Private Vehicle Traffic Restrictions in Oirase Gorge
This page provides details on the purpose of the private vehicle traffic restrictions in Oirase Gorge, as well as the restriction period and affected sections.
Purpose and Background of the Private Vehicle Traffic Restrictions
Oirase Gorge is a shared natural treasure that belongs to all of us. Everyone has an equal right to enjoy the benefits it provides.
However, during the peak tourist season, large numbers of vehicles concentrate in the area, causing traffic congestion, environmental impacts, and other problems. National Route 102 along Oirase Gorge also serves as an important local road for daily life and industry, while the alternative route around the gorge is too narrow in places for large vehicles to pass each other safely.
To address these issues, the Aobunayama Bypass, which will provide a safe alternative route around Oirase Gorge, was launched as a development project in fiscal year 2013 and is currently being constructed.
The Oirase-Towada Utilization Council has conducted trial private vehicle traffic restrictions with the aim of conserving the natural environment and reducing congestion. Looking ahead to full-scale vehicle access restrictions, we will continue these annual trials while working toward expanding both the types of vehicles subject to restrictions and the restricted sections. We sincerely ask for your understanding and cooperation.
Service Ended Details of the Private Vehicle Traffic Restrictions
Restriction Period and Sections
Restriction Period | 2026 Sep. 7 (Mon) ▶ 11 (Fri) 10:00–16:00 |
| 2026 Sep. 12 (Sat) ▶ 13 (Sun) 9:00–16:00 |
Oirase Gorge section of National Route 102: Sobe Intersection to Nenokuchi Intersection (approx. 10 km)
Restricted Vehicles
Cars and motorcycles, including mopeds and electric kick scooters
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Rental cars are also subject to the restrictions.
Exempt Vehicles
Large vehicles, medium-sized vehicles, taxis, and certain other vehicles may pass through, but we ask that you refrain from entering the area whenever possible.
※ On Sunday, September 13, large vehicles, specified medium-sized vehicles, taxis, and certain other vehicles will also be subject to the restrictions.
▶ Vehicles used by persons with difficulty walking may pass through.
Nanamagari section of National Route 102: Nenokuchi Intersection to Aobunayama Intersection (approx. 6 km)
Restricted Vehicles
Large vehicles and specified medium-sized vehicles
Gross vehicle weight of 8 t or more, maximum payload of 5 t or more, or passenger capacity of 11 or more
Oirase Gorge Private Vehicle Traffic Restriction Map
The Nanamagari section used as the detour route contains a continuous series of sharp curves and steep gradients, making it difficult for large vehicles to pass each other. For this reason, large vehicles are generally permitted to travel through Oirase Gorge. We appreciate your understanding.
