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is a national highway of
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
connecting
Aoba-ku, Sendai is one of five Wards of Japan, wards of Sendai, the largest city in the Tōhoku region of Japan. Aoba-ku encompasses 302.278 km² and had a population of 296,551, with 147,622 households as of March 1, 2012. Infrastructure The Miyagi P ...
and
Aomori, Aomori is the capital city of Aomori Prefecture, in the Tōhoku region of Japan. , the city had an estimated population of 278,964 in 136,457 households, and a population density of 340 people per square kilometer spread over the city's total area of ...
. Alongside
Japan National Route 6 is a Japanese highway from Tokyo to Sendai that goes through the cities Mito, Iwaki and Sōma. It traces the old Mito Kaidō route from Tokyo to Mito,
, it is a main route along the Pacific coast of eastern Japan. It is paralleled closely by the incomplete
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
between Sendai and
Hachinohe is a city located in Aomori Prefecture, Japan. , the city had an estimated population of 221,459, and a population density of 725 persons per km2 in 96,092 households, making it Aomori Prefecture's second largest city by population. The city h ...
.


Route description

National Route 45 has a total length of . The northernmost of the highway between its northern terminus in central Aomori and
Japan National Route 102 is a national highway in the Japanese prefecture of Aomori. Route 102 stretches from National Route 7 in Hirosaki east to National Routes 4 and 45 in Towada. Route description The highway crosses the central part Aomori Prefecture, lin ...
in
Towada, Aomori is a Cities of Japan, city in Aomori Prefecture, Japan. , the city had an estimated population of 60,697, and a population density of 84 persons per km2 in 27,677 households. The total area of the city is . Geography Towada is in the foothills o ...
is a concurrency with
Japan National Route 4 is a major national highway in eastern Honshū, Japan. Measuring it is the longest highway in the country. When oversea routes are included, it is the second longest highway in Japan, with National Route 58 then measuring because of its mar ...
where Route 45 is not signed until it diverges from Route 4. From there it independently begins heading southeast towards the coastal cities of Hachinohe,
Kuji is a Japanese city in Iwate Prefecture. , the city had an estimated population of 34,418 in 15,675 households, and a population density of 55 persons per km2. The total area of the city is . Geography Kuji is in far northeastern Iwate Prefect ...
, Miyako,
Kamaishi is a city located on the Sanriku rias coast in Iwate Prefecture, Japan. , the city had an estimated population of 32,609, and a population density of 74 persons per km2, in 16,230 households. The total area of the city is Geography Kamaishi ...
,
Kesennuma is a city in Miyagi Prefecture, Japan. , the city had an estimated population of 59,803 and a population density of in 26,390 households. The total area of the city is . Large sections of the city were destroyed by the 2011 Tōhoku earthquake an ...
, and
Ishinomaki is a city located in Miyagi Prefecture, Japan. , the city has an estimated population of 138,538, and a population density of 250 persons per km2 in 61,919 households. The total area of the city is . Geography Ishinomaki is in northeastern Miya ...
on the way to its southern terminus in Sendai.


History

Route 45 was originally designated on 18 May 1953 as second-class routes 102 and 111 connecting Hirosaki to
Hachinohe is a city located in Aomori Prefecture, Japan. , the city had an estimated population of 221,459, and a population density of 725 persons per km2 in 96,092 households, making it Aomori Prefecture's second largest city by population. The city h ...
and Hachinohe to Sendai, respectively. On 1 April 1963, Route 102 was truncated to its current route with the section between Towada and Hachinohe incorporated into the newly formed first-class Route 45 along with the entirety of Route 111. Many sections of the highway along the
Sanriku Coast The is a coastal region on the Pacific Ocean, extending from southern Aomori Prefecture, through Iwate Prefecture and northern Miyagi Prefecture in northeastern Honshū, which is Japan's main island. The name comes from the historical region of S ...
were inundated, destroyed, or swept away by the
2011 Tōhoku earthquake and tsunami The occurred at 14:46 JST (05:46 UTC) on 11 March. The magnitude 9.0–9.1 (M) undersea megathrust earthquake had an epicenter in the Pacific Ocean, east of the Oshika Peninsula of the Tōhoku region, and lasted approximately six minutes ...
event.


