THREE OAKS CONSTRUCTION, INC

Three Oaks Construction, Inc. specializes in heavy civil engineering construction with a focused expertise in bank stabilization, dredged material management, and granular fill placement for federal infrastructure projects. Their work centers on erosion control, shoreline reinforcement, and earthwork operations along waterways, particularly in sensitive environmental zones. Technical capabilities include hydraulic fill placement, slope grading, sediment control, and the construction of engineered earth structures to mitigate fluvial and coastal degradation. The contractor demonstrates consistent proficiency in executing complex earthmoving tasks under challenging hydrological conditions, often in remote or ecologically sensitive locations, requiring precise geotechnical execution and compliance with environmental regulations. The company maintains a strong, recurring relationship with the Department of Defense, delivering critical civil works projects on military installations and U.S. Army Corps of Engineers-managed sites. Recent assignments include bank stabilization along the Missouri River corridor and site improvements at dredged material management areas, indicating deep familiarity with DoD’s environmental restoration and infrastructure resilience priorities. Their work supports military readiness through the protection of critical land and water access points, aligning with federal defense and environmental stewardship mandates. Operating under NAICS 237990, Three Oaks Construction is positioned as a niche provider in other heavy and civil engineering construction, with no visible diversification into building or specialty trade contracting. Their market focus is singularly on large-scale earth and water infrastructure, serving defense and federal land management agencies requiring durable, engineered solutions for natural resource protection. As a small business structured as a 2L entity based in North Sioux City, South Dakota, the firm leverages regional proximity to major river systems and federal project sites. While it holds no formal government certifications, its consistent performance on complex, mission-critical projects establishes a reputation for reliability in geotechnical and hydraulic construction within the Upper Midwest federal contracting landscape.