The is an expressway running in the northeastern part of the island of Shikoku

Shikoku

is the smallest and least populous of the four main islands of Japan, located south of Honshū and east of the island of Kyūshū. Its ancient names include Iyo-no-futana-shima , Iyo-shima , and Futana-shima...

 and entirely in the Kagawa Prefecture

Kagawa Prefecture

is a prefecture of Japan located on Shikoku island. The capital is Takamatsu.- History :Kagawa was formerly known as Sanuki Province.For a brief period between August 1876 and December 1888, Kagawa was made a part of Ehime Prefecture.-Battle of Yashima:...

. It passes through the municipalities of Higashikagawa

Higashikagawa, Kagawa

is a city located in Kagawa, Japan.As of 2003, the city has an estimated population of 36,988 and a population density of 241.45 persons per km². The total area is 153.19 km²....

, Sanuki

Sanuki, Kagawa

is a city located in Kagawa, Japan.As of March 31, 2011, the city has an estimated population of 53,865, with 20,237 households and the density of 339.01 persons per km²...

, Takamatsu

Takamatsu, Kagawa

is a city located in central Kagawa Prefecture on the island of Shikoku in Japan, and is the seat of the prefectural government. It is designated a core city by the Japanese Government. It is a port city located on the Seto Inland Sea, and is the closest port to Honshu from Shikoku island...

, Sakaide

Sakaide, Kagawa

is a city located in Kagawa, Japan.As of 2008, the city has an estimated population of 56,365 and the density of 610 persons per km². The total area is 92.46 km²....

, Marugame, Zentsuji

Zentsūji

is the name of famous Buddhist temple　and city in Japan. Below is an incomplete list:*Temple - Zentsū-ji. It is an origin of the following city name.*City - Zentsūji, Kagawa...

, Mitoyo

Mitoyo, Kagawa

is a city located in Kagawa, Japan.As of 2005, the city has an estimated population of 71,178 and a density of 320 persons per km². The total area is 222.66 km²....

, and Kan'onji

Kan'onji, Kagawa

is a city located in Kagawa, Japan.As of May 1, 2011, the city has an estimated population of 63,721, with households 23,480 and a density of 542.44 persons per km². The total area is 117.45 km²....

.

The superhighway runs through the northeastern part of the island in Kagawa Prefecture and connects in the eastern part of the prefecture to the Tokushima Expressway, in the western part of the prefecture to the Matsuyama Expressway

Matsuyama Expressway

The is an expressway running in the northwestern and western parts of the island of Shikoku and entirely in the Ehime Prefecture. It passes through the municipalities of Shikokuchūō, Niihama, Saijō, Tōon, Matsuyama, a tiny portion of northern Tobe, Iyo, Uchiko, Ōzu and Seiyo.The superhighway runs...

 and the Kochi Expressway.

History

• December 16, 1987 - Zentsuji Interchange to Kawanoe Junction opened, connecting the expressway with the Matsuyama Expressway
• January 30, 1992 - The Kochi Expressway connects at the Kawanoe Junction
• April 19, 1992 - Takamatsu West Interchange to Zentsuji Interchange, as well as the Sakaide Branch Line to Sakaide Interchange open, connecting the expressway with the Seto Ohashi Bridge
  Great Seto Bridge
  The , or Seto-Ohashi Bridge, is a series of double deck bridges connecting Okayama and Kagawa prefectures in Japan across a series of five small islands in the Seto Inland Sea. Built over the period 1978–88, it is one of the three routes of the Honshū-Shikoku Bridge Project connecting Honshū and...
  
   to Okayama
• March 26, 1998 - National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
   is connected at Takamatsu East and Tsuda East Interchange to Sanuki Miki Interchange opens
• March 29, 2001 - Itano
  Itano, Tokushima
  is a town located in Itano District, Tokushima, Japan.As of 2003, the town has an estimated population of 14,672 and a density of 405.53 persons per km². The total area is 36.18 km².-External links:*...
  
   Interchange to Tsuda East Interchange, along with Miki/Takamatsu Border to Takamatsu Chuo Interchange(currently closest to Takamatsu) open. At the same time, National Highway 11 connects to Sanuki Miki Interchange at Miki
  Miki, Kagawa
  is a town located in Kita District, Kagawa, Japan.As of 2003, the town has an estimated population of 29,015 and a density of 382.88 persons per km². The total area is 75.78 km².-External links:*...
  
