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🛣️Secondary Highway

National Highway 122 (NH 122)

Muzaffarpur to Barauni — 101.0 km

NH 122 is a secondary/branch national highway connecting Muzaffarpur to Barauni, spanning 101.0 km through Bihar. It branches from NH 22.

101.0

Kilometres

1

State

4

Major Cities

NH 22

Parent Highway

NH 122 Route Map

(NH28) NH22 near Muzaffarpur, Dholi, Mushrigharari, NH31 near Barauni

States & Union Territories

NH 122 passes through the following 1 state:

Bihar

Major Cities & Towns Along NH 122

The highway passes through 4 major cities and towns:

●Muzaffarpur→●Dholi→●Mushrigharari→●Barauni
View on Google Maps

NH 122 Start and End Point

Start Point (Origin)

Muzaffarpur

Junction point from route description

End Point (Terminus)

Barauni

Junction point from route description

Highway Classification

Highway NumberNH 122
TypeSecondary/Branch Highway
Parent HighwayNH 22
Total Length101.0 km
Numbering SystemPost-2010 (New)
Managed ByNHAI / MoRTH

Speed Limit on NH 122

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 122

  • ⚠️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 122 pass through?
National Highway 122 passes through Bihar.
What are the major cities on National Highway 122?
The major cities and towns along National Highway 122 include Muzaffarpur, Dholi, Mushrigharari, Barauni.
What is the total length of National Highway 122?
The total length of National Highway 122 is 101.0 km.
Is National Highway 122 a primary or secondary national highway?
National Highway 122 is a secondary/branch national highway that branches from NH 22.
What is the speed limit on National Highway 122?
The speed limit on National Highway 122 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 122? (Route Map)
National Highway 122 follows this route: (NH28) NH22 near Muzaffarpur, Dholi, Mushrigharari, NH31 near Barauni.

Planning a Road Trip on NH 122?

Check out our road safety guides and highway speed limits.

Road Safety RulesHighway Speed LimitsRoad Trip Checklist

Related National Highways

NH 22

Sonbarsa → Lohardaga

416.0 km
East India

NH 122A

NH 122B

NH 322

58.0 km

NH 522

119.0 km

NH 722

74.0 km

Other National Highways in Bihar

NH 19

Agra → Dankuni

NH 20

Bakhtiyarpur → Panikoili

NH 22

Sonbarsa → Lohardaga

NH 27

Porbandar → Silchar

NH 31

Unnao → Gazole

NH 33

Arwal → Farakka

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