
Japan National Route 129
National Route 129 is a national highway of Japan connecting Hiratsuka and Sagamihara in Kanagawa Prefecture in the Kantō region of Japan. It has a total length of 31.7 km (19.7 mi).
National Route 129 |
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国道129号 | ||||
Route information | ||||
Length | 31.7 km[1] (19.7 mi) | |||
Existed | 1963–present | |||
Major junctions | ||||
South end | ![]() |
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North end | ![]() |
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Highway system | ||||
National highways of Japan Expressways of Japan
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. . . Japan National Route 129 . . .

It has junctions with National Route 16 in Sagamihara, National Routes 412 and 246 in Atsugi, Kanagawa, and National Routes 1 and 134 in Hiratsuka, Kanagawa. The route runs in a north to south direction and has junctions with some major expressways. These include, two interchanges with the Ken-Ō Expressway, Atsugi Interchange at the Tōmei Expressway and Odawara-Atsugi Road, and Atsugi-minami Interchange at the Shin-Tōmei Expressway.[2]
Route 129 was originally designated on 18 May 1953 from Yokohama to Chiba as a loop around Tokyo. This was redesignated (along with a section of Route 127) as Route 16 on 1 April 1963 and the current Route 129 was designated the same day.
The entire route is in Kanagawa Prefecture.
Location | km | mi | Destinations | Notes | |||
---|---|---|---|---|---|---|---|
Hiratsuka | 0.0 | 0.0 | ![]() |
Southern terminus | |||
0.6 | 0.37 | Kanagawa Prefecture Route 607 | |||||
1.7 | 1.1 | ![]() |
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4.3 | 2.7 | Kanagawa Prefecture Route 44 (Shonan New Way) east | |||||
6.7 | 4.2 | Kanagawa Prefecture Route 44 (Shonan New Way) | |||||
Atsugi | 9.9 | 6.2 | Kanagawa Prefecture Route 22 | ||||
10.1 | 6.3 | ![]() |
E1A exit 2 (Atsugi-minami Interchange) | ||||
10.9 | 6.8 | Kanagawa Prefecture Route 601 north | |||||
11.1 | 6.9 | Kanagawa Prefecture Route 604 | |||||
11.5 | 7.1 | ![]() ![]() |
E1 Exit 5 (Atsugi Interchange), no exit number assigned to E85; no access to westbound E85 | ||||
12.5 | 7.8 | Kanagawa Prefecture Route 63 south | |||||
13.3 | 8.3 | ![]() |
National Route 246 merges into Route 129; southern end of National Route 246 concurrency | ||||
14.3 | 8.9 | Kanagawa Prefecture Route 603 | |||||
15.0 | 9.3 | Kanagawa Prefecture Route 60 | |||||
15.6 | 9.7 | Kanagawa Prefecture Route 43 south | |||||
17.3 | 10.7 | ![]() |
Northern end of National Route 246 concurrency | ||||
18.5 | 11.5 | ![]() |
C4 Exit 32 (Ken-Ō-Atsugi Interchange) | ||||
19.7 | 12.2 | Kanagawa Prefecture Route 42 | |||||
21.2 | 13.2 | Kanagawa Prefecture Route 65 west | |||||
23.4 | 14.5 | Kanagawa Prefecture Route 511 | |||||
Sagamihara | 24.3 | 15.1 | ![]() |
C4 Exit 33 (Sagamihara-Aikawa Interchange) | |||
25.4 | 15.8 | Kanagawa Prefecture Route 508 south | Southern end of Kanagawa Prefecture Route 508 concurrency | ||||
26.0 | 16.2 | Kanagawa Prefecture Route 508 north | Northern end of Kanagawa Prefecture Route 508 concurrency | ||||
28.0 | 17.4 | Kanagawa Prefecture Route 54 | |||||
31.5 | 19.6 | National Route 16 (Tokyo Kanjo Avenue) | Northern terminus | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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. . . Japan National Route 129 . . .
. . . Japan National Route 129 . . .
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