The , signed as Route K1, is one of the tolled routes of the

Shuto Expressway The is a network of Toll road, tolled expressways in the Greater Tokyo Area of Japan. It is operated and maintained by the . Most routes are Grade separation, grade separated and have many sharp curves and multi-lane merges that require cauti ...

system serving the

Greater Tokyo Area The Greater Tokyo Area is the most populous metropolitan area in the world, consisting of the Kantō region of Japan (including Tokyo, Tokyo Metropolis and the prefectures of Chiba Prefecture, Chiba, Gunma Prefecture, Gunma, Ibaraki Prefecture, ...

and is one of seven of the routes in the system serving

Kanagawa Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Kanagawa Prefecture is the List of Japanese prefectures by population, second-most populous prefecture of Japan at 9,221,129 (1 April 2022) and third-dens ...

. The route is a long radial highway running southwest from the southern terminus of the

Haneda Route The , signed as Route 1, is one of the tolled routes of the Shuto Expressway system serving the Greater Tokyo Area. It is one two expressways signed as Route 1 in the system, the other expressway signed as Route 1 is the Ueno Route. The route is ...

in Ōta near

Haneda International Airport , also known as and sometimes abbreviated to ''Tokyo-Haneda'', is the busier of the two international airports serving the Greater Tokyo Area, the other one being Narita International Airport (NRT). It serves as the primary domestic base of J ...

Tokyo Tokyo, officially the Tokyo Metropolis, is the capital of Japan, capital and List of cities in Japan, most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is List of largest cities, one of the most ...

to the Kariba Route in

Naka-ku, Yokohama is one of the 18 Wards of Japan, wards of the city of Yokohama in Kanagawa Prefecture, Japan. In 2010, the ward had an estimated population of 146,563 and a population density of 7,080 persons per km². The total area was 20.86 km². Geogr ...

in Kanagawa Prefecture. Alongside the Haneda Route, it connects Tokyo's

Inner Circular Route The , signed as Route C1, is one of the routes of the Shuto Expressway system serving the central part of the Greater Tokyo Area. The route is a complete loop around the central Tokyo wards of Chiyoda, Chūō, and Minato, with a total length ...

in central Tokyo to

Yokohama is the List of cities in Japan, second-largest city in Japan by population as well as by area, and the country's most populous Municipalities of Japan, municipality. It is the capital and most populous city in Kanagawa Prefecture, with a popu ...

Route description

Route K1 begins at the Haneda interchange in Ōta as a continuation south for the

into Kanagawa Prefecture. From this northern terminus, it travels southwest out of Tokyo, crossing in to the eastern part of the city of Kawasaki in Kanagawa Prefecture. The largest junction along the Yokohane Route in Kawasaki is at Daishi Junction where the highway meets the Kawasaki Route at its western terminus. In Yokohama, the expressway intersects the Yokohama North Route, the Daikoku Route, National Route 15, the Mitsuzawa Route, and National Route 1. Route K1 meets its southern terminus at Ishikawachō Junction with the Kariba Route. The speed limit along almost the entire length of the Yokohane Route is set at 60 km/h. The only exception is at the southern terminus of the route between Yokohama-kōen and Ishikawachō Junction where the limit is lowered to 50 km/h.

History

The first section of the Yokohane Route was opened to traffic on 19 July 1968 between the interchanges at Asada and Higashikanagawa. Later that year, on 28 November, the expressway was extended north to its current northern terminus at Haneda. Next it was extended south to Kinkō Junction on 7 August 1972. It was extended further to the south, terminating at an interchange at Yokohama-kōen on 7 March 1978. The Yokohane Route was completed upon completion of its extension south to its southern terminus at Ishikawachō Junction on 2 February 1984. Work began in 2015 to replace the Daichi Bridge that carries that expressway over the

Tama River The is a major river in Yamanashi Prefecture, Yamanashi, Kanagawa Prefecture, Kanagawa and Tokyo Prefectures on Honshū, Japan. It is officially classified as a Class 1 river by the Government of Japan, Japanese government. It is long, an ...

after fatigue cracks were found throughout the old bridge. The replacement project is set to be completed in 2023.

Gallery

File:Haneda Exit1.jpg, The northern terminus of the route at Haneda File:Daishi bridge.jpg, The Daishi Bridge over the Tama River. The Yokohane Route is carried by the bridges on the left. While Tonomachi-dōri is carried by the bridges on the right File:Metropolitan Expressway Namamugi JCT1.JPG, Namamugi Junction File:Yokohanesen.JPG, The expressway near Koyasu File:Kinko JCT 1.jpg, Kinkō Junction File:Shuto expressway yokohama park.jpg, The expressway near its southern terminus

Junction list

References

External links