Iao Valley State Monument will remain closed to the public for at least three more months as crews continue restoration work following a massive flood at the park in September.
State parks officials on Monday briefed members of the media on the work being done in the valley. Crews are still shoring up more than 400 feet of stream bank using a substance called "shotcrete" -- concrete that is shot out of a hose.
Much of the bank was washed away during a 100-year flood that occurred last year.
"There's a mix, the color, we're trying to make it as natural as possible," said Larry Pachecho, the Maui district state parks superintendent. "And the concrete is mixed with a fiber glass mixture that helps it to lock into the face of the cliff."
The flood caused millions of dollars of damage to railings and pedestrian bridges and resulted in severe erosion along the stream channel.
"The reason the park is still closed is because of the type of work being done," said Pacheco. "It's a large steep cliff; further up in the park there are still some areas that are still unstable."
The state says it hopes to re-open the park sometime in June and is asking people not to trespass into closed construction areas.