Yonago Expressway

Yonago Expressway
米子自動車道
Route information
Length: 66.5 km (41.3 mi)
Existed: 1989 – present
Major junctions
From: Ochiai Junction in Maniwa, Okayama
Chūgoku Expressway
To: Yonago Interchange in Yonago, Tottori
San'in Expressway
Location
Major cities: Hōki
Highway system
National highways of Japan
Expressways of Japan

The Yonago Expressway (米子自動車道 Yonago Jidōsha-dō) is a national expressway in the Chūgoku region of Japan. It is owned and operated by West Nippon Expressway Company.

Overview

The expressway is officially referred to as the Chūgoku-Ōdan Expressway Okayama Yonago Route.

The route connects the city of Yonago with the Chūgoku Expressway in Okayama Prefecture. From the terminus at Yonago Interchange, there are plans to extend the route northward to the terminus of the city of Sakaiminato.

The first section of the expressway was opened to traffic in 1989 and the entire route was completed in 1992. The route was originally 2 lanes only, one in each direction. However expansion to two lanes in each direction has proceeded gradually over the years. Expansion of the sotuhern half (between Ochiai Junction and Hiruzen Interchange) was completed in 2011.

List of interchanges and features

No. Name Connections Dist. from
Origin		 Bus Stop Notes Location
(15) Ochiai JCT Chūgoku Expressway 0.0 Maniwa Okayama
1 Kuse IC National Route 181 3.2 ○
PA Ueno PA 7.2
TN Suribachiyama Tunnel northbound: 4,090 m (13,420 ft)
southbound: 4,100 m (13,500 ft)
2 Yuhara IC National Route 313
Hōjō Yubara Road (planned)		 15.6 ◆ Bus stop closed
TN Tamadayama Tunnel northbound: 1,655 m (5,430 ft)
southbound: 1,630 m (5,350 ft)
BS Futagawa BS 24.0 ◆ Bus stop closed
SA Hiruzen-kōgen SA 32.5
3 Hiruzen IC National Route 482 33.5
TN Mihirayama Tunnel Length - 1,529 m (5,016 ft)
Kōfu Tottori
TN Miyaichi Tunnel northbound: 340 m (1,120 ft)
southbound: 370 m (1,210 ft)
4 Kōfu IC National Route 181
National Route 183
National Route 482
Kōfu Miyoshi Road (planned)		 48.9 ○
TN Neubara Tunnel Length - 720 m (2,360 ft) Hōki
5 Mizoguchi IC Tottori Prefectural Route 45 57.2 ○
5-1 Daisen PA
Daisen-kōgen SIC		 Tottori Prefectural Route 326 61.7 ○
TB Yonago TB 66.1 Yonago
6
(16)		 Yonago IC/JCT San'in Expressway
National Route 431		 66.5 JCT:Northbound exit only
IC:Southbound entrance only
Through to Sakaiminato (planned)
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