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(consult route list below for updated and detailed route information)



.State route 440 State route; County route 490 County route; Former state route 15Former county route 430 Former route; No route number Other unnumbered route
(Actual county route shields are usually identical to state shields; see the FAQs for how routes are classified in the listings below.
Also, in many browsers letting your mouse linger over a route number graphic will help you decipher it.)

Former route (no longer in numbered state or county system)



Routes are generally listed in numerical order, with some exceptions to group portions of the same road, or its former alignments, with different names and/or numbers. For lists ordered differently (alphabetical by name, or by former route number):

Name cross-index · Former route cross-index




Route Name Termini/misc road info Mileage
State route 50
(part)
Kaumualii
Highway
JN State route 56 Kuhio Highway at Former state route 50 Rice Street in Lihue, west to JN State route 50 Lio Road near Barking Sands Pacific Missile Range Facility; named for King Kaumualii, last king of Kauai before it joined the united Kingdom of Hawaii under Kamehameha the Great in 1810; State route 50, along with State route 56 and State route 560, were sometimes called "Kauai Belt Road" up to the 1980s 32.6
miles
State route 50
(part)
Lio Road JN State route 50 Kaumualii Highway, to JN State route 50 Kao Road 0.3
miles
State route 50
(part)
Kao Road JN State route 50 Lio Road, to north entrance to Barking Sands Pacific Missile Range Facility; this and preceding segment added to original route 50 sometime in 1960s 0.1
miles
Former
Former state route 50
Rice
Street
(part)
JN State route 50 Kaumualii Highway State route 56 Kuhio Highway in Lihue, east to JN State route 51 Rice Street and Kapule Highway; appears as numbered road in 1969 and 1973 maps, but subsequent history is unknown 1.0
miles
State route 51
(part)
Waapa
Road
(part)
JN State route 58 Nawiliwili Road near Nawiliwili Harbor, north to JN State route 51 Rice Street; Waapa Road continues south of JN State route 58 as unnumbered road to Nawiliwili Harbor; originally eastern end of route 50 0.1
miles
State route 51
(part)
Rice
Street
(part)
JN State route 51 Waapa Road in Lihue, to JN State route 51 Kapule Highway; originally part of route 50, along with the rest of Rice Street 0.7
miles
State route 51
(part)
Kapule
Highway
JN State route 51 Rice Street, north past Lihue Airport to JN State route 56 Kuhio Highway; final segment of route, north of airport, completed August 1988; originally route 510, though number may have changed to 51 by the time the road was built 2.6
miles
Former
Former state route 55
See listings below after State route 550 listings
State route 56 Kuhio
Highway
(part)
JN State route 50 Kaumualii Highway at Former state route 50 Rice Street in Lihue, north and west to JN State route 560 in Princeville, 0.16 miles west of town entrance at Ka Haku Road; at least northwesternmost 7.6 miles originally part of route 560; part of southern end of route, north of JN State route 51 Kapule Highway, once included a contraflow lane, as well as a three-lane crossing of the Wailua River with one northbound lane on a converted cane haul bridge; crossing widened to four-lane divided in 2011, with the former cane haul bridge converted to two northbound lanes, and the former contraflow lane on the parallel bridge becoming a full-time southbound lane; highway named for Prince Jonah Kuhio Kalanianaole, former territorial delegate to Congress after Hawaii's annexation by the United States 28.1
miles
Photos
"Temporary"
bypass

State route 56
Ala
Kianoika
Way
 
("Kapaa
bypass")
See State route 5600 listing below at end of table
Former
Former state route 56
(part)
Koolau
Road
JN State route 56 Kuhio Highway near Papaa Stream, northwest to JN State route 56 near Pilaa; bypassed by new alignment August 1965; paved but one-lane and/or winding in places; may once have been part of route 560 3.5
miles
Former
Former state route 56
(part)
Kolo
Road
JN State route 56 Kuhio Highway east of Kilauea village, west to JN State route 56 west of Kilauea; this segment, through Kilauea village, bypassed to the south of the village November 1973; may once have been part of route 560 1.0
miles
Former
Former state route 56
(part)
Kalihiwai
Road
JN State route 56 Kuhio Highway west of Kilauea village, west to JN State route 56 near Princeville Airport; bypassed by new State route 56 inland alignment December 1963; original bridge over Kalihiwai River was destroyed in 1957 tsunami, and was replaced by temporary bridge, but after the bypass was built, the temporary bridge was dismantled and never replaced; no remnants of any old route signage, at least east of Kalihiwai River; once part of route 560 2.1
miles
ROAD CLOSED TO THROUGH TRAFFIC, by permanent bridge closure in middle of this segment at Kalihiwai River.
State route 560 Kuhio
Highway
(part)
JN State route 56 Kuhio Highway in Princeville, west to end of road within parking lot at Haena State Park; originally part of route 56; has nine one-lane bridges; Hawaii DOT considered replacing old one-lane bridges with modern two-lane bridges, but it abandoned that effort for the key Hanalei River bridge in 1987, and in 1988 started restoration of its original one-lane bridge structure (followed by more extensive restoration completed in 2003) 10.0
miles
Photos

