Storm Drainage

Storm Water & Drainage Services

  • Area Wide Drainage Studies
  • Open-Channel Design
  • Storm Water Collection Systems
  • Erosion Control and Sedimentation Plans
  • Storm Water Detention and Water Quality Facilities
  • BMP Evaluation and Monitoring

Freightliner Impervious Area Mapping

Client: Freightliner Trucks

Robinson & Sawyer, Inc. provided pervious/impervious area mapping for Freightliner’s 105 acre facility in Gastonia.


Bessemer City Park

Client: Gaston County

Robinson & Sawyer, Inc. provided design for the replacement of approximately 1,465′ of storm drain pipe along with associated drainage structures. The project also included design surveying and as-built maps upon completion of the project.

City of Gastonia Storm Drainage Improvement Projects:

Client: City of Gastonia

  • Gum-Ida-Hemlock Neighborhood Project
  • Trinity Avenue Project
  • Milton Avenue Project
  • Chestnut Street Project
  • Garland Avenue Project

Miscellaneous storm drainage improvement projects involving design surveys, analysis and design, construction document preparation, easement acquisition surveying and mapping.

Gaston Memorial Hospital Area Wide Drainage Study

Client: Gaston Memorial Hospital

Study included hydraulic analysis of the drainage basin (approximately 143 acres) and an analysis of major detention structures within the basin.

Drainage Study of Cleveland Avenue Drainage Basin

Client: City of Bessemer City

Study included hydraulic analysis of the drainage basin (approximately 144 acres) and a hydraulic analysis of drainage structures within the basin.