List of major junctions

;
Aomori Prefecture is a prefecture of Japan in the Tōhoku region. The prefecture's capital, largest city, and namesake is the city of Aomori. Aomori is the northernmost prefecture on Japan's main island, Honshu, and is bordered by the Pacific Ocean to the east, ...
: in
Aomori is the capital city of Aomori Prefecture, in the Tōhoku region of Japan. , the city had an estimated population of 278,964 in 136,457 households, and a population density of 340 people per square kilometer spread over the city's total area of ...
(northern end of concurrency with ) : in Aomori : in Aomori : in
Noheji is a town located in Aomori Prefecture, Japan. , the town had an estimated population of 12,956, and a population density of 168 persons per km2 in 6,466 households. The total area of the town is . Geography Noheji occupies the southeastern coa ...
: (Noheji Interchange) in Noheji : in
Shichinohe is a town located in Aomori Prefecture, Japan. , the town had an estimated population of 15,286, and a population density of 45 persons per km2, in 6,797 households. The total area of the town is . Geography Shichinohe is in central Aomori Pref ...
: in
Towada is a city in Aomori Prefecture, Japan. , the city had an estimated population of 60,697, and a population density of 84 persons per km2 in 27,677 households. The total area of the city is . Geography Towada is in the foothills of the Hakkōda M ...
(southern end of concurrency with ) : in Towada :
Momoishi Road The is a 4-laned national expressway in the prefectures of Iwate and Aomori in the Tōhoku region of Japan. It is a spur of the Tōhoku Expressway, primarily serving the city of Hachinohe. Signed as E4A, it is owned and operated by East Nippo ...
/ Daini Michinoku Toll Road (Shimoda-Momoishi Interchange) in
Oirase is a town located in Aomori Prefecture, Japan. , the town had an estimated population of 25,149, and a population density of 350 persons per km², in 10,423 households. The total area of the town is . Geography Oirase is located on the eastern ...
: in Oirase :
Hachinohe Expressway The is a 4-laned national Expressways of Japan, expressway in the Prefectures of Japan, prefectures of Iwate Prefecture, Iwate and Aomori Prefecture, Aomori in the Tōhoku region of Japan. It is a spur of the Tōhoku Expressway, primarily serving ...
(Hachinohe-kita Interchange) in
Hachinohe is a city located in Aomori Prefecture, Japan. , the city had an estimated population of 221,459, and a population density of 725 persons per km2 in 96,092 households, making it Aomori Prefecture's second largest city by population. The city h ...
: in Hachinohe : in Hachinohe :
Hachinohe-Kuji Expressway The is an incompleted expressway in the southeastern part of Aomori Prefecture and the coastal area of Iwate Prefecture in northern Japan. It is owned and operated primarily by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) ...
(Hachinohe-minami Interchange) in Hachinohe :
Hachinohe-Kuji Expressway The is an incompleted expressway in the southeastern part of Aomori Prefecture and the coastal area of Iwate Prefecture in northern Japan. It is owned and operated primarily by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) ...
(Hashikami Interchange) in Hashikami ;
Iwate Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. It is the second-largest Japanese prefecture at , with a population of 1,210,534 (as of October 1, 2020). Iwate Prefecture borders Aomori Prefecture to the north, Akita Prefectur ...
:/
Hachinohe-Kuji Expressway The is an incompleted expressway in the southeastern part of Aomori Prefecture and the coastal area of Iwate Prefecture in northern Japan. It is owned and operated primarily by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) ...
(Kuji-kita Interchange) in
Kuji is a Japanese city in Iwate Prefecture. , the city had an estimated population of 34,418 in 15,675 households, and a population density of 55 persons per km2. The total area of the city is . Geography Kuji is in far northeastern Iwate Prefect ...
:/
Hachinohe-Kuji Expressway The is an incompleted expressway in the southeastern part of Aomori Prefecture and the coastal area of Iwate Prefecture in northern Japan. It is owned and operated primarily by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) ...
/ Sanriku-kita Jūkan Road (Kuji Interchange) in Kuji : in Kuji : Sanriku-kita Jūkan Road (Fudai-dai-16-Chiwari Interchange) in Fudai : Sanriku-kita Jūkan Road (Fudai-dai-11-Chiwari Interchange) in Fudai : Sanriku-kita Jūkan Road (Tanohata-Sugō Interchange) in Tanohata : Sanriku-kita Jūkan Road (Tanohata Interchange) in Tanohata : Sanriku-kita Jūkan Road (Tanohata-minami Interchange) in Tanohata : Sanriku-kita Jūkan Road (Unosudangai Interchange) in Tanohata : in Iwaizumi : Sanriku-kita Jūkan Road (Iwaizumi-minami Interchange) in Iwaizumi :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Tarō-Masakikaigan Interchange) in Miyako : in Miyako :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Miyako-minami Interchange) in Miyako :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Yamada-kita Interchange) in
Yamada Yamada (山田, ) is the 12th most common Japanese surname. Notable people with the surname include: *, Japanese model, actress and idol *, Japanese field hockey player *, Japanese illustrator and manga artist *, Japanese rugby union player *, Ja ...
:
