If you have driven to Kaanapali, Napili, or Kapalua, you’ve probably had this same thought. Once you leave Central Maui behind, every drive depends on the same stretch of Honoapiilani Highway. Whether you’re heading to a resort, a beach, or back to the airport, there is little choice about how you get there.
That has long been part of driving West Maui, an inconvenience most visitors just accept. The 2023 Lahaina wildfire turned it into something far more serious. When fire destroyed the town, thousands of people had to escape a community served by essentially one road, and the evacuation exposed just how dependent West Maui remained on essentially one primary access route. What was once a traffic complaint is now a question of whether West Maui can safely get people out when it is needed. The long-planned extension of the Lahaina Bypass is taking its next formal step toward construction.
Why one road is viewed differently now.
For years, the Lahaina Bypass was discussed mainly as a way to ease the often severe congestion through Lahaina. The existing roadway already carries traffic from the Cut Mountain area north to Keawe Street, offering an alternative to part of Honoapiilani Highway.
The first time we drove it, it felt unfamiliar, running mauka of Lahaina and away from the coast road most visitors know. It took some getting used to. Now we drive it differently, more aware that on this side of the island, having a second way through is not merely a convenience.
Since the wildfire, the conversation has shifted beyond traffic. Dependence on a single primary route is now widely recognized as a safety and resilience issue for West Maui as it continues its recovery. Earlier this year, Maui County announced it would dedicate $100 million in federal wildfire disaster funding toward the bypass extension, a down payment on a phase that is expected to cost far more than that.
What HDOT is now proposing.
The Hawaii Department of Transportation has begun preliminary environmental studies for Lahaina Bypass Phase 1C, the next section of the roadway. The proposed extension would continue the bypass about 3 miles north from Keawe Street to Kakaʻalaneo Drive. According to HDOT, this first phase alone is expected to cost between $220 million and $250 million, well beyond the $100 million thus far committed.
HDOT says construction could begin by the end of 2028, with completion roughly two years later. But the project’s own website still lists the construction timeline as undetermined, with no final decisions on design or alignment. Treat those dates as estimates, not commitments.
Even when completed, the extension will not eliminate every transportation challenge facing West Maui. It should improve redundancy and connectivity, but it will not create a complete alternative route.
Nothing changes for your next Maui vacation.
This will not change how you reach West Maui on your next trip, and maybe not even the one after that. The project is still early in environmental review, with design and permitting ahead before construction can begin.
What changed is that a project West Maui has needed for decades, and needed far more urgently since 2023, finally cleared its next real hurdle. The road is still years out. But for the first time in a long time, it is actually moving.
How to share your views.
HDOT is inviting public comments as part of the environmental review through two upcoming meetings. An in-person informational meeting will be held Wednesday, July 8, from 6 p.m. to 8 p.m. at the Lahainaluna High School cafeteria. A virtual meeting will follow on Wednesday, July 15, from 6 p.m. to 8 p.m., with registration and project information available at the Lahaina Bypass Phase 1C project website.
As always, we’d like to hear from you as well. If you regularly visit or live in West Maui, do you think extending the bypass is one of the area’s highest transportation priorities, or should other improvements come first?
By Rob and Jeff, Beat of Hawaii.
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Meh. Now a road from Waikapu to Olowalu would be impressive.
This is not the ‘big deal’ that you are making it out to be. The basic problem of ‘escaping’ from the West Maui tourist zone is that, even with this addition to the Lahaina Bypass, there is still the problem of when the current south end of that Bypass merges with Hwy and a Two-Lane, twisty-windy road commences. So if an evacuation is needed, you have the coast road an the bypass merging like a funnel and everything grinds to a stop. As long as Hwy 30 remains a Two lane road, little to nothing is going to be accomplished.
have there ever been cost/benefit studies conducted on the feasibility of automobile ferries running between Lahaina and Kihei?
So, truthfully, real traffic relief and the safety offered by the West Maui bypass will be at least 5 years from now, likely 1-3 years longer than that. The environmental assessment should have been done years ago when the desirability of a bypass was recognized.
That’s a Good way of the money being used the way how it should be. LaCosta acquired move is a must. She can name the Hospital.
I needed to stop reading. After 2.23 million. So I’m sorry for not continuing on. I’m wishing good news.
I’m happy to hear that the Lahaina Bypass will be expanded to help traffic through the area. We used it many times during our Maui visits. However, another big issue is getting from south Lahaina over to Kahului. We have been there when the road has been totally closed for any number of reasons: waves over the road, car accidents, etc. And If there’s a medical emergency, appointment, catching a plane; a fire: you can forget making it over to central Maui quickly, if at all, in such situations. There’s only one other way to get from Lahaina to the Wailua & Kahului area and it’s very risky if not impossible. Only took the “road” once – never again. So while the next phase of the Bypass is much needed, there are other issues that need be addressed before anyone should feel comfortable with an evacuation from the West side.
I absolutely agree about that “other road” from Kahului to Lahaina. I also took it once and absolutely never again. Too many sections that are effectively one lane requiring one or the other vehicles going in opposite direction to backup a significant distance to allow the other to get through. In addition, there are many sections of that road that have either no or very poor guardrails between the one-lane, winding road and a steep cliff down to the shore. I’m glad I did this myself. And once you are on the road, there is very little opportunity to turn around and go back. If I had my wife in the car with me, she would literally have had a fit over this.
Thanks for bringing this up. Yes, the route south is just two lanes and I’ve seen it reduced to one lane at times. This part of Hwy around to Kahului and Kihei is the real problem and no simple answer had been presented, or even considered by the county. And, I keep thinking each time I drive the Bypass, ‘ was this route supposed to be Two or Four lanes???’ The way it was constructed, it’s hard to tell!
I didn’t think I’d see the first part of the bypass in my lifetime, and I’ve been pleasantly surprised that it worked. More bypass should only help, but it doesn’t solve the problem of what we do once we get to Olawalu, where it is back to one road. The merge at the transfer station is already pretty bad during the winter peak season, and in an evacuation situation it would be chaos. Not sure how to fix that. I think we need an emergency medical center on this side before we extend the bypass. If the road is closed, we can’t get to the hospital, unless we go through Kahakuloa, and you know what that is like.
Frank is right. Once you hit Olowalu there is still only one way out and the bypass and Honopi’ilani highway are only about a mile apart, so in another fire situation do we really feel like there are two ways to Olowalu? And we need a hospital over here. I feel like our representatives know how important it is to have one, but nothing happens.
Yes, without even the Kaiser clinic that was in Lahaina anymore, where does a person go in case of an emergency? The Bypass extension may make the folks in Kapalua happy, but even they would benefit more if at least a small medical facility were built in W. Maui.