Project Details

Location
San Bernardino County, CA
Contract Cost
$12,849,500.00
Date of Commencement
December 2024
Date of Completion
In progress
Project Owner
Department of Transportation (DOT) - Caltrans
Contract Number
08-1J3304
Type of Contract
Design Bid Build (DBB)

Project Description

TSI Engineering delivered comprehensive building and site improvements at the Valley Wells Safety Roadside Rest Area (NB and SB) along Interstate 5 near Mountain Pass. The project modernized facility infrastructure, site circulation, utilities, and safety systems under a federally funded Caltrans building-construction contract.

Construction included full automation of the wastewater treatment facility at the rest area with chemical dosing, biological treatment, recirculating filtration, PLC-based automation, fiber communications and SCADA integration and existing building plumbing upgrades.

Scope Highlights

  • Installation of Sludge Contact Tanks, Media Tanks, Recirculation Tanks, Recirculating Sand Filter, Anoxic Treatment Filter, Effluent Storage Tank and Leach Field Disposal System.
  • Installation of an Alkalinity Feed System for pH stabilization and biological process control
  • Electrical upgrades included installation of a motor control center, PLC control panels, ethernet and fiber communication and cellular communication hardware
  • Pavement delineation, signage, and painted pavement markings
  • Temporary traffic control and water pollution control implementation
  • ADA accessibility, curb, dike, and site layout improvements
  • Installation of new plumbing fixtures for comfort stations

Performance

  • Managed multi-discipline coordination (building, utilities, traffic, landscape)
  • Achieved compliance with federal-aid requirements (ACIMG-0153(049) E)
  • Executed work adjacent to active Interstate 5 corridor