0 km.
Is National Highway 166 a primary or secondary national highway?
National Highway 166 is a secondary/branch national highway that branches from NH 66.
What is the speed limit on National Highway 166?
The speed limit on National Highway 166 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 166? (Route Map)
National Highway 166 follows this route: (NH204) Ratnagiri, Tink, Pali, NH48 near Kolhapur.

Planning a Road Trip on NH 166?

Check out our road safety guides and highway speed limits.

Road Safety RulesHighway Speed LimitsRoad Trip Checklist

Related National Highways

NH 66

Navi Mumbai → Kanyakumari

1640.0 km
West India to South India

NH 166A

NH 166D

26.4 km

NH 166E

NH 166F

28.3 km

NH 166G

87.1 km

Other National Highways in Maharashtra

NH 44

Srinagar → Kanyakumari

NH 47

Bamanbore → Nagpur

NH 48

Delhi → Chennai

NH 52

Sangrur → Ankola

NH 53

Hajira → Paradip Port

NH 60

Pune → Dhule

Explore More on SignalPe

All National Highways

Browse all 826 national highways in India

Highway Speed Limits

Speed limits on Indian national highways

Overtaking Rules

Safe overtaking practices on highways

GPS Toll System

New GPS-based toll collection system

Road Safety Rules

Complete road safety guidelines for India

Lane Discipline

Lane rules for highways and expressways

← View All National Highways