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| Hanawi Stream | |
|---|---|
| Name | Hanawi Stream |
| Country | United States |
| State | Hawaii |
| Region | Maui |
Hanawi Stream is a perennial watercourse on the island of Maui in the State of Hawaii, originating in the highlands of Haleakalā and flowing through diverse montane and rainforest landscapes before contributing to lowland watersheds. The stream traverses portions of Hana and neighboring districts, intersecting historic ʻāina associated with Native Hawaiian communities, early Kingdom of Hawaii land divisions, and 19th-century plantation era infrastructure. Its corridor links ecological zones recognized by federal and local agencies, and features in studies by institutions such as the University of Hawaii at Mānoa and the United States Geological Survey.
Hanawi Stream rises on the flank of Haleakalā within mauka portions of East Maui, flowing through the Hana Forest Reserve and adjacent to parcels formerly managed by the Bishop Estate. The stream's course cuts steep gulches toward the windward coast near Hana Bay, downstream of tributaries draining Polipoli, Kīpahulu, and slopes above Keʻanae Peninsula. Surrounding landmarks include Piʻilani Highway, sections of the Hana Highway, and remnants of plantation-era camp structures tied to Alexander & Baldwin operations. Elevation gradients mirror nearby features such as Kīpahulu Valley, ʻOheʻo Gulch, and mauka ridgelines abutting Haleakalā National Park boundaries.
Flow regimes of Hanawi Stream are influenced by orographic rainfall from the Trade Winds, high-precipitation zones recorded at gauges operated by the USGS and datasets held by the National Oceanic and Atmospheric Administration. Seasonal variability aligns with patterns observed in East Maui Watershed studies and the Hawaiian Islands Humpback Whale National Marine Sanctuary catchment models for coastal discharge. Hydrologic connectivity includes interactions with groundwater systems monitored by the Hawaii Commission on Water Resource Management and historic ʻauwai irrigation channels noted in surveys by the Hawaiian Historical Society. Flood events correspond to storms cataloged by the National Weather Service and tropical cyclones like Hurricane Iniki in regional climatology comparisons.
Riparian corridors along Hanawi Stream host montane cloud forest assemblages comparable to those within Haleakalā National Park and conservation areas managed by the Trust for Public Land and The Nature Conservancy. Vegetation includes native species documented in floristic surveys by the Bishop Museum, such as ʻōhiʻa lehua recorded in inventories coordinated with the State of Hawaii Division of Forestry and Wildlife and federally listed plants monitored under the Endangered Species Act. Faunal communities comprise endemic birds akin to taxa reported by Hawaiʻi Audubon Society and Cornell Lab of Ornithology collaborators, stream-dwelling invertebrates studied by researchers at the University of Hawaii at Hilo, and aquatic snails referenced in literature from the Smithsonian Institution. Threats include invasive species described in management plans by the Department of Land and Natural Resources and pathogens investigated in studies by the US Fish and Wildlife Service.
The watershed encompasses sites associated with Native Hawaiian wahi kūpuna and land divisions (ahupuaʻa) documented in archives of the Bernice P. Bishop Museum and oral histories maintained by Native Hawaiian cultural practitioners and organizations such as Hoʻokipa Cultural Center. Early contact period references appear in journals of explorers and missionaries preserved at the Hawaii State Archives and collections of the American Antiquarian Society. Plantation-era modifications, labor histories involving workers from Japan, Philippines, and Portugal, and land transactions involving firms like Alexander & Baldwin shaped access and use, with further legal and land claims recorded in cases before the Hawaii Supreme Court and federal courts. Archaeological surveys by teams from the University of Hawaii and the Office of Hawaiian Affairs have identified terraces, loʻi kalo, and heiau remnants linked to pre-contact and post-contact habitation.
Public access follows routes adjacent to the Hana Highway and trails maintained by agencies including Hawaii County collaboratives and volunteer groups such as Maui Nui Marine Resource Council. Recreation opportunities mirror those in neighboring Kīpahulu and Haleakalā areas, attracting hikers, birdwatchers from Audubon Society chapters, and ecotourism operators registered with the Hawaii Tourism Authority. Safety advisories echo advisories issued by the National Weather Service and signage consistent with guidance from Department of Land and Natural Resources. Entry points connect with interpretive programs run by Maui Visitors Bureau partners and cultural tours coordinated with Hāna Cultural Center initiatives.
Conservation initiatives involve partnerships among the State of Hawaii Division of Forestry and Wildlife, The Nature Conservancy, Hawaiian Islands Land Trust, and federal entities including the National Park Service and US Fish and Wildlife Service. Management actions address invasive plant control, native species restoration funded through grants from the National Fish and Wildlife Foundation, watershed protection plans aligned with Hawaii State Water Code provisions, and research grants awarded by the National Science Foundation and USDA. Community-led stewardship programs are supported by the Office of Hawaiian Affairs and local hui that coordinate with regulatory frameworks administered by the Hawaii Commission on Water Resource Management and enforcement by the Department of Land and Natural Resources Division of Conservation and Resources Enforcement.
Category:Rivers of Maui County, Hawaii