National Freeway 3A

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National freeway 3a
Taipei Connecting Line
Route information
Maintained by Taiwan Area National Freeway Bureau
Length	5.6 km (3.5 mi)
Location
Country	Taiwan
Highway system
Highway system in Taiwan
← Nat 3 → Nat 4

National freeway 3A (native:國道三號甲線;三甲) is a spur of national freeway 3 for connection of downtown Taipei City. It begins south of downtown Taipei City at the intersection of Xinhai Road and Fanglan Road, near National Taiwan University, and ends in Shenkeng, New Taipei City on municipal highway 106B. It's tolled as it is the spur of National freeway 3.

It has an at-grade intersection with traffic signals installed around Muzha Interchange for National Freeway No.3 mainline, located at 25°00′07″N 121°35′43″E / 25.00188°N 121.59523°E / 25.00188; 121.59523.