|Length||246.4 km (153.1 mi)|
|Existed||1 April 1963–present|
Route 49 was designated on 18 May 1953 as National Route 115, and this was redesignated as Route 49 when Route 115 was promoted to a Class 1 highway.
This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table.(November 2021)
- "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] (PDF) (in Japanese). Ministry of Land, Infrastructure, Transport and Tourism. Retrieved 19 February 2020.