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Yamada Interchange) in Yamada :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Yamada-minami Interchange) in Yamada :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kamaishi-kita Interchange) in
Kamaishi is a city located on the Sanriku rias coast in Iwate Prefecture, Japan. , the city had an estimated population of 32,609, and a population density of 74 persons per km2, in 16,230 households. The total area of the city is Geography Kamaishi ...
: in Kamaishi :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kamaishi-Tōni Interchange) in Kamaishi :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kamaishi-minami Interchange) in Kamaishi :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Yoshihama Interchange) in Ōfunato :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Sanriku Interchange) in Ōfunato :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Ōfunato-kita Interchange) in Ōfunato :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Ōfunato Interchange) in Ōfunato : in Ōfunato :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Ōfunato-Goishikaigan Interchange) in Ōfunato :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kayooka Interchange) in
Rikuzentakata is a city located in Iwate Prefecture, Japan. In the census of 2010, the city had a population of 23,302 (2005: 24,709), and a population density of 100 persons per km². The 2011 Tōhoku earthquake and tsunami caused extensive damage to the c ...
: in Rikuzentakata :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Rikuzentakata-Taosabe Interchange) in Rikuzentakata ;
Miyagi Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. Miyagi Prefecture has a population of 2,305,596 (1 June 2019) and has a geographic area of . Miyagi Prefecture borders Iwate Prefecture to the north, Akita Prefecture to the nort ...
:
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Karakuwa-Goharagi Interchange) in
Kesennuma is a city in Miyagi Prefecture, Japan. , the city had an estimated population of 59,803 and a population density of in 26,390 households. The total area of the city is . Large sections of the city were destroyed by the 2011 Tōhoku earthquake an ...
:
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Karakuwa-minami Interchange) in Kesennuma : in Kesennuma :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kesennuma-chūō Interchange) in Kesennuma :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Ōya-Kaigan Interchange) in Kesennuma : in Kesennuma :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Motoyoshitsuya Interchange) in Kesennuma :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Koizumi-Kaigan Interchange) in Kesennuma :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Utatsu-kita Interchange) in
Minamisanriku is a town in Miyagi Prefecture, Japan. , it had an estimated population of 12,516, and a population density of 77 persons per km² in 4504 households. The total area of the town is . It is a resort town on a coastline of wooded islands and moun ...
:
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Utatsu Interchange) in Minamisanriku :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Minamisanriku-Kaigan Interchange) in Minamisanriku : in Minamisanriku : in Tome :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Kahoku Interchange) in
Ishinomaki is a city located in Miyagi Prefecture, Japan. , the city has an estimated population of 138,538, and a population density of 250 persons per km2 in 61,919 households. The total area of the city is . Geography Ishinomaki is in northeastern Miya ...
: in Ishinomaki : in Ishinomaki : in Ishinomaki :
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
(Naruse-Okumatsushima Interchange) in
Higashimatsushima is a city located in Miyagi Prefecture, Japan. , the city had an estimated population of 39,580 in 16102 households, and a population density of 390 persons per km2. The total area of the city is . Geography Higashi-Matsushima (lit. "East Mats ...
: in
Matsushima is a group of islands in Miyagi Prefecture, Japan. There are some 260 tiny islands (''shima'') covered in pines (''matsu'') – hence the name – and it is considered to be one of the Three Views of Japan. Nearby cultural properties ...
:
Sanriku Expressway The is an incomplete expressway that exists in multiple segments in Miyagi Prefecture and Iwate Prefecture, Japan. The expressway connects Sendai, the capital and largest city in Miyagi Prefecture, to Miyako in Iwate Prefecture. It follows the c ...
/ Sendai-Tōbu Road (Sendaikō-kita Interchange) in
Miyagino-ku, Sendai is the northeastern ward of the city Sendai, in Miyagi Prefecture, Japan. , the ward had a population of 196,086 and a population density of 3370 persons per km2 in 91322 households. The total area of the ward was . Geography Miyagino-ku is lo ...
: in Miyagino-ku, Sendai : in
Aoba-ku, Sendai is one of five Wards of Japan, wards of Sendai, the largest city in the Tōhoku region of Japan. Aoba-ku encompasses 302.278 km² and had a population of 296,551, with 147,622 households as of March 1, 2012. Infrastructure The Miyagi P ...


Japan National Route 111

is a former second-class national highway of Japan that ran north to south from Sendai to Hachinohe. It existed from 1953 to 1963, when it was incorporated into the newly formed and longer first-class Route 45.


References


External links

{{National Routes of Japan, 45 045 Roads in Aomori Prefecture Roads in Iwate Prefecture Roads in Miyagi Prefecture