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National Route 410
National Route 410
国道410号
	National Route 410 highlighted in red
Route information
Length	110.4 km (68.6 mi)
Existed	1 April 1982–present
Major junctions
South end	National Route 127 / National Route 128 in Tateyama
	National Route 465; Ken-Ō Expressway; National Route 409; Tateyama Expressway; Tokyo Bay Aqua-Line;
North end	National Route 16 in Kisarazu
Location
Country	Japan
Highway system
	National highways of Japan; Expressways of Japan;

National Route 410 (国道410号, Kokudō Yonhyakujūgō) is a national highway located entirely within Chiba Prefecture, Japan. It connects the cities of Tateyama and Kisarazu, spanning the Bōsō Peninsula in a south–north routing. The highway has a total length of 110.4 kilometers (68.6 mi).

Route description

National Route 410 connects the cities of Tateyama and Kisarazu, spanning Chiba Prefecture's Bōsō Peninsula in a south–north routing. Its southern terminus lies at a junction with National Route 127 and National Route 128 in central Tateyama. It travels south from there towards the southern tip of the Bōsō Peninsula, Cape Nojima. Upon reaching the cape, the highway begins curving to the north heading through Minamibōsō and the former town of Chikura. It has another junction with National Route 128 in the former town of Maruyama, sharing a brief concurrency with the route before continuing north into the city of Kamogawa. The highway has a total length of 110.4 kilometers (68.6 mi).^[2]^[1]

History

In 1902, the Yomachisaku Daiichi Tunnel (四町作第一隧道, Yomachisaku Daiichi Zuidō) was completed using only hand tools along what would become National Route 410 in the city of Kimitsu. The tunnel is the second oldest tunnel that is designated as a part of a national highway in Japan.^[3]^[4]

National Route 410 was established by the Cabinet of Japan in 1982.^[5] Construction began on the Kururi–Makuta Bypass of the narrow sections of the highway including the Yomachisaku Daiichi Tunnel in 1989. The 10.7-kilometer-long (6.6 mi) bypass was scheduled to be completed by 2015,^[6] but as of 2021, the bypass has yet to be completed.^[2] On 23 December 2015, a 20-meter-long (66 ft) section of the Yomachisaku Daiichi Tunnel's shotcrete lining collapsed following a re-application of the supportive lining a month prior to the collapse. The tunnel lining was repaired by the following day.^[7]

Major intersections

The route lies entirely within Chiba Prefecture.

