Based on the quantities listed (e.g., < 5,000 CY earthwork, 2,886 LF curb & gutter, 1,961 SY concrete, 1,880 LF storm‑drain pipe, 1,419 TN asphalt, 219 LF retaining wall) and typical unit costs for Georgia civil work, a rough construction cost ranges from $800,000 (low end with minimal contingencies) to $1,200,000 (high end with premium materials and full bonding costs). The estimate assumes standard market rates for earthwork ($10‑$15/CF), concrete ($90‑$110/SY), asphalt ($70‑$80/TON), drainage pipe ($70‑$90/LF), curb & gutter ($25‑$35/LF), and retaining walls ($180‑$250/LF). Additional expenses for traffic‑signal/ATMS equipment, bonding, insurance, and overhead push the total toward the higher bound.