USACE South Pacific Geotechnical Engineering 2016-2021

The U.S. Army Corps of Engineers Sacramento District established this Master IDIQ for architect-engineer geotechnical and design services supporting flood management structures including dams, levees, and channels across the South Pacific Division on September 29, 2016, with a shared ceiling of $29.5 million and a last order date of September 30, 2021. Ordering under this vehicle closed in September 2021 and is no longer active.

The vehicle delivered 30 task orders over five years, with peak activity in 2018 (9 orders) followed by 2020 (8 orders). Most recent awards were sparse—one order in 2021 and none thereafter. The vehicle obligated $39.7 million against a combined task-order potential value of $39.9 million, representing 99 percent utilization of the combined ceiling.

Scope is predominantly subsurface investigation, design, and construction-phase support for major flood-risk projects in California. Work includes exploratory drilling and trenching, materials testing, seismic analysis, stability and seepage analysis, borrow-site characterization, dam and levee safety remediation design, and routine inspections. Task orders cluster around American River Common Features (Natomas Basin and Sacramento weir projects), Folsom Dam Raise, landslide mitigation at Pine Flat, and emergency levee repairs under Public Law 84-99.

Kleinfelder Inc. and AECOM Technical Services captured approximately 98 percent of combined potential value with nine and eight orders respectively ($19.9 million and $18.2 million). Geo-Ex Subsurface Exploration, Taber Drilling, and Woodward Drilling held the remainder. The vehicle is a two-track structure with Small Business and Unrestricted tracks; 87 percent of orders carried no set-aside, with 13 percent designated Total Small Business.

Funding split between the Engineering District Sacramento (19 orders, $16.5 million) and Army Corps of Engineers broadly (11 orders, $23.4 million). Task-order values ranged from $23 thousand to $10.7 million, with significant multi-year efforts in geotechnical engineering during construction phases. Place of performance concentrated in central and northern California (Sacramento, Sutter, Glenn, Kern, Tulare, and Fresno counties), with several multi-year orders extending into 2024–2026.

The A-E services are for the investigation, studies and design leading to the construction of flood management structures including major dams, levees and channels and associated appurtenant structures and construction phase services. These services are generally for use within the Corps of Engineers, South Pacific Division, military and civil boundaries, and for any South Pacific Division customers, as determined by the Contracting Officer. Project work will include subsurface investigations, geophysical and strength testing, materials testing and materials property development, seismicity and seismic parameters, seepage and stability analysis, borrow site investigations to determine suitability of materials, periodic detailed inspections and/or risk assessments of dams or levees, design/construction parameters, designs for dam and levee safety remediation including but not limited to large embankments, floodwalls and channels, insitu densification, seepage and stability berms, impermeable blankets, cutoff walls, subsurface drainage systems, relief wells, development of methods to mitigate for seismic activity, design of dewatering systems, development of construction plans and specifications (SPECSINTACT), e.g. design alternatives, quantities, plans, cost estimates(M-CACES), and instructions to field personnel.