Location	km^[2]	mi	Destinations	Notes
Tateyama	0.0	0.0	National Route 127 north (Tateyama Bypass) – Chiba, Kisarazu National Route 128 (Sotobō–Kuroshio Line) – Tateyama Station, central Tateyama, Kamogawa, Minamibōsō	Southern terminus; highway continues north as National Route 127
	1.3	0.81	Chiba Prefecture Route 188 east – Chikura
	1.5	0.93	Chiba Prefecture Route 86 – Shirahama, central Tateyama
	2.3	1.4	National Route 410 north (Hōjō Bypass) – Central Tateyama, Shiroyama Park, Oki no Shima
	9.8	6.1	Chiba Prefecture Route 257 north (Bōsō Flower Line) – Sunozaki
	10.0	6.2	Chiba Prefecture Route 252 south – Tomisaki Fishing Port
Minamibōsō	15.9	9.9	Chiba Prefecture Route 86 north – Tateyama, Shirahama
	29.1	18.1	Chiba Prefecture Route 187 west – to Futtsu Tateyama Road, Tateyama, Chikura Station
	29.2	18.1	Chiba Prefecture Route 251 south – Chikura-Seaside
	30.3	18.8	Chiba Prefecture Route 241 west – Chikura Station
	32.8	20.4	Chiba Prefecture Route 297 north – Kamogawa, Rosemary Park
	35.5	22.1	National Route 128 north (Sotobō–Kuroshio Line) – Kamogawa	Southern end of National Route 128 concurrency
	36.1	22.4	National Route 128 south (Sotobō–Kuroshio Line) – to Futtsu Tateyama Road, Tateyama	Northern end of National Route 128 concurrency
	38.3	23.8	Chiba Prefecture Route 296 – to Futtsu Tateyama Road, Funakata, Wada
	41.1	25.5	Chiba Prefecture Route 258 west – Masuma
	46.1	28.6	Chiba Prefecture Route 89 west – Iwai	Southern end of Chiba Prefecture Route 89 concurrency
	47.8	29.7	Chiba Prefecture Route 89 east – Kamogawa	Northern end of Chiba Prefecture Route 89 concurrency
Kamogawa	53.2	33.1	Chiba Prefecture Route 34 (Nagasa Kaidō) – Hota, central Kamogawa
Kimitsu	65.4	40.6	National Route 465 west – Central Kimitsu, Kisarazu, Futtsu	Southern end of National Route 465 concurrency
	74.0	46.0	National Route 465 east / Chiba Prefecture Route 24 south (Kururi Kaidō)	Northern end of National Route 465 concurrency, southern end of Chiba Prefecture Route 24 concurrency
	81.8	50.8	Chiba Prefecture Route 32 east – Ōtaki Chiba Prefecture Route 93 west – Futtsu
	82.2	51.1	Chiba Prefecture Route 145 north – Kisarazu
	84.1	52.3	National Route 410 (Kururi–Makuta Bypass)	Large trucks are prohibited from going south on the Kururi–Makuta Bypass
	84.5	52.5	Chiba Prefecture Route 163 west – Kisarazu
	86.3	53.6	Chiba Prefecture Route 23 west – Kisarazu, Kazusa Akademia Park, Obitsu Station
	86.5	53.7	Chiba Prefecture Route 160 east – Itabu, Kururi Castle	Southern end of Chiba Prefecture Route 160 concurrency
	87.1	54.1	National Route 410 south (Kururi–Makuta Bypass) – Kisarazu, Kamogawa, Kururi Chiba Prefecture Route 160 ends	Northern end of Chiba Prefecture Route 160 concurrency
Kisarazu	90.0	55.9	Chiba Prefecture Route 166 – Shimogōri, Makuta
	90.6	56.3	Ken-Ō Expressway – to Tokyo Bay Aqua-Line, Tateyama Expressway, Chōshi, Mobara	Kisarazu-higashi Interchange (C4 exit 105)
	92.3	57.4	Chiba Prefecture Route 167 – to Tateyama Expressway, Kisarazu, Makuta	One-quadrant interchange
Sodegaura	93.7	58.2	National Route 409 east (Bōsō Ōdan-dōro) – Mobara, Ushiku Chiba Prefecture Route 24 north – to Tateyama Expressway, Chiba, Ichihara	Northern end of Chiba Prefecture Route 24 concurrency, southern end of National Route 409 concurrency
	95.8	59.5	Chiba Prefecture Route 165 east – Ichihara, Katsuura Chiba Prefecture Route 167 south – Kururi	Southern end of Chiba Prefecture Route 165 concurrency
	96.9	60.2	Chiba Prefecture Route 145 south – Kimitsu, Kazusa Akademia Park	Southern end of Chiba Prefecture Route 145 concurrency
	97.2	60.4	Chiba Prefecture Route 145 north – Nagaura	Northern end of Chiba Prefecture Route 145 concurrency
	97.4	60.5	Chiba Prefecture Route 165 west – Yokota Station	Northern end of Chiba Prefecture Route 165 concurrency
	99.2	61.6	Chiba Prefecture Route 33 south – Kimitsu, Kazusa Akademia Park
Kisarazu	99.6	61.9	Tateyama Expressway – to Tokyo Bay Aqua-Line, Ken-Ō Expressway, Tateyama, Chiba	Kisarazu-kita Interchange (E14 exit 15)
	99.2	61.6	Chiba Prefecture Route 33 south – Kimitsu, Kazusa Akademia Park
	102.7	63.8	National Route 410 north (Bōsō Ōdan-dōro) – Central Kisarazu	Partial interchange; northbound entrance, southbound exit
	103.2	64.1	Chiba Prefecture Route 146 – Central Kisarazu, Sodegaura
Sodegaura	105.0	65.2	Tokyo Bay Aqua-Line – to Tateyama Expressway, Keiyō Road, Chiba	Sodegaura Interchange (CA exit 3); northbound entrance, southbound exit
	105.2	65.4	National Route 16 – Tateyama, Kisarazu, Chiba, Ichihara National Route 409 west – to Tokyo Bay Aqua-Line, Kawasaki, Tokyo	National Route 410 reverses here
	105.4	65.5	Tokyo Bay Aqua-Line – to Tateyama Expressway, Keiyō Road, Chiba	Sodegaura Interchange (CA exit 3); northbound entrance, southbound exit
Kisarazu	107.2	66.6	Chiba Prefecture Route 146 – Central Kisarazu, Sodegaura
	108.0	67.1	National Route 409 east / National Route 410 south (Bōsō Ōdan-dōro) – Central Kisarazu	Partial interchange; northbound entrance, southbound exit, northern end of National Route 409 concurrency
	108.6	67.5	Chiba Prefecture Route 146 north – Sodegaura
	110.4	68.6	National Route 16 (Wangan-dōro) – to Tokyo Bay Aqua-Line, Tateyama, Chiba Chiba Prefecture Route 90 west (Bōsō Ōdan-dōro) – Kisarazu Port, central Kisarazu	Northern terminus; interchange; highway continues west as Chiba Prefecture Route 90
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access Route transition

References

^ ^a ^b "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 12 February 2020.
^ ^a ^b ^c "Route 410" (Map). Google Maps. Retrieved 19 April 2021.
^ "ビックリ道路大集合…！これが「酷道・怖道・険道」だ" [Several surprising roads. Cool, scary, and steep roads] (in Japanese). Kodansha. 4 February 2021. Retrieved 19 April 2021.
^ Nogishi, Yasuyuki (12 April 2021). "房総半島は素掘りトンネル王国!? 日本で2番目に古い国道トンネルを走ってみた". Bike News (in Japanese). MediaVague. Retrieved 19 April 2021.
^ 一般国道の路線を指定する政令 [Cabinet Order Designating General National Routes] (in Japanese). Cabinet of Japan. 1965. Retrieved 19 April 2021 – via Wikisource.
^ "国道410号久留里馬来田バイパス" [National Route 410 Kururi–Makuta Bypass] (PDF) (in Japanese). Chiba Prefecture. 2005. Retrieved 21 April 2021.
^ "23-ton collapse blocks Chiba tunnel; no one injured". The Japan Times. 24 December 2015. Retrieved 19 April 2021.