Project Purpose & Status
WSSC Water installed 2.5 miles of new 48-inch raw water pipeline from the Rocky Gorge Raw Water Pumping Station to the Patuxent Water Filtration Plant, location along MD 198. The project was completed in August 2025. Project milestones include:
- Pipe installation - December 2024
- Roadway paving - May 2025
- Restoration and tree planting - June 2025
- Roadway striping and installation of raised crosswalks - August 2025
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The new pipeline increases the Patuxent Water Filtration Plant’s production to meet the drinking water needs of Prince George’s and Montgomery County residents while ensuring infrastructure resiliency and redundancy.
To view past presentations and updates on this project, please scroll down to the bottom of the page.
Project Audit
In July 2025, WSSC Water engaged WSP USA, Inc., an outside consulting firm, to conduct an independent evaluation and audit of this pipeline project. The goal of this independent review was to identify the underlying root causes of the challenges encountered and capture lessons learned to strengthen future project delivery.
Project Audit Reports
- Patuxent Project Audit Report
- Patuxent Project Audit Report - Appendix
- Patuxent Project Audit Report - Executive Summary Memo
Past Presentations and Updates
June 2024 Update
Pipeline installation – 15627 Bond Mill Rd
Backfill process – 15697 Bond Mill Rd
Pipeline installation - 15622 Bond Mill Rd
Temporary paving – 15626 Bond Mill Rd
Winter 2022 Update
Excavating and installing the new 48” Raw Water Line on Bondmill Road.
Finishing welding wires for cathodic protection and applying filler tape around the joint, The joint is then wrapped with 2 layers of Polyken Wrap Tape.
Placement of the new 48” Raw Water Line on Bondmill Road.
Placing and honing a 20 foot piece of the new 48” Raw Water Line on Bondmill Road
Last Modified: January 8, 2026, 2:08 pm EST