State Highway 21 (New Zealand)

State Highway 21
Route information
Maintained by NZ Transport Agency
Length	6.7 km (4.2 mi)
Major junctions
Northeast end	SH 1 at Tamahere
Major intersections	Hamilton Airport Mystery Creek
Southwest end	SH 3 at Ohaupo
Location
Country	New Zealand
Highway system
New Zealand state highways Motorways and expressways List
← SH 20 → SH 22

State Highway 21 (SH 21) is a short 6.7 kilometre stretch of highway in the North Island of New Zealand. It links State Highway 1, Waikato Expressway at Tamahere and State Highway 3 at Ohaupo. 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.

Oddities

State Highway 21 is actually 120 km south of where the number is supposed to be; in reality, it should lie somewhere in South Auckland. This southern placement makes SH 21 the second-most southern SH 2x highway, after SH 28.

At the exit to Hamilton Airport, State Highway 21 shows Hamilton to be in both directions (i.e. left to Hamilton and Rotorua, right to Hamilton and Waitomo Caves), and is possibly the only place in the State Highway network in which this happens. The actual difference between turning left and turning right is only 800 metres.

Major intersections

Territorial authority	Location	km	Destinations	Notes
Waikato District	Tamahere	0	SH 1 south (Waikato Expressway)/Thermal Explorer Highway – Rotorua SH 1 north (Waikato Expressway)/Thermal Explorer Highway – Hamilton	SH 21 begins
		2	Waikato River
Waipa District
	Mystery Creek	5	Hamilton Airport
			Mystery Creek Road – Mystery Creek Events Centre
	Rukuhia	7	SH 3 south – Waitomo Caves, New Plymouth SH 3 north – Hamilton	SH 21 ends

See also

• List of New Zealand State Highways
• List of roads and highways, for notable or famous roads worldwide

External links

• New Zealand Transport Agency