<![CDATA[Buk Putih Bridge is part of the Jajag–Pesanggrahan road network leading to southern Banyuwangi and is located in Bangorejo, Banyuwangi. Subsurface soil conditions are an important factor in supporting the bridge's foundation design. This study analyzes subsurface soil characteristics and stratification based on cone penetration test (CPT) data. The tests were conducted at two points (S.1 and S2), analyzing cone resistance (qc) and friction ratio (Rf). Soil characteristics were interpreted using the Robertson Soil Behavior Type (SBT) approach, which represents soil behavior based on CPT. The results show that the maximum qc value of 250 kg/cm² was recorded at a depth of 4.00 m at point S.1 and at a depth of 8.00 m at point S.2. Both points indicate a surface layer consisting of clay to clayey silt extending to a depth of approximately 3.00 m, characterized by low to moderate (qc) values and relatively high (Rf) values. Below this depth, increased (qc) and decreased (Rf) indicate a transition to granular soils. Differences in the depth of soil layers with qc ≥ 250 kg/cm² indicate horizontal variations in soil stratification. These findings provide basic information on subsurface soil conditions to inform the bridge's foundation and structural planning.]]>
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