Jiansanjiang–Heixiazi Island Expressway
建三江－黑瞎子岛高速公路
Jianhei Expressway 建黑高速公路
Route information
Auxiliary route of G10
Length	217 km[1] (135 mi)
Existed	13 August 2017[2]–present
Major junctions
West end	G1011 in Jiansanjiang, Heilongjiang
East end	X109 in Fuyuan, Heilongjiang (to Hexiazi Island and future border crossing with Russia)
Location
Country	China
Highway system
National Trunk Highway System Primary Auxiliary National Highways Transport in China
← G1011 → G1013

The Jiansanjiang–Heixiazi Island Expressway (Chinese: 建三江－黑瞎子岛高速公路), commonly referred to as the Jianhei Expressway (Chinese: 建黑高速公路) and designated G1012, is an expressway linking the town of Jiansanjiang with Hexiazi Island, entirely in the prefectural-level city of Jiamusi in the Chinese province of Heilongjiang. It is 217 kilometres (135 mi) in length and opened on 13 August 2017. Prior to the national-level G designation, the highway was designated S14 by the province.

In its western end, the expressway connects with the G1115 Jixi–Jiansanjiang Expressway, which continues some 22 kilometres (14 mi) north to an interchange with the national-level G1011 Harbin–Tongjiang Expressway. This section could be considered as part of G1012, but is not signed as such.

In its eastern end, the expressway ends just before a bridge to Hexiazi Island, at a junction with County Road 109 in Fuyuan. The bridge will eventually connect a new trans-national road crossing over the Amur River to the Jewish Autonomous Oblast and nearby city of Khabarovsk, in Russia.^[3]

v t e   Expressways of the National Trunk Highway System of China
Primary	G1 G2 G3 G4 G5 G6 G7 G10 G11 G12 G15 G16 G18 G20 G22 G25 G30 G35 G36 G40 G42 G45 G50 G55 G56 G59 G60 G65 G69 G70 G72 G75 G76 G78 G80 G85 G91 G92 G93 G94 G95 G98 G99
Auxiliary	Spur G0111 G0112 G0211 G0212 G0311 G0411 G0412 G0413 G0511 G0512 G0513 G0611 G0612 G0613 G0615 G0616 G0711 G0712 G1011 G1012 G1013 G1015 G1016 G1017 G1111 G1112 G1113 G1115 G1116 G1117 G1118 G1119 G1131 G1211 G1212 G1213 G1215 G1216 G1511 G1512 G1513 G1514 G1515 G1516 G1517 G1518 G1519 G1531 G1532 G1533 G1534 G1535 G1536 G1611 G1612 G1811 G1812 G1813 G1815 G1816 G1817 G1818 G2011 G2012 G2211 G2511 G2512 G2513 G2515 G2516 G2517 G2518 G2519 G2531 G3011 G3012 G3013 G3014 G3015 G3016 G3017 G3018 G3019 G3031 G3032 G3033 G3035 G3036 G3511 G3512 G3611 G3612 G3613 G3615 G4011 G4012 G4013 G4015 G4211 G4212 G4213 G4215 G4216 G4217 G4218 G4219 G4231 G4511 G4512 G4513 G4515 G5011 G5012 G5013 G5015 G5016 G5511 G5512 G5513 G5515 G5516 G5517 G5518 G5611 G5612 G5613 G5615 G5616 G5617 G5618 G5911 G5912 G6011 G6012 G6511 G6512 G6517 G6911 G7011 G7012 G7013 G7211 G7212 G7511 G7512 G7611 G7612 G8011 G8012 G8013 G8511 G8512 G8513 G8515 G8516 G8517 G9111 G9211 G9411 G9511 G9811 G9812 G9813 Parallel G0121 G0122 G0321 G0322 G0323 G0421 G0422 G0423 G0424 G0425 G1221 G1521 G1522 G1523 G3021 G4221 G4222 G4223 G5021 G5621 G6021 G6022 G6023 G6025 G6521 G6522 G7021 G7221 G7521 G7522 G9221 Metropolitan Area Ring G9901 G9902 G9903 G9904 G9905 G9906 G9907 G9908 G9909 G9910 G9911 G9912 City ring G0401 G0601 G0602 G1001 G1101 G1501 G1502 G1503 G1504 G1505 G1506 G1507 G1508 G2001 G2002 G2003 G2004 G2201 G2501 G2502 G2503 G2504 G3001 G3002 G3003 G4001 G4201 G4202 G4501 G5001 G5601 G5901 G6001 G6002 G7201 G9801
Lists Primary Auxiliary China National Highways Note: italic indicates the routes that were available in 2013 network plan, but removed in 2022 network plan