Project Case Study
Imperial Irrigation District -- Site Concrete
Client: Imperial Irrigation District
Location: Imperial, CA
Subcontractor: Westcon Construction Services, Inc.
Project Overview
Westcon Construction was awarded the site concrete scope for the Imperial Irrigation District's Anza Substation C10 Replacement project. This project supported critical infrastructure improvements for IID's electrical and municipal operations in Imperial, CA. The work required specialized foundation installation, rebar placement, excavation, backfill, and site grading to ensure long-term durability and compliance with IID's engineering standards.
Scope of Work
Westcon's responsibilities included:
- Excavation, backfill, and regrading of site areas for foundation installation.
- Installation of (6) new foundations for pipe structures, (1) foundation for a 15kV Cap Switcher, and (1) foundation for a 15kV circuit breaker.
- Rebar installation, concrete sampling, and strength testing.
- Installation of road base as required by IID specifications.
- Removal and legal disposal of spoils and debris.
- Compliance with prevailing wage requirements, AB 219, and all IID safety/environmental standards.
Key Challenges & Solutions
1. Substation Operations
The project was performed within an active IID substation, requiring strict adherence to utility safety protocols, coordination with IID crews, and work sequencing to avoid service disruptions.
2. Specialized Foundations
Installation of foundations for electrical equipment demanded precise rebar placement, compaction testing, and compliance with IID structural drawings to meet utility-grade standards.
3. Environmental & Compliance Standards
Westcon ensured compliance with IID's environmental requirements, including spoil disposal, dust control, and adherence to stormwater pollution prevention measures.
Visual Progression
Site preparation and excavation for IID Anza Substation foundation work.
Rebar installation prior to concrete pour.
Formwork and layout of foundation placements.
Heavy equipment mobilization for excavation.
Crews performing compaction and prep work.
Concrete placement operations at IID substation.
Finished concrete foundations curing.
Finalized foundation structures for electrical equipment installation.
Results & Impact
- Delivered complete site concrete scope at IID's Anza Substation safely and efficiently.
- Installed specialized foundations to support critical 15kV electrical infrastructure.
- Ensured compliance with IID safety, prevailing wage, and environmental standards.
- Supported IID's long-term reliability and infrastructure modernization efforts.
Conclusion
The Imperial Irrigation District C10 Replacement project demonstrates Westcon's expertise in municipal and utility-grade site concrete. By delivering precision foundation work under strict compliance requirements, Westcon ensured the successful upgrade of IID's infrastructure in Imperial, CA.
