119.3 km (74.13 mi). Tokyo Bay Aqua-Line—part of Japan National Route 409 "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...

National Route 15 (国道15号, Kokudō Jūgo-gō) is a national highway connecting Tokyo and Yokohama in Japan. It is commonly referred to as Dai-Ichi Keihin...

National Route 1 (国道1号, Kokudō Ichi-gō) is a major highway on the island of Honshū in Japan. It connects Chūō, Tokyo in the Kantō region with the city...

National Route 7 (国道7号, Kokudō Nanagō) is a major north-south national highway on the Sea of Japan side of the island of Honshū, Japan. It traverses four...

National Route 465 (国道465号, Kokudō Yonhyaku roku-jūgogō) is a national highway located entirely within Chiba Prefecture, Japan. It connects the cities...

National Route 238 (国道238号, Kokudō Nihyaku sanjūhachi-gō) is the northernmost of the national highways of Japan. It connects the cities of Abashiri and...

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...

Archived from the original on 2014-10-06. Retrieved 30 September 2014. "国道109新线饮马鞍隧道开挖进尺突破4000米！". j.021east.com. Retrieved 2022-05-22. "景文3标项目叶麻尖1#隧道顺利进洞施工"...

Chiba and Takanezawa, Tochigi, with a total length of 116.9 km (72.64 mi). "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]...

(36.66 mi). National Route 296 was first constructed on April 1, 1970 "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]...