National Route 497 is a national highway of Japan connecting between Hakata-ku, Fukuoka and Takeo, Saga in Japan, with total length has 63.5 km (39.5 mi).

A major part of the road is known as the Nishikyūshū Expressway (西九州自動車道, Nishi Kyūshū Jidōshadō), a toll road connecting Fukuoka and Takeo, Saga managed by West Nippon Expressway Company.

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