Geotechnical Drilling, Umpqua River Bridge

This solicitation calls for a qualified contractor to provide geotechnical drilling services on the Umpqua River Bridge project (US‑101 crossing near Reedsport, OR). The work must be performed from a barge, involve drilling eight geotechnical holes to a depth of approximately 40 ft below the mudline, and include standard sampling (SPT and Shelby‑tube) and full documentation. The contractor must supply all equipment, crew, safety measures, environmental controls, and post‑drilling reporting, and must meet strict Oregon Water Resources Department (OWRD) and ODOT requirements. • Drill 8 geotechnical holes from a barge, reaching ~40 ft below mudline (≈65‑90 ft below water surface). • Perform SPT testing, HQ‑triple‑tube wireline coring, and optional Shelby‑tube sampling; provide OWRD‑required hole reports. • Supply all personnel, barge‑compatible drilling rig, water supply, safety equipment, spill‑control measures, and daily work logs; complete work between 13 Nov 2026 and 18 Dec 2026 (≈5 weeks).