Bridge log
This part of the Kuhio Highway is listed on the National Register of Historic Places.
State route 58 Nawiliwili
Road
JN State route 51 Waapa Road near Nawiliwili Harbor, west to JN State route 50 Kaumualii Highway in Lihue; route number 58 previously assigned to what is now State route 580 Kuamoo Road in Wailua; originally designated as route 501 (route number was changed in late 1960s) 2.1
miles
County
County route 520
(part)
Maluhia
Road
JN State route 50 Kaumualii Highway near Knudsen Gap, through Koloa Tree Tunnel, south to Koloa town at JN County route 520No route number Koloa Road; (part of?) former route 52 3.3
miles
Photo
County
County route 520
(part)
Koloa
Road
(part)
JN County route 520 Maluhia Road No route number Koloa Road in Koloa, west to JN County route 520 Poipu Road County route 530 Koloa Road; (part of?) former route 52 0.1
miles
Photo
County
County route 520
(part)
Poipu
Road
(part)
JN County route 520County route 530 Koloa Road, south to Poipu at JN County route 520 Lawai Road No route number Poipu Road; may have been part of former route 52, or former route 53, though Hawaii DOT planning documents from the 1960s suggest it was never part of either route 1.6
miles
County
County route 520
(part)
Lawai
Road
(part)
JN County route 520 Poipu Road in Poipu, south to JN County route 520 Hoonani Road No route number Lawai Road; may have been part of former route 52, or former route 53, though Hawaii DOT planning documents from the 1960s suggest it was never part of either route 0.1
miles
County
County route 520
(part)
Hoonani
Road
(part)
JN County route 520No route number Lawai Road, south to JN No route number Hoonani Road at Koloa Landing (end of numbered route indicated by faded terminal milepost 5.08); may have been part of former route 52, or former route 53, though Hawaii DOT planning documents from the 1960s suggest it was never part of either route 0.2
miles
No route number Ala Kinoiki
 
