Japan National Route 42

For the Route 42 duplex with Route 1 from the Okurado Ent intersection to Shinohara intersection, signage indicates the route only as the higher priority Route 1. The Kiho and Matsusaka Taki Bypasses are as yet incomplete. The Ise-Wan Ferry serves as the Marine National Highway (Kaijokokudo) portion of the route.

Length
	404.4km (Wakayama and Mie prefectures) + 19.6km (Ise-wan Ferry[Toba-Irago]) + 65.2km (Aichi and Shizuoka prefectures)
Route type
	General National Highway Marine National Highway (ferry portion)
Western terminus
	Wakayama-shi, route 138/Route 24 (26)/route 16 (Kenchomae intersection)
Eastern terminus
	Hamamatsu-shi, Route 257(152)/Route 1(150) (Shinohara intersection)
Municipalities traversed (W to E)
	Wakayama Prefecture: Wakayama-shi Kainan-shi Arida-shi Kibi-cho Yuasa-cho Hirogawa-cho Yura-cho Hidaka-cho Gobo-shi Inami-cho Minabe-cho Tanabe-shi Kamitonda-cho Shirahama-cho Hikigawa-cho Susami-cho Kushimoto-cho Nachikatsuura-cho Shingu-shi Mie Prefecture: Udono-mura Kiho-cho Mihama-cho Kumano-shi Owase-shi Kihoku-cho Daiki-cho Odai-cho Seiwa-mura Taki-cho Matsusaka-shi Meiwa-cho Ise-shi Toba-shi Aichi Prefecture: Tahara-shi Toyohashi-shi Shizuoka Prefecture: Kosai-shi Arai-cho Hamamatsu-shi
Highway Stations
	Shiharakaigan Inobootanland Susami Kiho-cho Urigame Koen Park Shichirimihara Kumano Kinokuni Miyama Kii-Nagashima Mambo Oku Ise Kitsutsugitachi (sp?) Oku Ise Odai Irago Crystal Port
Road intersections
	Wakayama Prefecture: route 138/Route 24 (26)/route 16 route 13 route 151 route 135 route 154 route 135 route 9/route 162 Route 370 route 135 Hanawa Expressway (Kainan I.C [23]) route 166/route 167 route 165 route 165 Route 480/route 173 route 171 route 20 route 20 route 172 route 164 route 159 route 22 Hanawa Expressway (Kibi I.C [25]) route 179 route 23 route 178 route 178 route 177 Hanawa Expressway (Hirogawa I.C [28]) route 21 route 177 route 177 route 177 route 23 route 23 route 23 route 27 route 176 route 189 route 176 route 176 route 24 route 26 route 188 route 188 route 186 route 176 route 25 route 25 Route 425 route 28 route 204 route 202 route 197 Route 424 (8.6 km duplex) route 201 route 200 route 199 route 210 route 208/Route 424 (end duplex) route 208 route 29 route 207 route 216 route 31 route 33 Route 311 route 31 route 212 route 220 route 213 route 34 route 215 route 37/route 223 route 243 route 243 route 243 route 38 route 222 route 225 route 36 route 39 route 226 Route 371 route 41 route 41 route 38 route 227 route 234 route 45/route 239 route 235 route 235 route 240 route 236 route 46 route 46 route 43 route 237 route 233 route 231 Route 168 route 232 route 42 Mie Prefecture: route 35 route 141 Route 42 (Kiho Bypass) route 62 route 739 route 542 route 52 Route 311 (4.6 km duplex) route 34 route 204 Route 311 (end duplex) route 156 Route 309 route 737 route 737 route 70 Route 311 Route 425/route 778 route 155 route 760 route 540 route 603 route 734 route 581 route 516 Route 422/route 751 Route 260 route 758 route 538 route 68 route 33 route 537 route 731 route 38 route 536 Kisei Expressway (Omiya Odai I.C [1]) route 747 route 747 route 31 route 747 route 770 route 770 route 46 route 709 route 535 Route 368 Ise Expressway (Seiwataki I.C [39]) route 702 route 150 route 13 route 160 route 421 route 701 route 160 route 59 route 59 route 147 route 700 Route 166 route 756 route 60 route 37 route 24/route 509 route 699 route 59 route 756 route 699 route 580/Route 23 ( km duplex) route 699 route 509 route 705 route 705/Route 42 (Matsusaka Taki Bypass) route 59 route 706 route 707 route 60 route 510 route 713 route 714 route 511 route 748 route 748 route 201 Route 23 (end duplex)/route 102 route 576 route 102 route 102 Ise-Futami-Toba Line/Route 42 (Futami JCT) Ise-Futami-Toba Line/Route 42 (Futamiura Exit) route 37 Ise-shima Skyline Route 167 Matsusaka Taki Bypass (southbound) intersections: Route 23/Route 42 route 60 route 37 route 59 (likely, there are plans to connect to the existing Route 42 south from this point) Aichi Prefecture: Route 259 (420 m duplex) route 2 route 420 route 419 route 416 route 28 route 414 route 413 route 503 route 397 route 411 route 409 route 407 route 406 route 404 route 403 route 402 Route 1 (Shiomi Bypass) route 173 Route 1 (Shiomi Bypass) Route 1 (Hamana Bypass, Okurado I.C Ent., 11.9 km duplex) Route 301 route 323 route 49 route 49 route 65 Route 257/(Route 152)/Route 1(end duplex)/(Route 150)
Nearby Train Lines
	JR Kisei Line Kishu Railway Kintetsu Yamada Line JR Sangu Line Kintetsu Shima Line JR Tokaido Line
Notes
	For the Route 42 duplex with Route 1 from the Okurado Ent intersection to Shinohara intersection, signage indicates the route only as the higher priority Route 1. The Kiho and Matsusaka Taki Bypasses are as yet incomplete. The Ise-Wan Ferry serves as the Marine National Highway (Kaijokokudo) portion of the route.