Design/Build construction of a new shop and yard facility used in maintenance and storage of Metro trains along with new parking garages. Construction consisted of building & surface demolition; roadways; earthwork; track work; shop facilities mass excavation; utility relocation for: electrical distribution, telecommunication distribution, waterlines, and sanitary sewer systems; storm water management piping and systems; parking lots; contaminated soil abatement; and track storage areas.

100% of this contract was self-performed by Total

The added cost to our contract amount was the result of unforeseen change conditions encountered during excavation for our work. The changes included unsuitable soils, utility conflicts/relocations, and contaminated soil abatement. Additionally, the Owner elected to exercise contract options and add

Our role in this project was a design/assist subcontractor for Hensel Phelps Construction. The scope of our work included all roadway construction, utility installations, and associated site work including:

• > Clear and grub
• > Building/Surface Demolition
• > Erosion and sediment controls
• > Excavation of approximately 180,000 CY
• > Grading of all paved areas, building pads, hardscape
• > New roadway and parking areas
• > Utility installations including:
  • Storm Drain RCP pipe ranging from 24” to 78”
  • DIP water pipe ranging from 8” to 24”
  • PVC sewer pipe ranging from 8” to 12”, including forcemains & lift stations
  • Oil/Water Separators
  • Electrical/Telecommunication ductbank 4-Way through 26-Way
  • Jack and bore as required under existing facilities
• > Bioretention Ponds
• > 96” underground storm water quality control system
• > Storm water management ponds and all associated culverts and structures
• > Soil stabilization of 10,100 SY for roadway and structure by stone bridge lift for CL soil
• > Contaminated soil abatement