(Poipu-
Koloa
Bypass
Road)
JN County route 520 Maluhia Road north of Koloa, east of Koloa then south to JN No route number Poipu Road and Pe'e Road in Poipu Beach; new eastern bypass of congested Koloa town center for traffic to or from Poipu Beach; recently opened (probably sometime in 2003 or 2004) 2.9
miles
County
County route 530
Koloa
Road
(part)
JN State route 50 Kaumualii Highway at Lawai, to JN County route 520 Koloa Road and Poipu Road; (part of?) former route 53 3.4
miles
State route 540 Halewili
Road
JN State route 50 Kaumualii Highway at Kalaheo, west to JN State route 50 Kaumualii Highway at Port Allen/Eleele 3.9
miles
State route 541 Waialo
Road
JN State route 50 Kaumualii Highway at Port Allen/Eleele, south "End State Highway" sign at Hanapepe Bay 0.4
miles
County
County route 543
Lele Road JN State route 50 Kaumualii Highway at Hanapepe, south to end of road at Port Allen Airport; appears on 1962 state highway map; official reports indicate it was removed from state highway system later in the 1960s, and not transferred into the numbered county route system; that notwithstanding, there are route shields at JN State route 50 indicating the route number, though there is no other route signage 0.8
miles
State route 550
(part)
Waimea
Canyon
Drive
JN State route 50 Kaumualii Highway in Waimea, north to JN State route 550County route 552 Kokee Road; winding and steep (posted for 25mph); some maps show this as part of former route 55, though most indicate that route 55 started in Kekaha rather than Waimea 6.8
miles
State route 550
(part)
Kokee
Road
(part)
JN State route 550 Waimea Canyon Drive County route 552 Kokee Road, along west side of Waimea Canyon ("Grand Canyon of the Pacific"), north to entrance to Kokee State Park; part of former route 55 7.3
miles
Former
Former state route 55
(part)
Kokee
Road
(part)
JN State route 550 Kokee Road at entrance to Kokee State Park, north to entrance to Kalalau Overlook parking lots; now under jurisdiction of state park system; Former state route 55 also included the Kokee Road part of State route 550, the roads that now form County route 552, and the unconnected road listed after the following note; route 550 milemarkers continue within park, to terminal milepost at Kalalau Overlook 5.1
miles
See the discussion in the FAQs of abandoned attempts to extend Kokee Road, to connect with the following northern segment of Former state route 55 and form a complete loop highway around Kauai.
Former
Former state route 55
(part)
Wainiha
(Powerhouse)
Road
JN State route 560 Kuhio Highway west of Wainiha, south to end of pavement; winding and narrow; appears as numbered route on official maps in 1960s, and others in early 1970s, but not on maps 1973 and later; see preceding note on abandoned plans to connect this road with the rest of former route 55 1.9
miles
County
County route 552
(part)
Alae
Road
JN State route 50 Kaumualii Highway in Kehaha, north to JN County route 552 Kokee Road; originally part of route 550, and before then part of former route 55 0.3
miles
County
County route 552
(part)
Kokee
Road
(part)
JN County route 552 Alae Road in Kekaha, north to JN State route 550 Kokee Road and Waimea Canyon Drive; winding and steep; originally part of route 550, and before then part of former route 55 7.3
miles
State route 560 See State route 560 listing above after State route 56 and Former state route 56 listings
State route 570 Ahukini
Road
(part)
JN State route 56 Kuhio Highway in Lihue, east to JN No route number Ahukini Road State route 51 Kapule Highway at entrance to Lihue Airport; completed June 1965; former route 57 1.1
miles
No route number Ahukini
Road
(part)
JN State route 570 Ahukini Road State route 51 Kapule Highway at entrance to Lihue Airport, east to Ahukini Recreation Pier State Park northeast of the airport; road within jurisdiction of Hawaii DOT's Airports Division; some unofficial maps indicate that this road used to be part of state route 570, or former state route 57, but official maps indicate that those routes have always ended near airport entrance (either at its present terminus, or per 1963 U.S. Bureau of Public Roads document, about 0.4 miles further east) 1.8
miles
State route 580 Kuamoo
Road
(part?)
JN State route 56 Kuhio Highway at Wailua, west to ford crossing of stream south of Wailua Reservoir; road continues beyond ford as unpaved one-lane road; old terminal milepost 4.83 at agricultural research station suggests route used to end there; former route 58 6.7
miles
County
County route 581
(part)
Kukui
Street
JN State route 56 Kuhio Highway at Kapaa, west to JN County route 581 Olohena Road; some maps erroneously show route 581 running instead over Lehua Street, parallel to and one short block north of Kukui Street 0.1
miles
County
County route 581
(part)
Olohena
Road
(part)
JN County route 581 Kukui Street, west to JN County route 581 Kamalu Road 3.3
miles
County
County route 581
(part)
Kamalu Road JN County route 581 Olohena Road, south to JN State route 580 Kuamoo Road 1.6
miles
State route 583 Maalo Road JN State route 56 Kuhio Highway at Kapaia, to end of pavement past second parking apron at Wailua Falls; last half of road narrow and rough; part of road may be under private rather than state ownership 3.9
miles
According to Hawaii DOT, there were plans to extend State route 583 to State route 580 and then extend either State route 580 or State route 583 north to State route 56 between Kilauea and Princeville, to provide a shortcut between Lihue and Kauai's north shore. The planned extension would have been a non-Federal aid highway, not necessarily part of the state highway system. I have no details on the abandonment of these plans (apparently sometime in the 1980s), though difficult terrain and perhaps weather (the proposed route would have passed a few miles east of the Waialeale summit, the world's rainiest place) might have had something to do with it.
Former
Former state route 583
(unknown) JN State route 583 Maalo Road at mile 2.8, west to the Wailua River (south fork); apparently route 583 used to include this segment rather than turning northeast to Wailua Falls, at least up to 1973 (per state highway map; parallel 1978 map shows current Wailua Falls routing) ~2.0
miles
NOW PRIVATE ROAD, CLOSED TO PUBLIC.
State route 5600 Ala
Kianoika
Way
 
("Kapaa
bypass")
JN State route 56 north of Kapaa near the intersection with Hauaala Road, south through roundabout intersection at JN County route 581 west of downtown Kapaa, then south and east to JN State route 56 Kuhio Highway in Wailua across from Coconut Marketplace; as of 2005, not assigned a separate route number, but was milemarked as a branch of route 56; current route number signage limited to small "5600" number plates under milemarkers; most of bypass built in August 1996 by paving old cane haul roads, with remainder opened January 2007; originally limited mainly to daytime hours, with seasonal closures, but those restrictions have been removed; last I heard, Hawaii DOT was planning (but had not lined up funding for) some kind of permanent bypass, but don't hold your breath waiting for removal of the existing "temporary" bypass 3.4
miles
ONE-WAY SOUTHBOUND, north of JN County route 581.


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© Oscar Voss/C.C. Slater 1997-2007, 2010, 2014. Last updated April 2014. See update status list for the latest field check and review of Hawaii DOT records.

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