work underway on a water-discharge structure we designed for poor soil conditions
back to services

stormwater management

Barr’s civil engineers, ecologists, and landscape architects work in concert to design and implement integrated stormwater management systems that reduce pollutants, prevent erosion, and reduce both stormwater rate and volume.

Our expertise covers all aspects of stormwater management including planning, modeling, pollution prevention plans, National Pollution Discharge Elimination System (NPDES) permitting, design, and construction plans and specifications. We work with cities, watershed districts, and businesses to design cost-effective and resource-efficient solutions that work with nature. As a leader in ecological stormwater management techniques, Barr has designed some of the region’s most innovative best management practices (BMPs) including rainwater gardens, infiltration basins, stormwater detention basins, bioretention facilities, and stormwater wetlands.

Barr has developed a computer model that calculates the sediment removal efficiency of underground stormwater-treatment structures based on variables such as precipitation, pollutant particle size, drainage area, and watershed characteristics. The program, known as Sizing Hydrodynamic Separators and Manholes (SHSAM), is available here.
our service specialties include:
  • erosion control
  • hydrologic and hydraulic modeling
  • infiltration and filtration systems
  • infrastructure inventory and assessment
  • low-impact site development
  • stormwater management planning
  • stormwater utility design
  • stormwater-pollution prevention plans