Hawaii Route 31
# Hawaii Route 31

Hawaii Route 31, also known as the Pi'ilani Highway, is a 38-mile road on the island of Maui in Maui County, Hawaii, United States.

## Description

The route begins in at an intersection with Hawaii Routes 310 and 311 in the East Maui town of Kihei. The highway formerly ran parallel to the coast all the way to the southern terminus of the Hana Highway (Route 360), until developments in Wailea and Makena blocked access. The Kihei section of the highway now terminates in Wailea, and the much longer Kaupo section, which is mostly a one-lane, winding road, is county-maintained as County Road 31, connects Route 37 near Kula to the Route 360 south of Hana (at the western border of Haleakala National Park).

## Major intersections

The entire route is in Maui County.

| Location | mi | km | Destinations | Notes |
| - | - | - | - | - |
| Kihei | 0.0 | 0.0 | Route 310 north (Kihei Road) / Route 311 north – Kahului, Airport, Lahaina | Southern termini of Routes 310 and 311 |
| Wailea | 7.2 | 11.6 | Wailea Ike Drive west – Wailea, Makena | End state maintenance |
| Gap in route |||||
| ​ | 16.0 | 25.7 | Route 37 north (Kula Highway) | Southern terminus of Route 37; begin county maintenance |
| ​ | 25.3 | 40.7 | Begin one-lane roadway | Begin one-lane roadway |
| Kalepa Gulch | 38.4 | 61.8 | Kalepa Bridge | Kalepa Bridge |
| Haleakala National Park | 38.4 | 61.8 | Route 360 west (Hana Highway) | Continues east as Route 360 |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi |||||
