Water is life.

McMillen began designing and building lifelines for clean water two decades ago. Since then, we have continuously focused on storing, reusing, conserving, and distributing water. We connect communities to clean drinking water, promote efficient use of irrigation, and consciously harness the power of water.

scopes of work

We've got you covered.

  • Levees, diversion structures, and dams
  • Pipes and pipelines (e.g., large-diameter pipelines, steel, fiberglass reinforced pipe (Hobas), High-Density Polyethylene (HDPE), reinforced concrete piping, and Corrugated Metal Pipe (CMP)
  • Pipe linings (including InsituMain, spray applications, concrete, and welded steel)
  • Non-destructive testing and evaluation of penstock’s concrete and steel and other supporting infrastructure
  • Industrial coatings
  • Flow bypass systems
  • Open channel flumes and culverts
  • Cofferdams and dewatering
  • Pump stations
  • Pressurized network analysis and design (penstocks, etc.)
  • Intakes, outlets, and screens
  • Valves (pressure-controlled, butterfly, knife, needle, ball, plug, fixed-cone, and pressure relief valves
  • Energy dissipation structures
  • Associated electrical instrumentation and controls and mechanical components
  • Hydraulic Structural Steel (HSS) structures including gates, Regulating Outlets (ROs), Lower-Level Outlets (LLOs), bulkheads, and stoplogs
  • Irrigation canals, headgates, etc.
  • Partial or full Re-use Aquaculture Systems (PRAS/RAS)
  • Water supply (e.g., wells, aquifers, rivers, lakes, or tanks; gravity-fed or the diversion and screening of other water sources)
  • General hydrologic analysis (flow volumes, frequency analysis, flow duration, hydrologic modeling (HEC-HMS), and hydrologic statistics (HEC-SSP)
  • General hydraulic analysis (open channel flow, hydraulic modeling (HEC-RAS 1D and 2D), outlet/spillway capacity, stage discharge-curves, and energy dissipation performance)
  • Computational Fluid Dynamics (CFD) modeling (Flow-3D)
  • Hydraulic transient analysis (cavitation, water hammer, surge analysis, and AFT impulse)
  • Pressurized pipe flow models and pipe network modeling
  • Water supply forecasting groundwater flow
  • Water quality and temperature modeling
  • Fire life safety (suppression, alarms and mass notification, smoke detection and controls, HVAC, access control, wildland-urban fire interface reports, hydrant systems, and property fire breaks)
  • All heavy civil work, pipe installations (above and below ground), and repairs
  • FEMA flood mapping, no-rise evaluations, CLOMR and LOMR
Water Control & Delivery work.