Provincial Highway 78
台78線
台西古坑線 (Taixi-Gukeng Expressway)
Route information
Maintained by Directorate General of Highways
Length	42.879 km[1] (26.644 mi)
Existed	6 February 2002–present
Major junctions
West end	Prov 61 in Taixi, Yunlin
Major intersections	Nat 1 in Dounan, Yunlin
East end	Nat 3 in Gukeng, Yunlin
Location
Country	Taiwan
Highway system
Highway system in Taiwan
← Prov 76 → Prov 82

Provincial Highway 78 (Chinese: 台78線) begins in Taixi, Yunlin, Taiwan, on Zhonghua Road (Provincial Highway No. 17) and ends in Gukeng, Yunlin on National Highway No. 3.

The total length is 42.879 km.

The entire route is within Yunlin County.

City	Location	km[1]	Mile	Exit	Name	Destinations	Notes
Yunlin County	Taixi	0	0.0	0	Taixi System	Prov 61 – Kouhu, Taixi
		1	0.62	1	Taixi	Prov 17 – Sihu, Taixi
	Dongshi	8.2	5.1	8	Dongshi	Cty 153 – Dongshi, Mailiao
	Yuanchang	15.1	9.4	15	Yuanchang	Prov 19 – Yuanchang, Baozhong
	Tuku	22	14	22	Tuku	Tuku
	Huwei	25.4	15.8	25	Huwei	Cty 145 – Huwei, Tuku
	Dounan	30.4	18.9	30	Yunlin System	Nat 1 – Dounan, Dalin
		32.6	20.3	32	Dounan	Prov 1 – Dounan, Dapi
	Gukeng	39.4	24.5	39	Gukeng	Prov 3 – Douliu, Gukeng
		42.879	26.644	43	Gukeng System	Nat 3 – Linnei, Meishan
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Incomplete access

• Douliu City

• National Highway No. 1 at Yunlin JCT. in Dapi, Yunlin
• National Highway No. 3 at Gukeng JCT. in Gukeng, Yunlin
• Provincial Highway No. 61 at Taixi IC. in Taixi, Yunlin

• Highway system in Taiwan

• Completed in December 2004.

• thb.gov.tw

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