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|---|---|---|---|---|
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| Route information | ||||
| Maintained by NZ Transport Agency | ||||
| Length | 6.7 km (4.2 mi) | |||
| Major junctions | ||||
| Northeast end |  SH 1 (Waikato Expressway) at Tamahere | |||
 Hamilton Airport | ||||
| Southwest end |  SH 3 (Ohaupo Road) at Ōhaupō | |||
| Location | ||||
| Country | New Zealand | |||
| Highway system | ||||
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State Highway 21 (SH 21) is a short 6.7-kilometre (4.2 mi) stretch of highway in the North Island of New Zealand. It links State Highway 1, Waikato Expressway at Tamahere and State Highway 3 at Ōhaupō. Its main destination is Hamilton Airport and Mystery Creek, where the National Agricultural Fieldays are held.
SH 21 was gazetted as a brand new state highway designation in 1997.[1]
- ^ "Revoking Sections of State Highways Declaring New Sections of State Highway". New Zealand Gazette. 26 June 1997. Retrieved 5 July 2016.