Japan National Route 45

National Route 45 (国道45号, Kokudō Shijūgogō) is a national highway of Japan connecting Aoba-ku, Sendai and Aomori, Aomori. Alongside Japan National Route 6, it is a main route along the Pacific coast of eastern Japan. It is paralleled closely by the incomplete Sanriku Expressway between Sendai and Hachinohe.

National Route 45 shield
National Route 45
国道45号
Japan National Route 45 highlighted in red
Route information
Length516.9 km[1] (321.2 mi)
Existed1 April 1963–present
Major junctions
North end National Route 7 / National Route 101 / National Route 280 in Aomori
Major intersections
South end National Route 48 / National Route 286 in Sendai
Location
CountryJapan
Highway system
← National Route 44→ National Route 46

Route description
National Route 45 crossing over the Shiino Bridge in Tanohata, Iwate

National Route 45 has a total length of 516.9 kilometers (321.2 mi). The northernmost 76.1 kilometers (47.3 mi) of the highway between its northern terminus in central Aomori and Japan National Route 102 in Towada, Aomori is a concurrency with Japan National Route 4 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, Miyako, Kamaishi, Kesennuma, and Ishinomaki on the way to its southern terminus in Sendai.

History
An aerial view of damage to Ōtsuchi, Iwate and Route 45 after the 9.0 magnitude earthquake and subsequent tsunami devastated the area

Route 45 was originally designated on 18 May 1953 as second-class routes 102 and 111 connecting Hirosaki to Hachinohe and Hachinohe to Sendai, respectively.[2] 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.[3]

Many sections of the highway along the Sanriku Coast were inundated, destroyed, or swept away by the 2011 Tōhoku earthquake and tsunami event.[4]

List of major junctions
Aomori Prefecture
National Route 7 (Aomori West Bypass) / National Route 101 / National Route 280 in Aomori (northern end of concurrency with National Route 4)
National Route 103 in Aomori
National Route 7 in Aomori
National Route 279 in Noheji
National Route 279 (Shimokita Expressway) (Noheji Interchange) in Noheji
National Route 394 in Shichinohe
National Route 4 in Towada (southern end of concurrency with National Route 4)
National Route 102 in Towada
E4A Momoishi Road/Daini Michinoku Toll Road (Shimoda-Momoishi Interchange) in Oirase
National Route 338 in Oirase
E4A Hachinohe Expressway (Hachinohe-kita Interchange) in Hachinohe
National Route 104 in Hachinohe
National Route 340 in Hachinohe
E45 Hachinohe-Kuji Expressway (Hachinohe-minami Interchange) in Hachinohe
E45 Hachinohe-Kuji Expressway (Hashikami Interchange) in Hashikami
Iwate Prefecture
National Route 395/E45 Hachinohe-Kuji Expressway (Kuji-kita Interchange) in Kuji
National Route 395/E45 Hachinohe-Kuji Expressway/Sanriku-kita Jūkan Road (Kuji Interchange) in Kuji
National Route 281 in Kuji
E45 Sanriku-kita Jūkan Road (Fudai-dai-16-Chiwari Interchange) in Fudai
E45 Sanriku-kita Jūkan Road (Fudai-dai-11-Chiwari Interchange) in Fudai
E45 Sanriku-kita Jūkan Road (Tanohata-Sugō Interchange) in Tanohata
E45 Sanriku-kita Jūkan Road (Tanohata Interchange) in Tanohata
E45 Sanriku-kita Jūkan Road (Tanohata-minami Interchange) in Tanohata
E45 Sanriku-kita Jūkan Road (Unosudangai Interchange) in Tanohata
National Route 455 in Iwaizumi
E45 Sanriku-kita Jūkan Road (Iwaizumi-minami Interchange) in Iwaizumi
E45 Sanriku Expressway (Tarō-Masakikaigan Interchange) in Miyako
National Route 106 in Miyako
E45 Sanriku Expressway (Miyako-minami Interchange) in Miyako
E45 Sanriku Expressway (Yamada-kita Interchange) in Yamada
E45 Sanriku Expressway (Yamada Interchange) in Yamada
E45 Sanriku Expressway (Yamada-minami Interchange) in Yamada
E45 Sanriku Expressway (Kamaishi-kita Interchange) in Kamaishi
National Route 106 in Kamaishi
E45 Sanriku Expressway (Kamaishi-Tōni Interchange) in Kamaishi
E45 Sanriku Expressway (Kamaishi-minami Interchange) in Kamaishi
E45 Sanriku Expressway (Yoshihama Interchange) in Ōfunato
E45 Sanriku Expressway (Sanriku Interchange) in Ōfunato
E45 Sanriku Expressway (Ōfunato-kita Interchange) in Ōfunato
E45 Sanriku Expressway (Ōfunato Interchange) in Ōfunato
National Route 107 in Ōfunato
E45 Sanriku Expressway (Ōfunato-Goishikaigan Interchange) in Ōfunato
E45 Sanriku Expressway (Kayooka Interchange) in Rikuzentakata
National Route 340 in Rikuzentakata
E45 Sanriku Expressway (Rikuzentakata-Taosabe Interchange) in Rikuzentakata
Miyagi Prefecture
E45 Sanriku Expressway (Karakuwa-Goharagi Interchange) in Kesennuma
E45 Sanriku Expressway (Karakuwa-minami Interchange) in Kesennuma
National Route 284 in Kesennuma
E45 Sanriku Expressway (Kesennuma-chūō Interchange) in Kesennuma
E45 Sanriku Expressway (Ōya-Kaigan Interchange) in Kesennuma
National Route 346 / National Route 456 in Kesennuma
E45 Sanriku Expressway (Motoyoshitsuya Interchange) in Kesennuma
E45 Sanriku Expressway (Koizumi-Kaigan Interchange) in Kesennuma
E45 Sanriku Expressway (Utatsu-kita Interchange) in Minamisanriku
E45 Sanriku Expressway (Utatsu Interchange) in Minamisanriku
E45 Sanriku Expressway (Minamisanriku-Kaigan Interchange) in Minamisanriku
National Route 398 in Minamisanriku
National Route 342 in Tome
E45 Sanriku Expressway (Kahoku Interchange) in Ishinomaki
National Route 398 (Ishinomaki Bypass) in Ishinomaki
National Route 108 in Ishinomaki
National Route 398 in Ishinomaki
E45 Sanriku Expressway (Naruse-Okumatsushima Interchange) in Higashimatsushima
National Route 346 in Matsushima
E6 Sanriku Expressway/Sendai-Tōbu Road (Sendaikō-kita Interchange) in Miyagino-ku, Sendai
National Route 4 (Sendai Bypass) / National Route 6 / National Route 47 in Miyagino-ku, Sendai
National Route 48 / National Route 286 in Aoba-ku, Sendai

Japan National Route 111

National Route 111 marker

National Route 111

LocationAoba-ku, Sendai, Hachinohe
Existed18 May 1953–1 April 1963[5]

National Route 111 (国道111号) 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
  1. "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 19 February 2020.
  2. "二級国道の路線を指定する政令 (昭和二十八年)". Wikisource (in Japanese). Retrieved 25 June 2019.
  3. "二級国道の路線を指定する政令 (1962年)". Wikisource (in Japanese). Retrieved 25 June 2019.
  4. The Ishinomaki Kahoku (2014). Surviving the 2011 Tsunami. Ishinomaki, Miyagi Prefecture, Japan: Junposha. p. 53. ISBN 978-4-8451-1351-4.
  5. "国道の番号の謎" (in Japanese). Retrieved 28 July 2019.
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