Self-Performed Work

The Largest Water/Wastewater Treatment Contractor in Idaho

RSCI has the capability to self-perform up to 95% of the project scope with approximately 250 construction professionals. The ability to self-perform the following diverse ranges of work is the basis of our expertise: earthwork, site piping, structural concrete, structural steel, miscellaneous metals, mechanical piping, plumbing, equipment installation, and electrical. Completed projects range from $50,000 to $50,000,000. 

RSCI stands as the largest water/wastewater treatment contractor in Idaho, boasting over three decades of experience. Our accomplished team and abundant resources enable the successful execution of any treatment facility project. Beyond water/wastewater, RSCI is adept in the construction of bridges, dams, fish facilities, and government facilities.


RSCI specializes in complex, challenging, and technical projects, often remote with limited access, and usually performed in extreme conditions over a short working season with mandatory milestones and completion dates. These are the projects in which RSCI employees thrive, demonstrating ingenuity in planning and problem-solving.

Mechanical & Electrical

RSCI’s in-house mechanical and electrical teams are involved in the entire project: proposal through design, construction, commissioning, and turn-over. Mechanical and electrical systems are critical aspects of a project, and RSCI’s past success often results in controlling and self-performing this work. RSCI’s team procures long lead item equipment early in the design phase, and highly qualified tradesmen put quality work in place.

Structural Concrete

RSCI crews place concrete on nearly every project, from temperature-controlled mass concrete for dam spillways or ogee crests to structural concrete for water retaining structures such as a 140-foot diameter cast-in-place clarifiers with a 2.3-million-gallon capacity. Average projects for RSCI have 5,000 to 8,000 CY of concrete; however, RSCI has placed up to 35,000 CY of concrete in a single project.

Roller Compacted Concrete

RCC is a concrete with zero-slump consistency and is transported, placed, and compacted using earth and rockfill construction equipment. Placed in lifts, the surface may be walked on or another layer placed immediately following the compaction process. This efficient process eliminates forming and finishing, is cost effective, and is extremely heavy duty.

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