  
• July 21, 2002 - Naruto
  Naruto, Tokushima
  is a city in Tokushima Prefecture, Japan.In the quinquennial census of 2010, the city had a population of 61,522 . With a total area of the population density is 454 persons per km².The city was founded on March 15, 1947....
  
   Interchage to Itano Interchange opens, connecting Tokushima Expressway to Kobe
  Kobe
  , pronounced , is the fifth-largest city in Japan and is the capital city of Hyōgo Prefecture on the southern side of the main island of Honshū, approximately west of Osaka...
  
  
• March 30, 2003 - Takamatsu Chuo Interchange to Takamatsu West Interchange opens, connecting all the expressways together. At the same time, Takamatsu East Interchange begins use.
• March 24, 2006 - Mitoyo-Tossaka Interchange begins use.

Divisions

Section	Vehicle	Speed Limit
Naruto Interchange to Shishi no Satomiki Bus Stop area	Tentative 2-wheel 4-wheel	70 km/h In the future there are plans such that everything that is 4-wheel except for Itano Interchange to Osaka Tunnel(80 km/h) and Tsuda East Interchange to Takamatsu East Interchange(80 km/h) will become 100 km/h
Shishi no Satomiki Bus Stop area to Takamatsu West Interchange	4-wheel	80 km/h
Takamatsu West Interchange to Kawanoe Junction	4-wheel	100 km/h
Sakaide Junction to Sakaide Interchange（Branch）	4-wheel	80 km/h

East of Takamatsu

• 11 Tsuda East Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
  
• SA Tsuda's Matsubara Service Area
• 12 Tsuda Samukawa Interchage with Route 37(Miki/Tsuda)
• 13 Shido Interchage with Route 141(Ishida East Shido)
• BS Shido Bus Stop
• 14 Sanuki Miki Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
   and Route 38(Miki/Mure) *Towards Naruto Only
• BS Shishi no Satomiki Bus Stop

Takamatsu(Miki Town, Takamatsu Border to Kawanoe Junction)

• 15 Takamatsu East Interchage with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
   *Towards Kawanoe Only
• 16 Takamatsu Center Interchange with Route 43(Nakatoku/Mitani)
• 17 Takamatsu Danji Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
   *Towards Naruto Only
• 1 Takamatsu West Interchange with Route 12(Miki/Kokubunji) *Towards Kawanoe Only
• PA Fuuchuuko Parking Area
• 2 Sakaide Junction with Seto Chuo Expressway and Sakaide Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
  
• BS Marugame Bus Stop
• 3 Zentsuji Interchange with Route 319 / Zentsuji Bus Stop
• 3-1 Mitoyo Tossaka Interchange with Route 220(Omi/Yoshizu/Nio) *Towards Takamatsu Only
• PA Takase Parking Area
• 4 Sanuki Mitoyo Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
  
• BS Kanonji Bus Stop
• 5 Onohara Interchange with National Highway 11
  Route 11 (Japan)
  National Route 11 is a Japanese highway on the island of Shikoku. The most important artery in Shikoku, it originates at the intersection with Routes 28, 55 and 195 in the prefectural capital of Tokushima and terminates at the intersection with Routes 33, 56, 317, 379, 440 and 494 in Matsuyama...
  
  
• SA Toyohama Service Area
• 6 Kawanoe Junction with Matsuyama Expressway
  Matsuyama Expressway
  The is an expressway running in the northwestern and western parts of the island of Shikoku and entirely in the Ehime Prefecture. It passes through the municipalities of Shikokuchūō, Niihama, Saijō, Tōon, Matsuyama, a tiny portion of northern Tobe, Iyo, Uchiko, Ōzu and Seiyo.The superhighway runs...
  
   and Kochi Expressway

Scenery, Information, and Trivia

• From Naruto Interchange until Shishi no Satomiki Bus Stop area is often very congested.
• When entering from Naruto, you pass through the Daidai Kofun Tunnel. When digging this tunnel, they found a "Kofun"(ancient tomb), causing it to have to be modified.
• As you go through the mountains from Itano, after you pass through the longest Osaka Tunnel, you enter Kagawa Prefecture. As you enter Kagawa Prefecture, you become able to see the Inland Sea.
• From Sakaide Junction until Toyohama Service Area is rather flat. After Toyohama, it becomes mountainous again. Once you pass through the mountainous region tunnels, you enter Ehime and Kawanoe Junction.