Draft Supplemental AIS Report Kamehameha Highway Guideway

Cultural Surveys Hawai‘i Job Code: WAIMALU 2
Results of Fieldwork
modern and historic fill layers overlying natural sediments. Upper fill strata were associated with
either the development of Kamehameha Highway (E12, E13, and E14) or with paving and
parking lot construction (PRS1, PRS2, and PRS3). Natural sediments were observed between 1.0
to 1.85 mbs, extending to the base of excavation (Sroat et al. 2012).
The stratigraphy observed within the three test excavations for this supplemental AIS was
generally consistent with the stratigraphy documented for PRS1, PRS2, and PRS3. Excavation
for the supplemental AIS was confined to two lots (the mauka and makai portions of the
Pearlridge Station) on either side of Kamehameha Highway. All three excavations contained
between four and seven layers of modern and historic fill that extended to between 1.95 to 2.10
mbs. Upper fill layers were generally associated with modern paving or parking lot construction
and included asphalt, gravel base courses, and loam fills. Lower fill layers consisted of clay, and
silty and sandy loams. The fill layers overlie natural, alluvial sediments that occur between 1.5 to
2.0 mbs and extend to the base of excavation. Natural sediments consisted of silty clay, sandy
clay loam, silty clay loam, and clay loams.
Supplemental Archaeological Inventory Survey, HHCTCP Section 2, Pearlridge Station, Waimalu Ahupua‘a, ‘Ewa, O‘ahu 22
TMK: (1) 9-8-009:017 and (1) 9-8-010:002