Kanagawa/Yamanashi Prefectural Road 521 Sanogawa Uenohara Line and Tokyo Metropolitan Road 521 Uenohara Hachiōji Line are prefectural and metropolitan roads that run from Route 20 in Uenohara City, Yamanashi Prefecture, over Wada Pass (elevation 690 m), the border between Sagamihara City, Kanagawa Prefecture and Tokyo Metropolis, to Route 20 in Hachiōji City, Tōkyō.
It is also commonly known as "Jimba Kaidō Ave.".
Wada Pass, which is also the trailhead to Mt. Jimba, is a challenging road with a series of narrow sections and steep grades that make it impossible even for light vehicles to separate from each other.
Wada Pass is closed to traffic due to weather conditions, and is also closed to general vehicles from 09:00 to 11:00 on Sundays and holidays from April to November.
START ：Kanagawa/Yamanashi Prefectural Road 521 Sanogawa Uenohara Line, Tokyo Metropolitan Road 521 Uenohara Hachiōji Line, End (Oiwakechō intersection = Route 20 intersection) - Oiwakechō, Hachiōji City, Tōkyō
GOAL : Kanagawa/Yamanashi Prefectural Road 521 Sanogawa Uenohara Line, Tokyo Metropolitan Road 521 Uenohara Hachiōji Line, Start (Uenohara Industrial Area Ent. intersection = Route 20 intersection) - Uenohara, Uenohara City, Yamanashi Pref.
DATE ：Mid-July, 2023
DISTANCE : approx. 28 km (measured by Google Maps)
Route map: www.google.com/maps/d/u/0/emb...
List of roads listed on map: mesorian.com/national-highway
00:00:00 Intro
00:02:05 Kanagawa/Yamanashi Prefectural Road 521 Sanogawa Uenohara LineTokyo Metropolitan Road 521 Uenohara Hachiōji Line, End (Oiwakechō intersection = Route 20 intersection) - Oiwakechō, Hachiōji City, Tōkyō
00:03:17 Minase Bridge (Minamiasa River) - Hiyoshichō, Hachiōji City, Tōkyō
00:05:23 Mimura Bridge (Shiroyama River) / E20 CHŪŌ EXPWY - Yokokawamachi, Hachiōji City, Tōkyō
00:06:29 ←→ Tokyo Metropolitan Road 46 Hachiōi Akiruno Line, Takao Kaidō Ave. - Yotsuyamachi, Hachiōji City, Tōkyō
00:09:30 Hachiōji Nibunkata Post Office - Nibunkatamachi, Hachiōji City, Tōkyō
00:12:41 Ongata Post Office - Nishiterakatamachi, Hachiōji City, Tōkyō
00:13:16 Kawarajuku Bridge (Kitaasa River) - Shimo Ongatamachi, Hachiōji City, Tōkyō
00:13:32 ←→ Tokyo Metropolitan Road 61 Yamada Miyanomae Line, Miyama Dōri Ave. - Shimo Onhatamachi, Hachiōji City, Tōkyō
00:15:45 C4 KEN-Ō EXPWY - Shimo Ongatamachi, Hachiōji City, Tōkyō
00:18:50 Komakino Bridge (Kitaasa River) - Kami Ongatamachi, Hachiōji City, Tōkyō
00:19:42 Kuronumata Bridge (Kitaasa River) - Kami Ongatamachi, Hachiōji City, Tōkyō
00:23:44 Yūyake Koyake Fureai no Sato (Nature experience recreation facility with overnight accommodations) - Kamiokata-cho, Hachioji City, Tokyo
00:24:20 Kami Ongata Post Office - Kami Ongatamachi, Hachiōji City, Tōkyō
00:31:54 Closed to general vehicle traffic (April-November, Sundays and holidays, 9:00-11:00)
00:39:50 Border (Wada Pass, elevation 690 m) - Hachiōji City, Tōkyō → Midori Ward, Sagamihara City, Kanagawa Pref.
00:44:07 Kaede Bridge (Sawai River) - Sanogawa, Midori Ward, Sagamihara City, Kanagawa Pref.
00:50:19 Denma Bridge - Sanogawa, Midori Ward, Sagamihara City, Kanagawa Pref.
00:52:25 ← Yamanashi/Kanagawa Prefectural Road 522 Yuzurihara Fujino Line - Sanokawa, Midori Ward, Sagamihara City, Kanagawa Pref.
00:55:20 → Yamanashi/Kanagawa Prefectural Road 522 Yuzurihara Fujino Line - Sanokawa, Midori Ward, Sagamihara City, Kanagawa Pref.
00:57:27 Border : Sagamihara City, Kanagawa Pref. → Uenohara City, Yamanashi Pref.
00:58:37 Sakaeda corduroy Bridge - Uenohara, Uenohara City, Yamanashi Pref.
00:58:52 Yamashita corduroy Bridge - Uenohara, Uenohara City, Yamanashi Pref.
00:59:16 Kanagawa/Yamanashi Prefectural Road 521 Sanogawa Uenohara LineTokyo Metropolitan Road 521 Uenohara Hachiōji Line, Start (Uenohara Industrial Area Ent. intersection = Route 20 intersection) - Uenohara, Uenohara City, Yamanashi Pref.