Project description

The Piney Branch Sewer Interceptor project included the realignment of a force main between two (2) pumping stations in Charles County, Maryland. The project is located in environmentally sensitive areas, such as wetlands, a 100-year floodplain and several bodies of water.

DFI provided Construction Management and Inspection (CM&I) services for this Charles County, Maryland Department of Utilities project. The purpose of this project is to construct a realignment of the existing eight (8)-inch diameter force main from MD-Five (5) pump station located off Leonardtown Road to the St. Mark's pump station located off St. Charles Parkway in Waldorf, Maryland.

  • Construction included approximately 11,000 linear feet of 42-inch gravity sewer next to (parallel) to the existing Piney Branch Interceptor Sewer that runs along the stream bed. This is Phase Two (2) of constructing a parallel sewer from MD-301 to the Mattawoman Interceptor just beyond Berry Road (MD-288).
  • Construction is within an environmentally sensitive areas, such as, wetlands, 100-year-old floodplain, waters of the United States and within the Maryland Department of Transportation (MDOT) State Highway Administration (SHA) corridor, which includes researching and obtaining necessary permits.
  • Construction of a 10 foot x 15 foot precast vault at the tie-in to the existing 60-inch Mattawoman Interceptor.
  • The sewer pipe is mostly C905 PVC with approximately 887 feet of Class 53 DIP.
  • There are 30 – six (6)-foot diameter precast MHs and one (1) – four (4) foot diameter precast MH.
  • Three (3) micro-tunneling areas under the three road crossings at Middletown Road, Davis Road and Berry Road (MD-288).
  • Several areas of concrete encasements, 40 foot in length, under steam and drainage way crossings.
Client Name
Charles County, Maryland Department of Utilities
completion date
Project Cost
Project Website
Learn More
Sustainability & Environmental
Utility & Water & Wastewater
Construction Management & Inspection
Services Provided
Construction Inspection
Construction Management
Daily Report
Document Control
Photo Documentation
Project Documentation
Review and Recommend
Standards and Specifications Compliance
Environmental Compliance
Progress Documentation
Public Outreach
Drone Photography
No items found.

Related Projects

Understanding your needs is key to creating sustainable engineering design solutions.

More Projects

Engineering tomorrow's future.

Get in Touch