The is an incomplete two-lane national expressway that crosses the island of Kyushu, namely in Kumamoto Prefecture and Miyazaki Prefecture. It is owned and operated primarily by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT), but has a short section maintained and tolled by the West Nippon Expressway Company at its western terminus at the Kyushu Expressway. The route is signed E77 under MLIT's "2016 Proposal for Realization of Expressway Numbering."
Interchanges IC - interchange, JCT - junction, SA - service area, PA - parking area, BS - bus stop, TN - tunnel, BR - bridge, TB - toll gate Bus stops labeled "○" are currently in use; those marked "◆" are closed. {|class="wikitable plainrowheaders" |- !scope="col"|No. !scope="col"|Name !scope="col"|Connections !scope="col"|Dist.fromOrigin !scope="col"|Busstop !scope="col"|Notes !scope="col" colspan="2"|Location |- !scope="row" style="background-color: #BFB;"|15-2 |Kashima JCT | Kyushu Expressway |style="text-align: right;"|0.0
|rowspan="9" style="width:1em;"|Kumamoto |Kashima |- !scope="row" style="background-color: #BFB;"|TB |Mashiki TB | |style="text-align: right;"|0.9
|Mashiki |- !scope="row" style="background-color: #BFB;"|1 |Oike-Takayama IC | (Tsuchiyama Bypass) |style="text-align: right;"|1.8
|rowspan="2"|Mifune |- !scope="row" style="background-color:#BFB;"|2 |Ueno-Yoshimuta IC |Pref. Route 221 (Tashiro Mifune Route) |style="text-align: right;"|
!scope="row" style="background-color:#BFB;"|3 |Yamato Nakashima-Nishi IC | |style="text-align: right;"|12.6
|rowspan="5"|Yamato |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Kita-Nakashima IC |style="background-color:#ffdead;"|Pref. Route 152 (Inanoo Kōsa Route) |style="background-color:#ffdead; text-align: right;"| |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Yabe IC |style="background-color:#ffdead;"| |style="background-color:#ffdead; text-align: right;"|23.0 |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned |- |colspan="6" style="text-align:center; background-color:#ffdead;"|18 km gap in the expressway, connection is made by |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Soyō IC |style="background-color:#ffdead;"| |style="background-color:#ffdead; text-align: right;"| |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Gokase-Nishi IC |style="background-color:#ffdead;"| |style="background-color:#ffdead; text-align: right;"| |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned |rowspan="14" style="width:1em;"|Miyazaki |rowspan="2"|Gokase |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Gokase-Higashi IC |style="background-color:#ffdead;"| (Gokase Takachiho Road) |style="background-color:#ffdead; text-align: right;"|0.0 |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned; northbound exit, southbound entrance |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Takachiho IC |style="background-color:#ffdead;"| (Gokase Takachiho Road) |style="background-color:#ffdead; text-align: right;"|9.2 |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned |rowspan="5"|Takachiho |- |colspan="6" style="text-align:center; background-color:#ffdead;"|Planned |- !scope="row" style="background-color:#ffdead;"|— |style="background-color:#ffdead;"|Makado Intersection |style="background-color:#ffdead;"| (Takachiho Hinokage Road)Pref. Route 7 (Ogata Takachiho Route) |style="background-color:#ffdead; text-align: right;"| |style="background-color:#ffdead;"| |style="background-color:#ffdead;"|Planned; beginning of concurrency with Takachiho Hinokage Road |- |colspan="6" style="text-align:center; background-color:#ffdead;"|0.6 km gap in the expressway, connection is made by |- !scope="row" style="background-color:#BFB;"| |Unkai-bashi Intersection | |style="text-align: right;"|0.0 | |South end of concurrency with Takachiho Hinokage Road |- !scope="row" style="background-color:#BFB;"| |Hinokage-Fukasumi IC | |style="text-align: right;"|2.8
|rowspan="3"|Hinokage |- !scope="row" style="background-color:#BFB;"| |Hirasoko Intersection | (Takachiho Hinokage Road) |style="text-align: right;"|5.1
|colspan="6" style="text-align:center; background-color:#ffdead;"|16 km gap in the expressway, connection is made by |- !scope="row" style="background-color:#BFB;"| |Kurata Intersection | (Kitakata Nobeoka Road) |style="text-align: right;"|0.0
|rowspan="4"|Nobeoka |- !scope="row" style="background-color:#BFB;"| |Kitagata IC |Pref. Route 242 (Kitagata Interchange Route) |style="text-align: right;"|4.6
!scope="row" style="background-color:#BFB;"| |Maino IC | |style="text-align: right;"|11.0 | |Northbound exit, southbound entrance |- !scope="row" style="background-color:#BFB;"|22 |Nobeoka JCT/IC | Higashikyushu Expressway (Nobeoka Road)Nobeoka Interchange Road |style="text-align: right;"|13.1 |style="text-align: center;"|○
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