| Route 51 | ||||
|---|---|---|---|---|
| Kapule Highway | ||||
| Route information | ||||
| Maintained by HDOT | ||||
| Length: | 3.3 mi (5.3 km) | |||
| Major junctions | ||||
| North end: | Route 56 in Lihue | |||
| South end: | Route 58 in Lihue | |||
| Highway system | ||||
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Route 51 is a three mile (5 km) road that stretches from the junction Wapaa Road with Route 58 at the Nawiliwili Harbor in Lihue to Route 56 north of Lihue on The Garden Isle.
After the junction with Wapaa Road, Route 51 is signed with Rice Street for less than a mile. Route 51 then spilts off with Rice Street and becomes Kapule Highway where the final segment north of the airport was completed in 1988. The road intersects with Route 570 near the Lihue Airport. Heading north towards the eastern and northern towns of Kauai, Route 51 ends at the intersection with Route 56.
The entire route is in Lihue, Kauai County.
| Mile | Destinations | Notes | ||
|---|---|---|---|---|
| 0.0 | Route 58 west | Southern terminus of Route 58; eastern terminus of Route 51 | ||
| Route 570 east, Lihue Airport | Western terminus of Route 570 | |||
| 3.3 | Route 56 | Northern terminus of Route 51 | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi | ||||