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4.12 Test Excavation 167 (T-167) - Honolulu Rail Transit Project

4.12 Test Excavation 167 (T-167) - Honolulu Rail Transit Project

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Cultural Surveys Hawai‘i Job Code: KALIHI 23Kewalo Geographic ZoneT-171 Stratigraphic DescriptionStratum Depth Description(cmbs)Ia 0-12 AsphaltIb 12-17 Fill; 10 YR 3/2 (very dark grayish brown); very gravelly sandy loam;weak, fine, crumb structure; very friable, weak consistency; non-plastic;terrigenous origin; abrupt, smooth lower boundary; basalt base courseIc 15-22 Fill; 2.5 Y 5/2 (dark grayish brown); extremely gravelly sand;structureless, single-grain; moist, loose consistency; non-plastic; marineorigin; very abrupt, smooth lower boundary; crushed coral base courseId 19-32 Fill; 2.5 Y 3/2 (very dark grayish brown); extremely gravelly sandy loam;weak fine, crumb structure; slightly plastic; terrigenous origin; veryabrupt, smooth lower boundary; basalt gravel in loam matrixIe 30-65 Fill; 2.5 Y 7/2 (light gray); extremely gravelly sand; structureless, singlegrain;moist, loose consistency; non-plastic; marine origin; clear, smoothlower boundary; crushed coral hydraulic fillIf 65-82 Fill; 2.5 Y 7/1 (light gray); very fine sand; structureless, massive; moist,loose consistency; non-plastic; marine origin; very abrupt, smooth lowerboundary; hydraulic fillII 81-84 Natural; 2.5 Y 4/1 (dark gray); silty clay; structureless, massive; weak,fine, blocky structure; moist, firm consistency; very plastic; abrupt,smooth lower boundary; fine roots common; former A-horizon;marshland/wetland sediment/peat containing roots and organicsIII 83-130 Natural; 2.5 Y 6/1 (gray); loamy sand; weak, fine, crumb structure; wet,slightly sticky consistency; non-plastic; marine origin; lower boundarynot visible; fine roots common; overlying coral shelfHHCTCP City Center (Section 4) AIS Report, Vol. IV C 818TMK: [1] 1-2, 1-5, 1-7, 2-1, 2-3 (Various Plats and Parcels)

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